Developer Tools
Valid data generators for software testing and development. All generated data respects official standards, including validation algorithms.
Available tools
Term Sheet Analyzer
Analyze critical VC and SAFE term sheet clauses: liquidation preference, anti-dilution, board composition, drag-along, vesting, ROFR. Risk score 0-100 + negotiation tips for EU founders. On-prem AI, privacy guaranteed.
IBAN Generator
Generate valid IBANs for Italy, Germany, France, Spain, UK and other European countries. MOD-97 validation included.
Italian Tax Code Generator
Generate valid Italian tax codes for individuals and businesses. Complete database of Italian municipalities.
Business Registration Number Generator
Generate business registration numbers: Italian VAT, European VAT, US EIN, French SIREN/SIRET and more.
Base64 Encoder/Decoder
Encode and decode Base64 with support for text, files and images. URL-safe variant available.
URL Encoder/Decoder
Encode and decode URLs with encodeURI, encodeURIComponent. URL parser and query string builder included.
Slug Creator
Create URL-friendly slugs from titles and texts. Multilingual support with accent removal and bulk mode.
Case Converter
Convert text between 13 formats: camelCase, PascalCase, snake_case, kebab-case, SCREAMING_SNAKE and more.
Password Generator
Generate secure passwords with high entropy. Passphrase mode, bulk generation and advanced options.
JSON Formatter
Format, minify and validate JSON. Configurable indentation, key sorting, detailed statistics.
Hash Calculator
Calculate MD5, SHA-1, SHA-256, SHA-512 hashes. File support, HMAC and checksum verification.
Lorem Ipsum Generator
Generate placeholder text in various styles: classic, hipster, tech, italian. Paragraphs, sentences, words.
Regex Tester
Test regex in real-time with highlighting, capture groups, cheat sheet and common patterns.
Date Diff Calculator
Calculate difference between dates, working days, age. Add or subtract time from a date.
Timezone Converter
Convert times between world timezones. View current time in multiple zones with DST support.
HTML Minifier
Minify and compress HTML with advanced options. Remove comments, whitespace, optional attributes.
CSS Formatter
Format, beautify and minify CSS. Expanded, compact, compressed styles with property sorting.
JavaScript Formatter
Format, beautify and minify JavaScript. Configurable indentation, quote style, semicolons.
UUID Generator
Generate UUID v4 (random), v7 (timestamp) and ULID. Bulk generation, validation and TXT export.
JWT Decoder
Decode JWT, view header and payload, check expiration. Standard claims descriptions included.
Color Converter
Convert colors between HEX, RGB, HSL and CMYK. Color picker, complementary, triadic and analogous palettes.
Contrast Checker WCAG
Check color contrast according to WCAG 2.1. AA and AAA compliance for text and UI components.
Markdown ↔ HTML Converter
Convert Markdown to HTML and vice versa. Live preview, file download, table and code support.
Markdown to PDF / Word
Convert Markdown to PDF or Word (DOCX) with professional quality: cover page, automatic table of contents, 4 typographic styles, clickable internal links.
QR Code Generator
Generate custom QR codes from URL, text, vCard or WiFi. Colors, sizes and error correction.
HTTP Status Explorer
Explore all HTTP status codes: 1xx-5xx. Detailed descriptions, categories and RFC references.
MIME Type Finder
Find the correct MIME type for any file extension. Complete database with all categories.
User Agent Parser
Parse User Agent strings. Identify browser, OS, device and detect bots/crawlers.
Text Diff
Compare two texts and highlight differences. Split and unified view, ignore whitespace.
Epoch/Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates. Seconds and milliseconds support, timezone-aware.
Chmod Calculator
Calculate Unix permissions: convert between numeric (755) and symbolic (rwxr-xr-x). Common presets included.
Cron Expression Builder
Build cron expressions visually. Preview next 5 executions, common presets and cheat sheet.
Percentage Calculator
Calculate percentages: X% of Y, percentage change, margin vs markup. 4 calculation modes.
SQL Formatter
Format, beautify and minify SQL. PostgreSQL, MySQL support. Automatic keyword uppercasing.
SEO Meta Tag Generator
Generate SEO meta tags with Google SERP preview, Open Graph and Twitter Card. Character counters included.
Password Strength Analyzer
Analyze password strength in real-time: entropy, crack time, vulnerable patterns and suggestions.
PKCE Challenge Generator
Generate code_verifier and code_challenge pairs for OAuth 2.0 PKCE. S256 and plain methods supported.
Fake User/Profile Generator
Generate realistic fake user profiles for testing. 6 locales, JSON/CSV export, complete data.
Mock JSON Generator
Generate mock JSON data with customizable templates and special tokens. Presets for users, products, orders.
CSS Gradient Generator
Create CSS gradients visually: linear, radial, conic. 20 presets, color stop editor, live preview.
Phone Number Formatter
Format phone numbers in 5 formats (E.164, RFC 3966, international). 30+ countries supported.
Tax ID Validator Multi-Country
Validate tax IDs from 15+ countries with real algorithms. CPF, NIF, BSN, PESEL, SSN and more.
DNS Lookup
Query DNS records (A, MX, TXT, NS, CNAME, AAAA, SOA) for any domain. Reverse DNS and propagation check.
SSL Certificate Analyzer
Analyze SSL/TLS certificates: validity, issuer, SAN, protocol, cipher and A+-F grading.
HTTP Header Inspector
Inspect HTTP headers of any URL with security score and recommendations for 9 security headers.
Redirect Tracer
Trace the complete HTTP redirect chain with status codes, timing and loop detection.
Meta Tag Scraper
Extract meta tags, Open Graph, Twitter Card and JSON-LD structured data from any URL with SEO warnings.
Email Validator
Validate email addresses: syntax, MX records, disposable and role-based detection with suggestions.
WHOIS Lookup
Query WHOIS information: registrar, creation/expiry dates, nameservers and domain status.
IP Geolocation
Geolocate any IP address: country, city, ISP, ASN, proxy and hosting detection.
Robots.txt Analyzer
Analyze robots.txt file: rules, sitemap, Allow/Disallow directives and custom URL test.
Link Checker
Check all links on a page: identify broken links, internal/external with health score.
Sitemap Validator
Validate XML sitemaps: structure, URLs, lastmod, changefreq with optional accessibility check.
API Tester
Test API endpoints: GET, POST, PUT, DELETE with custom headers, body and JSON response analysis.
VAT Number Validator
Validate European VAT numbers via the official VIES service. 27 EU countries supported.
BMI Calculator
Calculate your Body Mass Index (BMI) with WHO classification.
Calorie/TDEE Calculator
Calculate your Total Daily Energy Expenditure (TDEE) using the Mifflin-St Jeor formula.
Macro Calculator
Calculate the optimal distribution of protein, carbs and fat based on your goal.
Pregnancy Due Date Calculator
Calculate your due date using Naegele's rule. Gestational week and trimester.
Ovulation Calculator
Calculate fertile days and ovulation date based on your menstrual cycle.
Mortgage Calculator
Calculate monthly mortgage payment, total interest and amortization schedule.
Net Salary Calculator
Calculate net salary from gross with 2026 IRPEF tax brackets, INPS contributions and deductions.
Compound Interest Calculator
Calculate compound interest with periodic contributions, compounding frequency and growth chart.
VAT Calculator
Calculate and extract VAT with all Italian rates (4%, 5%, 10%, 22%).
Invoice Generator
Generate professional invoices with automatic VAT and totals. Print or save as PDF.
Flight Distance Calculator
Calculate distance between airports using the Haversine formula and estimated flight time.
POI Finder Italy
Search museums, galleries, theatres and restaurants across Italian cities using Open Data (OpenStreetMap ODbL + Wikidata CC0). First Travel Intelligence dev-tool.
Quality of Life Index Italy
Compare up to 3 Italian regional capitals by cultural density index 0–100 with an inline SVG bar chart. OpenStreetMap + ISTAT 2024 data. Custom CSV download. CC-BY licence.
AI Trip Planner Italy
Plan your Italy trip with AI in minutes. Multi-step wizard: destination, dates, interests and budget. Day-by-day itinerary with POIs and cost estimates. Shareable deep-link. Powered by Cloudflare Workers AI.
Best Time to Visit Italy
Discover the best month to visit 30 major Italian cities. Data-driven analysis of weather, events and tourist density. Open data CC-BY 4.0.
European Cities Event Calendar
Browse monthly event density (music, sport, culture, business) across 30+ Italian and European cities. Heat-map and per-category breakdown, refreshed nightly from official open data sources.
Travel Budget Calculator
Plan your travel budget with estimates for accommodation, food, transport and activities.
Flight Carbon Calculator
Calculate your flight carbon footprint with emission factors by class and distance.
Cooking Measurement Converter
Convert cups, tablespoons, teaspoons, ounces and grams. Ingredient density database included.
Recipe Scaler
Recalculate recipe amounts for different servings with smart rounding.
Food Cost Calculator
Calculate recipe food cost and suggested selling price for restaurants.
Word Counter
Count words, characters, sentences, paragraphs. Estimated reading and speaking time.
GPA Calculator
Calculate weighted grade point average and conversion to US 4.0 GPA scale.
Grade Calculator
Calculate the final grade needed to reach your target average.
Pomodoro Timer
Pomodoro Timer with 25min work sessions, 5min breaks, long break after 4 cycles.
Age Calculator
Calculate your exact age in years, months and days. Next birthday and zodiac sign.
Love Calculator
Calculate love compatibility between two names. Just for fun!
Universal Unit Converter
Convert length, weight, volume, temperature, speed, area, pressure and more.
Countdown Timer
Create a countdown to any event. Days, hours, minutes and seconds live.
Clothing Size Converter
Convert clothing and shoe sizes between EU, US, UK systems for men and women.
US Federal Income Tax Calculator
Calculate your US federal income tax for 2026 with all 7 brackets (10%-37%). Filing status, standard deduction, effective vs marginal rate.
US State Income Tax Calculator (All 50 States)
Calculate state income tax for all 50 US states + DC. Compare flat tax, progressive brackets, and no-income-tax states.
US Payroll Calculator
Calculate your net pay per paycheck: Social Security, Medicare, federal withholding, 401(k)/HSA deductions and state tax.
Belgian E-Invoice Generator (UBL 2.1)
Generate UBL 2.1 / Peppol BIS 3.0 compliant e-invoices for Belgian B2B mandate. VAT: 0%, 6%, 12%, 21%. Download XML.
UK Income Tax Calculator 2025/26
Calculate UK income tax for 2025/26: Personal Allowance, NI, Student Loan. England/Wales/NI and Scotland tax bands.
UK Payroll/PAYE Calculator 2025/26
Calculate UK PAYE payslip: Income Tax by tax code, NI (employee + employer 13.8%), Student Loan, pension auto-enrolment.
German Income Tax Calculator 2026
Calculate German income tax 2026 with §32a EStG formula. Steuerklasse 1-6, Solidaritaetszuschlag, Kirchensteuer, social contributions.
Italian IRPEF Tax Calculator 2026
Calculate net salary from gross: IRPEF 2026 3 brackets, regional/municipal taxes, INPS contributions, employment deductions, income support.
Italian TFR Severance Pay Calculator 2026
Calculate Italian TFR severance pay: annual accrual (salary/13.5), ISTAT revaluation, 17% substitute tax, estimated separate taxation.
Italian Payslip Simulator 2026
Simulate Italian monthly payslip from gross salary: INPS 9.19%, progressive IRPEF 2026, regional/municipal taxes, employment deductions, income support.
Italian Universal Child Benefit Calculator 2026
Calculate Italian Universal Child Benefit (Assegno Unico) 2026: per-child amount based on ISEE, child age, disability supplements, large family and dual-worker bonuses.
Italian NASpI Unemployment Benefit Calculator 2026
Calculate Italian NASpI unemployment benefit 2026: monthly amount (75% up to EUR 1,425 + 25% excess), max 24 months duration, 3%/month reduction from month 9.
Italian NASpI 2026 — Eligibility Wizard and Amount Calculator
3-step wizard: check 4 NASpI eligibility criteria (employment, involuntary loss, 13+ contribution weeks, 30+ working days), then calculate monthly gross amount (2026 threshold €1,378.61), duration with over-55 extension, and -3%/month reduction from month 7.
Italian Domestic Worker INPS Contributions 2026
Calculate Italian domestic worker INPS contributions 2026: hourly contribution tables, employer (2/3) and worker (1/3) split, quarterly amounts and payment deadlines.
Italian F24 Calculator 2026 — IRPEF + Regional/Municipal Surcharges
Simulate the Italian F24 tax form 2026: IRPEF brackets (23%/35%/43%), regional (1.23-3.33%) and municipal surcharges, June/November tax advances, voluntary regularization (ravvedimento). Markdown export.
Italian Voluntary Tax Regularization Calculator 2026
Calculate Italian voluntary tax regularization 2026: reduced penalties (sprint 1.5% to ultra-biennial 5%), legal interest 2.5% annual, total F24 amount.
Italian Superbonus Remaining Installments Calculator 2026
Calculate remaining Superbonus annual installments: 110%/90%/70%/65% deduction in 4 annual installments, already used installments, remaining IRPEF deduction.
Swiss Income Tax Calculator 2026
Calculate Swiss taxes 2026: federal, cantonal (26 cantons), municipal, AHV/IV/EO social insurance, church tax.
Netherlands Income Tax Calculator 2026
Calculate Dutch net salary 2026: income tax (36.97%/49.50%), tax credits (heffingskorting/arbeidskorting), 30% ruling, pension.
Spanish IRPF Tax Calculator 2026
Calculate Spanish IRPF 2026: state + regional brackets (Madrid, Catalonia, Andalusia, Valencia…), Social Security, personal/family minimum.
French Income Tax Simulator 2026
Simulate French income tax 2026: family quotient, 5 progressive brackets, décote, social charges (CSG/CRDS, pension, AGIRC-ARRCO).
French Payslip Simulator 2026
Calculate the complete French payslip 2026: employee contributions (CSG 9.2%, CRDS, pension, unemployment), employer charges (~45%), net pay and total employer cost.
Factur-X E-Invoice Generator 2026 (ZUGFeRD BASIC)
Generate compliant Factur-X BASIC e-invoices (ZUGFeRD 2.3): seller/buyer SIRET, VAT, line items. XML ready to embed in a PDF.
French SIREN / SIRET Validator
Validate a French SIREN (9 digits) or SIRET (14 digits) with the Luhn algorithm. Probable region, head office vs branch identification (NIC).
French NIR Social Security Number Validator
Validate the French NIR (social security number, 15 digits): gender, birth year/month, department, commune, MOD 97 control key. Corsica (2A/2B) and DOM-TOM support.
French VAT Calculator 2026 — 4 Rates
Calculate French VAT in both directions (HT→TTC and TTC→HT). 4 rates: 20% standard, 10% intermediate, 5.5% reduced, 2.1% super-reduced. All-rates comparison table.
French Auto-Entrepreneur / Micro-Business Simulator 2026
Simulate French micro-business charges 2026: social contributions (12.3%-21.2%), optional liberatory income tax, CA caps (77,700 / 188,700 EUR), annual and monthly net income.
French Self-Employed TNS / ex-RSI Contributions 2026
Calculate URSSAF contributions for self-employed (TNS): health, basic/complementary pension, disability, CSG-CRDS, family benefits. Quarterly installments.
French Real Estate Purchase Costs Calculator 2026
Estimate real estate purchase costs: DMTO transfer duties (5.80% old / 0.715% new), notary fees, disbursements. Total cost, required loan and down payment %.
French Legal Severance Pay Calculator 2026
Calculate French legal severance pay (L.1234-9 Labour Code): 1/4 month/year (first 10 years) + 1/3 month/year (beyond). Reference salary, tax exemption ceiling.
French Unemployment Benefit (ARE) Simulator 2026
Estimate French unemployment benefit (ARE): SJR, max(57% SJR / 40.4% SJR + EUR 12.95), floor/ceiling, monthly benefit and indemnification duration (730 or 1095 days).
German Health Insurance Calculator GKV vs PKV 2026
Compare German GKV (statutory) vs PKV (private) health insurance 2026. GKV: income * (14.6% + 1.7%) / 2. PKV: base rate by age. Employer contribution.
German Care Level Calculator 2026 — ADL Modules
Calculate Pflegegrad (1-5) using 6 ADL modules per Begutachtungs-Richtlinien (BRi). Pflegegeld and Pflegesachleistung 2026.
Reverse Charge Invoice Generator §13b UStG Germany
Generate §13b UStG compliant Reverse Charge invoices. Mandatory notice in German and English, VAT IDs both parties. HTML download.
German Trade Tax Calculator 2026 (Gewerbesteuer)
Calculate German trade tax 2026. Formula: (profit - 24,500 EUR exemption) * 3.5% Messzahl * Hebesatz%. All major city rates included.
German Tax Number & IdNr Validator
Validate German Steuernummer (10-11 digits, Bundesland format) and Identifikationsnummer (11 digits, MOD-11 checksum). Auto-detection.
German VAT ID Validator MOD-11
Validate German Umsatzsteuer-Identifikationsnummer (DE + 9 digits) with MOD-11 algorithm §27a UStG. Check digit calculation.
German Social Security Number Validator
Validate German Sozialversicherungsnummer (12 chars). Format: area code + TTMMJJ + initial + serial + checksum.
German GmbH Formation Cost Calculator 2026
Calculate all GmbH formation costs: 25,000 EUR share capital, notary, trade register, tax advisor, annual accounts. 4-8 week timeline.
German Minijob Calculator 2026 — 520 EUR Limit
Calculate employee net, employer flat contributions (KV 13%, RV 15%, Lohnsteuer 2%) and total cost for Minijob up to 520 EUR/month.
German Property Transfer Tax Calculator 2026 — All 16 States
Calculate property transfer tax (3.5%-6.5%), notary fees, land registry costs and agent commission for property purchase in all 16 German states.
German Payroll Calculator 2026 — Gross to Net
Complete German payslip 2026: income tax, Soli, church tax, social insurance (KV, RV, AV, PV), public/private health, employer costs.
Portuguese IRS Tax Calculator 2026
Calculate Portuguese IRS 2026: 9 progressive brackets, solidarity surtax, Social Security 11%, specific deduction, dependents, 14-month pay.
Swedish Income Tax Calculator 2026
Calculate Swedish tax 2026: municipal tax, state tax (20%), basic deduction, employment credit, church tax, pension 7%.
Australian Income Tax Calculator 2025-26
Calculate Australian tax 2025-26: 5 progressive brackets, Medicare Levy/Surcharge, LITO, HELP/HECS repayment, Superannuation. Resident, non-resident and working holiday.
Japanese Income Tax Calculator 2026
Calculate Japanese income tax 2026: 7 brackets (5%-45%), reconstruction surtax 2.1%, resident tax 10%, social insurance, employment deductions.
Canadian Income Tax Calculator 2025-26
Calculate Canadian tax 2025-26: federal + provincial (ON, BC, AB, QC), CPP/CPP2, EI, Basic Personal Amount, RRSP deduction.
Indian Income Tax Calculator FY 2025-26
Calculate Indian income tax FY 2025-26: new and old regime, Section 87A rebate, surcharge, 4% cess, EPF, 80C/80D deductions.
Brazilian Income Tax (IRPF) Calculator 2026
Calculate Brazilian tax 2026: progressive IRPF, per-bracket INSS, FGTS 8%, 13th salary, dependent and health plan deductions.
South Korean Income Tax Calculator 2026
Calculate South Korean tax 2026: 8 brackets (6%-45%), local income tax 10%, national pension, health insurance, employment deductions.
Polish PIT Calculator 2026
Calculate Polish PIT 2026: 12%/32% brackets, kwota wolna PLN 30,000, ZUS social (pension, disability, sickness), health 9%, employer costs.
UK Stamp Duty Calculator 2025
Calculate Stamp Duty Land Tax (SDLT) for England, LBTT for Scotland, and LTT for Wales. Includes first-time buyer relief and additional dwelling surcharge.
UK VAT Calculator 2025
Add or remove UK VAT from any price: standard 20%, reduced 5%, zero rate. Compare all VAT rates side by side for any amount.
UK National Insurance Calculator 2025/26
Calculate National Insurance contributions: Class 1 employee and employer, Class 2 and Class 4 for self-employed. Updated 2025/26 thresholds.
UK Company Registration Cost Estimator
Estimate setup and annual costs for a UK Ltd, LLP or sole trader. Includes Companies House fees, accountant, registered office and trademark.
UK Student Loan Repayment Calculator
Calculate monthly student loan repayments for all UK plans: Plan 1, 2, 4, 5 and Postgraduate Loan. Includes years to repay and write-off analysis.
US Sales Tax Calculator 2025
Calculate sales tax for all 50 US states including average local tax. Shows the 5 no-sales-tax states: Oregon, Montana, New Hampshire, Delaware, Alaska.
US 401(k) Calculator 2025
Project 401(k) growth to retirement with employee contributions, employer match, and compound interest. 2025 limits: $23,500 + $7,500 catch-up.
US W-4 Withholding Estimator 2025
Estimate recommended federal withholding for the 2025 W-4 form. Filing status, 2025 standard deduction, tax credits and updated brackets.
US Social Security Benefit Estimator 2025
Estimate monthly Social Security benefits at age 62, 67 and 70. PIA calculation, Full Retirement Age and break-even analysis for optimal claiming strategy.
US Self-Employment Tax Calculator 2025
Calculate US self-employment tax (15.3%): Social Security 12.4%, Medicare 2.9% + Additional 0.9% above $200K. SE deduction, QBI 20% and quarterly payments.
US Mortgage Calculator 2025 — 30yr/15yr & ARM Amortization
Calculate monthly payment, total interest and amortization schedule for 30yr/15yr fixed and 5-1 ARM mortgages. Breakeven analysis between loan types.
US Healthcare Cost Calculator 2025 — HMO vs PPO Comparison
Compare annual costs between HMO and PPO plans: premiums, deductible, copay, coinsurance and out-of-pocket maximum based on expected usage.
US 529 Education Savings Calculator 2025 — College Cost Projection
Project 529 plan savings against expected college costs. Calculate required monthly contribution with compound growth and college inflation rate.
Roth vs Traditional IRA Comparison 2025 — After-Tax Retirement
Compare Roth IRA vs Traditional IRA: after-tax retirement value across different tax rate scenarios. 2025 limits, catch-up contributions and eligibility.
US Student Loan Repayment Calculator 2025 — IBR, PAYE, REPAYE Plans
Compare repayment plans: Standard, IBR, PAYE and REPAYE. Monthly payment, total interest and potential debt forgiveness with year-by-year simulation.
US Standard vs Itemized Deduction Calculator 2025
Compare 2025 standard deduction ($15K single, $30K MFJ) against itemized deductions: mortgage interest, SALT, charitable, medical. Shows optimal choice.
US Business Expense Deduction Calculator 2025 — Schedule C
Calculate deductible business expenses by category: office, travel, meals (50%), vehicle, software, marketing. Includes home office deduction and Schedule C.
US Capital Gains Tax Calculator 2025 — Short & Long-Term + NIIT
Calculate 2025 capital gains taxes: 0%/15%/20% rates for long-term, ordinary rates for short-term. Includes Net Investment Income Tax (NIIT) 3.8%.
US Estate & Inheritance Tax Calculator 2025 — Federal + State
Calculate 2025 federal estate tax (exemption $13.99M, 40% rate) and state inheritance taxes. Covers 14 states with estate or inheritance tax.
US Child Tax Credit Calculator 2025 — CTC & ACTC Phase-Out
Calculate 2025 Child Tax Credit ($2,000 per child) with phase-out and refundable Additional Child Tax Credit (ACTC, $1,700 max). Income-based analysis.
US Earned Income Tax Credit Calculator 2025
Calculate 2025 Earned Income Tax Credit: up to $8,046 with 3+ children. Fully refundable credit for low-to-moderate income workers. Eligibility check included.
US Alternative Minimum Tax Calculator 2025
Calculate 2025 Alternative Minimum Tax: AMTI, exemption with phase-out ($88,100/$137,000), 26%/28% rates vs regular tax. ISO stock options, SALT, depreciation.
US Stimulus Check Eligibility Calculator — All 3 Rounds
Check eligibility for all 3 stimulus rounds: CARES ($1,200), CAA ($600) and ARP ($1,400). Phase-out by filing status, dependents and AGI.
Body Fat Calculator
Calculate body fat percentage using the Navy method. Measure waist, neck, height and hips.
Ideal Weight Calculator
Calculate ideal weight with 4 formulas: Devine, Robinson, Miller and Hamwi.
Water Intake Calculator
Calculate daily water intake based on weight, activity and climate.
BMR Calculator
Calculate Basal Metabolic Rate with Mifflin-St Jeor and Harris-Benedict formulas.
Heart Rate Zones Calculator
Calculate 5 heart rate training zones using the Karvonen method.
Margin Calculator
Calculate profit margin, markup and net profit from cost and selling price.
Retirement Calculator
Estimate retirement savings based on current savings, contributions and returns.
ROI Calculator
Calculate Return on Investment (ROI) and annualized ROI.
Break-Even Calculator
Calculate break-even point in units and revenue. Contribution margin ratio.
Currency Converter
Convert between 15+ currencies with indicative exchange rates.
Jet Lag Calculator
Estimate jet lag recovery days based on timezone difference and travel direction.
Packing List Generator
Generate personalized packing list based on trip type, duration, season and gender.
Menu Price Calculator
Calculate ideal selling price based on target food cost percentage.
Catering Calculator
Estimate catering costs: food, staff, setup and cost per guest.
Cups to Grams Converter
Convert cups to grams for 12+ common ingredients with accurate densities.
Reading Time Calculator
Calculate reading and speaking time. Count words, characters, sentences and paragraphs.
Statistics Calculator
Calculate mean, median, mode, standard deviation, variance, quartiles and more.
Name Generator
Generate random Italian male and female names. Perfect for testing and mockups.
Random Picker
Pick random items from a list using Fisher-Yates shuffle for fair results.
Paint Calculator
Calculate paint needed for a room. Accounts for windows, doors, coverage and coats.
Room Area Calculator
Calculate room area for various shapes: rectangle, square, circle, triangle, trapezoid, L-shape.
Period Tracker
Calculate next period date, ovulation and fertile window.
BAC Calculator
Calculate Blood Alcohol Content using the Widmark formula. Estimate sobering time.
Metabolic Age Calculator
Compare your BMR with age averages to estimate metabolic age.
Smoking Cost Calculator
Calculate smoking costs: daily, monthly, yearly and over 10 years.
Sleep Cycle Calculator
Calculate ideal sleep/wake times based on 90-minute sleep cycles.
Loan Calculator
Calculate monthly loan payment with French amortization. Total interest and repayment.
Debt Payoff Calculator
Calculate how long to pay off debt with fixed monthly payments.
Discount Calculator
Calculate discounted price, savings and total cost for multiple items.
Business Valuation Calculator
Estimate business value using revenue, earnings multiples and asset-based method.
Startup Cost Calculator
Estimate startup costs: legal, equipment, rent, marketing and technology.
Tip Calculator
Calculate tip and split the bill among people. Quick buttons 10%, 15%, 18%, 20%.
Visa Checker
Check if you need a visa to travel. Data for 15+ destinations and nationalities.
Travel Distance Calculator
Calculate distance between 30+ cities using Haversine formula. Estimated flight and drive time.
Passport Validity Checker
Check if your passport is valid for travel. Verify the 6-month validity rule.
Travel Unit Converter
Useful travel conversions: km↔miles, kg↔lbs, °C↔°F, liters↔gallons and more.
World Tipping Guide
Tipping customs in 20+ countries: restaurant, taxi, hotel and bar.
Baking Substitutions
Find baking ingredient substitutes: butter, eggs, milk, sugar, flour and more.
Wine Pairing Guide
Find the perfect wine for every dish. 30+ food-wine pairings with tips.
Restaurant Break-Even
Calculate monthly restaurant break-even: covers needed and minimum revenue.
Cocktail Builder
Recipes for 15 classic cocktails: Negroni, Spritz, Mojito, Margarita with doses.
Cooking Timer
Multiple simultaneous kitchen timers. Add, start, pause and reset independent timers.
Citation Generator
Generate bibliographic citations in APA, MLA and Chicago format.
Shoe Size Converter
Convert shoe sizes between EU, US and UK systems for men and women.
Moving Cost Calculator
Estimate moving costs based on volume, distance, floor and additional services.
Electricity Cost Calculator
Calculate appliance energy cost: monthly and yearly consumption in kWh and euros.
Fuel Cost Calculator
Calculate fuel cost for a trip: liters needed, total cost and cost per km.
Pregnancy Weight Calculator
Calculate recommended pregnancy weight gain per IOM guidelines based on BMI.
Blood Pressure Classifier
Classify blood pressure: normal, elevated, hypertension stage 1/2 and crisis.
Menopause Calculator
Estimate menopause age based on risk factors: smoking, family history, BMI and exercise.
Hourly to Salary Converter
Convert between hourly rate and annual salary. Calculate daily, weekly, monthly gross.
Simple Interest Calculator
Calculate simple interest I = P × r × t. Final amount and average monthly interest.
Price Increase Calculator
Calculate new price after percentage increase or percentage change between prices.
Investment Return Calculator
Calculate CAGR (Compound Annual Growth Rate) and total investment return.
Airline Luggage Checker
Check if your luggage meets airline limits: weight and dimensions for 15+ airlines.
Travel Phrases
Common phrases in 10 languages for travel: greetings, questions, emergencies.
Travel Weather Planner
Find the best months to visit 20+ destinations. Temperature, rain and monthly rating.
Bakery Pricing Calculator
Calculate selling price for baked goods: ingredient cost, labor and target margin.
Sourdough Calculator
Calculate baker's percentages for sourdough bread: flour, water, starter and salt.
Allergen Checker
Check allergens in 30+ common foods: gluten, lactose, eggs, peanuts and more.
Nutrition Label Generator
Create a nutrition label with daily value percentages based on a 2000 kcal diet.
Essay Word Target
Monitor writing progress: real-time word count, words remaining and page estimate.
Study Planner
Generate a personalized study plan: distribute subjects evenly until exam date.
Flashcard Maker
Create and study flashcards. Study mode with flip cards, progress tracking and stats.
Code Snippet Manager
Save and organize code snippets locally in your browser. 25+ languages, tag search, export/import JSON. No account required.
Markdown Notes
Create and manage Markdown notes with live preview. Tags, pin, .md export. Cloud sync. Requires login.
Dev Knowledge Quiz
Test your skills with interactive quizzes on JavaScript, TypeScript and Angular. 10 questions, 30s timer, detailed explanations.
Sprint Velocity Calculator
Calculate your Agile team velocity: mean, standard deviation, 95% confidence interval and forecast for upcoming sprints. CSS bar chart included.
Sprint Capacity Calculator
Plan your sprint team capacity: enter hours/day, days off and ceremony overhead to get effective hours and estimated story points per member.
SLA/SLO Error Budget Calculator
Calculate error budget and allowed downtime for any SLO target. Full nines table (from 1 nine to 99.999%). Essential for Site Reliability Engineering.
DORA Metrics Calculator
Calculate all 4 DORA metrics (Deployment Frequency, Lead Time, Change Failure Rate, MTTR) with Elite/High/Medium/Low classification per Google DORA 2024 benchmarks.
RACI Matrix Generator
Build RACI matrices to define project responsibilities. Add tasks and stakeholders, assign R/A/C/I roles, validate and export to CSV or Markdown.
User Story Generator
Create Agile user stories in "As a...I want...So that" format with Given/When/Then acceptance criteria. Export to Markdown or Jira JSON.
A/B Test Calculator
Calculate sample size for A/B tests at 90%, 95% or 99% confidence. Enter conversion rate, MDE and visitors to get sample size and estimated duration.
Risk Matrix Generator
Create 3x3, 4x4 or 5x5 risk matrices with colored heatmap. Automatic ranking by probability × impact with low/medium/high/critical levels. Export to CSV.
German Church Tax Calculator
Calculate German Kirchensteuer (church tax) 2026 for all 16 Bundeslaender. Bavaria and Baden-Württemberg: 8%. Others: 9% of Lohnsteuer.
German Company Pension (bAV) Calculator
Calculate German company pension (bAV) 2026. Entgeltumwandlung, 15% employer contribution, tax savings and estimated monthly pension.
German Dividend Tax Exemption Calculator
Calculate Freistellungsauftrag and Sparer-Pauschbetrag 2026: 1,000 EUR (single) / 2,000 EUR (couples). Abgeltungsteuer 25% + Soli on excess.
German Capital Gains Tax Calculator
Calculate German Kapitalertragsteuer (Abgeltungsteuer) 2026: 25% + Solidaritätszuschlag 5.5% + Kirchensteuer. Includes Sparer-Pauschbetrag and net gain.
German Child Benefit Calculator
Calculate German Kindergeld 2026: 255 EUR/month per eligible child. Automatic eligibility check by age (up to 18/21/25) and training status.
German Minijob Fixed Contributions Calculator
Calculate German Minijob fixed employer contributions 2026: RV 15%, KV 13%, Lohnsteuer 2%, U1 0.6%, U2 0.24%, Insolvenzgeld 0.06%.
French Real Estate Wealth Tax (IFI) Calculator
Calculate French IFI (Impôt sur la Fortune Immobilière) 2026. Threshold 1,300,000 EUR. Progressive rates 0.5% → 1.5%, decote and plafonnement.
French Business Value-Added Tax (CVAE) Calculator
Calculate French CVAE (Cotisation sur la Valeur Ajoutée) 2026. CA > 500,000 EUR. Progressive rate 0% → 0.75% on capped VA. Includes TVAEC.
French Social Contributions on Investment Income
Calculate French Prélèvements Sociaux 2026 on investment income: CSG 9.7% + CRDS 0.5% + solidarity levy 7.5% = 17.2%. PFU 30%.
French Supplementary Pension (AGIRC-ARRCO) Simulator
Estimate your AGIRC-ARRCO supplementary pension 2026. Point value 1.4159 EUR. Calculate points and monthly pension with coefficient de solidarité.
French Capital Gains Tax Calculator
Calculate French capital gains tax 2026 on real estate and securities. Progressive abatements, PFU 30%, PS 17.2%, high-gain tax > 50,000 EUR.
Italian IMU Property Tax Calculator
Calculate Italian IMU 2026: Cadastral value × 1.05 × multiplier × rate. Covers primary residence, second homes, commercial properties and land.
Italian TARI Waste Tax Calculator
Calculate Italian TARI 2026 waste tax: fixed quota (per m²) + variable quota (household members). Estimates for 10 Italian municipalities.
Italian Capital Gains Tax Calculator
Calculate Italian capital gains tax 2026: 26% stocks/funds/crypto, 12.5% government bonds, real estate exempt after 5 years.
Italian Flat Rental Tax (Cedolare Secca) Calculator
Calculate Italian flat rental tax 2026: 21% free market, 10% regulated rent. Comparison with ordinary IRPF regime.
Italian VAT Calculator
Calculate Italian VAT 2026: 22% standard, 10% reduced, 5% selected goods, 4% essential goods, 0% exports. Add or extract VAT by sector.
Italian Self-Employed INPS Contributions Calculator
Calculate Italian INPS contributions 2026 for self-employed: Artigiani 24%, Commercianti 24.48%, Gestione Separata 35.03%/26.23%.
Italian Mortgage Interest Deduction Calculator
Calculate Italian 19% mortgage interest IRPF deduction 2026 for primary residence. Max 4,000 EUR interest, max benefit 760 EUR.
Italian Home Renovation Tax Credits Calculator
Calculate Italian home renovation tax credits 2026: Ristrutturazione 36%, Ecobonus 50-65%, Superbonus 65%, Mobili 50%, Sismabonus 50-85%.
Italian Regional and Municipal Surtax Calculator
Calculate Italian regional (1.23%-3.33%) and municipal (0%-0.9%) IRPF surtaxes 2026. Comparison across all 20 Italian regions.
Spanish IBI Property Tax Calculator
Calculate Spanish IBI 2026: Cadastral value × tax rate (0.4%-1.1%). Covers urban, rural and special properties.
Spanish Capital Gains Tax Calculator
Calculate Spanish capital gains tax 2026: progressive scale 19%-28% on stocks, funds and other capital gains.
Spanish Wealth Tax Calculator
Calculate Spanish wealth tax 2026. Madrid 100% bonus. Minimum exempt 700,000 EUR. Rates 0.2%-3.5% by region.
Spanish Inheritance and Gift Tax Calculator
Calculate Spanish inheritance and gift tax 2026: 4 kinship groups, multiplier coefficients and progressive state scale.
Spanish VAT Calculator
Calculate Spanish VAT 2026: general 21%, reduced 10%, super-reduced 4%, exempt 0%. Direct and inverse calculation by sector.
Spanish IRPF Withholding Tax Calculator
Estimate Spanish IRPF 2026 withholding on wages: includes work income reduction, personal and family minimum.
Spanish Housing Tax Deductions Calculator
Calculate Spanish IRPF housing deductions 2026: transitional regime 15%, energy efficiency 20%-30%, regional deductions.
Spanish Non-Resident Income Tax (IRNR) Calculator
Calculate Spanish IRNR 2026: 19% EU/EEA residents, 24% non-EU. Employment, rental, dividends and capital gains income.
Spanish Self-Employed RETA Contributions Calculator
Calculate Spanish self-employed RETA monthly contribution 2026: new income-based system with 15 brackets. Contribution rate 30.6%.
Spanish SL (Limited Company) Tax Calculator
Calculate Spanish corporate tax (IS) for an SL 2026: 25% general, 23% SME. SL vs self-employed comparison including dividends.
Spanish Regional IRPF Comparison Calculator
Compare regional IRPF quota by Spanish community 2026: Madrid, Catalonia, Andalusia, Valencia, Basque Country, Navarra, Galicia and Aragon.
Canton Zurich Tax Calculator
Calculate Canton Zurich taxes 2026: federal direct tax, cantonal and municipal tax with configurable Steuerfuss. Child deductions included.
Canton Geneva Tax Calculator
Calculate Canton Geneva taxes 2026: ICC (cantonal and communal tax) and federal direct tax. Child deductions and church tax included.
Canton Bern Tax Calculator
Calculate Canton Bern taxes 2026: federal, cantonal (factor 3.06) and municipal tax (configurable Steueranlage). Child deductions.
Swiss Real Estate Tax Calculator
Calculate Swiss real estate taxes 2026: transfer tax (0-3%) and annual property tax. 10 canton comparison. Imputed rental value.
Swiss Wealth Tax Calculator
Calculate Swiss wealth tax (Vermoegenssteuer) 2026. Canton comparison: Zug min 0.03%, Zurich max 0.075%, Geneva up to 0.25%.
Swiss AHV/IV/EO Social Insurance Calculator
Calculate Swiss AHV/IV/EO contributions 2026: AHV 8.7%, IV 1.4%, EO 0.45%, ALV 2.2%. Employees and self-employed. ALV ceiling CHF 148,200.
Swiss Inheritance Tax Calculator
Calculate Swiss inheritance tax 2026 by canton and kinship. Zug: no tax. Geneva: up to 54.5% for unrelated persons.
Swiss Stamp Duty Calculator
Calculate Swiss stamp duty 2026: Umsatzabgabe on securities (0.075%/0.15%), Ausgabeabgabe on equity (1%), insurance levy (2.5%/5%).
Swiss Patent Box Tax Regime Calculator
Calculate Swiss Patent Box tax savings 2026 (TRAF): up to 90% reduction on qualifying IP income. Nexus quotient and canton comparison.
Danish Personal Income Tax Calculator
Calculate Danish personal income tax 2026: AM-bidrag 8%, bundskat 12.09%, topskat 15% (income > 568,900 DKK) + variable kommuneskat for 10 municipalities.
Danish VAT Calculator
Calculate Danish VAT 2026: flat 25% rate. Add mode (net → gross) and extract mode (gross → net).
Danish Property Value Tax Calculator
Calculate Danish property value tax 2026: 0.51% up to 9,200,000 DKK, 1.4% above. Tax on assessed property value.
Danish ATP Pension Contribution Calculator
Calculate Danish ATP pension contributions 2026: 3 tiers based on weekly hours (18+, 9-17, <9). Employee and employer share.
Norwegian Step Tax Calculator
Calculate Norwegian step tax 2026: 4 brackets (1.7%/4%/13.4%/16.5%) + trygdeavgift 7.9%. Estimated monthly net income.
Norwegian VAT Calculator
Calculate Norwegian VAT 2026: 25% standard, 15% food, 12% transport/hotel. Add or extract VAT.
Norwegian Wealth Tax Calculator
Calculate Norwegian wealth tax 2026: bunnfradrag 1.7M NOK, municipal 0.7% + state 0.4% (extra 0.35% above 20M NOK).
Norwegian Youth Housing Savings Calculator
Calculate Norwegian BSU youth housing savings 2026: 20% tax deduction, max 27,500 NOK/year, 300,000 NOK total, under 34 years.
Finnish Income Tax Calculator
Calculate Finnish income tax 2026: 5 state tax brackets + kunnallisvero (municipal rate for 7 municipalities) + TV tax (0.64%, max 163 EUR).
Finnish VAT Calculator
Calculate Finnish VAT 2026: 25.5% standard, 14% food/restaurants, 10% books/medicine/transport. Add or extract.
Finnish Property Tax Calculator
Calculate Finnish property tax 2026: variable rate by property type (residential 0.41-2%, others 0.8-6%) set by each municipality.
Finnish Capital Income Tax Calculator
Calculate Finnish capital income tax 2026: 30% up to 30,000 EUR, 34% above. Tax on capital income (dividends, capital gains, rental income).
Swedish Employer Contributions Calculator
Calculate Swedish employer contributions 2026: total 31.42% with breakdown: alderspension 10.21%, sjukforsakring 3.23%, foraldraforsakring 2.80%, etc.
Swedish VAT Calculator
Calculate Swedish VAT 2026: 25% standard, 12% food/hotel, 6% books/transport/event tickets. Add or extract.
Swedish Capital Gains Tax Calculator
Calculate Swedish capital gains tax 2026: 30% on capital gains + ISK schablone comparison (0.888% of capital). Tax optimization Sweden.
Swedish ROT/RUT Household Deduction Calculator
Calculate Swedish ROT deduction (30% renovations, max 75,000 SEK) and RUT deduction (50% household services, max 50,000 SEK) 2026.
Polish ZUS Social Contributions Calculator
Calculate Polish ZUS contributions 2026: emerytalna 9.76%, rentowa 1.5%, chorobowa 2.45%, wypadkowa 1.67% + health contribution 9%. Estimated monthly net.
Polish VAT Calculator
Calculate Polish VAT 2026: 23% standard, 8% reduced, 5% basic food, 0% exports. Add or extract VAT in Polish zloty.
Polish Flat Tax (Ryczalt) Calculator
Calculate Polish flat tax (ryczalt) 2026: from 2% (agriculture) to 17% (creative professions). IT: 12%/14%. Applied on gross revenue.
Polish Corporate Income Tax Calculator
Calculate Polish CIT 2026: 9% for small companies (revenue ≤2M EUR/year), 19% standard. Corporate income tax for capital companies.
Czech Income Tax Calculator
Calculate Czech income tax 2026: 15% up to 1,582,812 CZK (36x average wage), 23% above. Without deductions (slevy).
Czech Social & Health Insurance Calculator
Calculate Czech contributions 2026: socialni pojisteni 6.5% employee + 24.8% employer and zdravotni pojisteni 4.5% + 9%. Total employer cost.
Czech VAT Calculator
Calculate Czech DPH 2026: 21% standard, 12% reduced (food, medicine, hotel). From 2024 simplified from 3 rates to 2.
Czech Self-Employed Contributions Calculator
Calculate Czech OSVC contributions 2026: socialni pojisteni 29.2% + zdravotni 13.5% on 50% of profit + income tax 15%/23%. Estimated net income.
German Parental Allowance Calculator 2026
Calculate German Elterngeld 2026: 65-67% of pre-birth net income, min €300, max €1,800/month. Compare Basis-Elterngeld vs ElterngeldPlus with PartnerschaftsBonus.
German Citizens Allowance Calculator 2026
Calculate German Burgergeld 2026 (ex Hartz IV): Regelbedarf €563 for single + KdU housing costs. Calculation for households with children by age group.
German Student Financial Aid Calculator 2026
Calculate German BAfoG 2026 for university students: max €992/month. 50% grant + 50% loan (max €10,010 repayable). Based on parental income and assets.
German Housing Allowance Calculator 2026
Calculate German Wohngeld 2026 (Wohngeld-Plus): rent subsidy for Mietstufe I-VII. Reformed in 2023 with tripled amounts. Calculation by household size and income.
German Short-Time Work Allowance Calculator 2026
Calculate German Kurzarbeitergeld 2026: 60% (67% with children) of net income difference. Enter gross salary, hours reduction percentage and family status.
UK Council Tax Calculator 2024/25
Calculate UK Council Tax 2024/25 for all bands A-H. Enter your council's Band D rate, apply the single person 25% discount and see monthly payments.
UK State Pension Calculator 2024/25
Calculate UK State Pension 2024/25 based on NI qualifying years. Full pension £221.20/week with 35 qualifying years. Minimum 10 years for any entitlement.
UK Salary Sacrifice Calculator 2024/25
Calculate UK Income Tax and NI savings from salary sacrifice 2024/25. Pension, Cycle to Work, childcare vouchers — see your real net cost and employer NI saving.
UK Marriage Allowance Calculator 2024/25
Check eligibility for UK Marriage Allowance: transfer £1,260 and save £252/year. Backdate up to 4 years for a potential £1,008+ refund.
UK Help to Buy ISA & LISA Calculator
Compare Help to Buy ISA and Lifetime ISA (LISA) for first-time buyers. 25% government bonus, LISA max £1,000/year. Calculate your total pot including bonus.
Dutch Mortgage Calculator
Calculate Dutch mortgage monthly payment with hypotheekrenteaftrek (mortgage interest deduction). Includes comparison with and without tax deduction.
Dutch VAT Calculator
Calculate Dutch BTW (VAT): 21% standard, 9% reduced, 0%. Bidirectional net/gross calculation for all Dutch VAT rates.
Dutch Healthcare Allowance Calculator
Calculate Dutch zorgtoeslag (healthcare allowance) 2026. Income limit single 37,496 EUR, partners 47,368 EUR. Max 131.83/251.33 EUR/month.
Dutch Inheritance Tax Calculator
Calculate Dutch erfbelasting (inheritance tax) 2026. Exemption partner 795,156 EUR, children 23,014 EUR. Rates 10%-40% progressive.
Dutch State Pension Calculator
Calculate Dutch AOW (state pension). 2% per year of residence, max 50 years. Single 1,459 EUR/month, partners 997 EUR each.
Dutch Freelancer Tax Calculator
Calculate Dutch freelancer (ZZP) taxes 2026. Zelfstandigenaftrek 3,750 EUR, MKB-winstvrijstelling 12.75%, ZVW 5.65%. Net from turnover.
Dutch Child Benefit Calculator
Calculate Dutch kinderbijslag (child benefit) 2026. Quarterly: 0-5 years 285.52 EUR, 6-11 years 346.23 EUR, 12-17 years 407.14 EUR.
Belgian Income Tax Calculator
Calculate Belgian IPP (income tax) 2026: 4 brackets 25%-50%, quotite exemptee 10,570 EUR, municipal surcharge. Includes net income calculation.
Belgian Social Security Calculator
Calculate Belgian ONSS (social security) 2026: employee 13.07% + progressive special contribution. Employer ~25%. Net from gross calculation.
Belgian Property Tax Calculator
Calculate Belgian property tax by region: Flanders 2.5%, Wallonia 1.25%, Brussels 1.25% on indexed cadastral income (RC). Provincial and municipal additions.
Belgian VAT Calculator
Calculate Belgian TVA (VAT) 2026: 21% standard, 12% (restaurants, coal), 6% (food, medicines, books). Bidirectional net/gross.
Belgian Flexi-Job Calculator
Calculate Belgian flexi-job net pay 2026: no employee ONSS, no income tax. Minimum hourly rate 12.08 EUR. Employer pays 25% ONSS.
Belgian Legal Pension Calculator
Calculate Belgian legal pension 2026. Formula: reference_salary x (years/45) x 60%/12. Max salary 65,874 EUR. Single vs family rate differences.
Belgian Inheritance Tax Calculator
Calculate Belgian inheritance tax by region 2026: Flanders 3%-65%, Wallonia 3%-80%, Brussels 3%-70%. Different brackets by heir relationship.
Austrian Income Tax Calculator
Calculate Austrian Einkommensteuer 2026: 7 progressive brackets from 0% (up to 12,816 EUR) to 55% (over 1,000,000 EUR). Effective and marginal rate.
Austrian Social Insurance Calculator
Calculate Austrian ASVG contributions 2026: KV 3.87%, PV 10.25%, UV 1.3% (employer only), AV 3%. Max basis 6,060 EUR/month. Employee and employer.
Austrian Child Benefit Calculator
Calculate Austrian Familienbeihilfe 2026: 138-200 EUR/month by age. Kinderabsetzbetrag 67.80 EUR. Mehrkindzuschlag for larger families.
Austrian Property Transfer Tax Calculator
Calculate Austrian Grunderwerbsteuer 2026: 3.5% + Eintragungsgebuehr 1.1% + Maklerprovision 3%. All transaction costs for property purchase.
Austrian VAT Calculator
Calculate Austrian Umsatzsteuer (USt/VAT) 2026: 20% standard, 13% (hotels, culture), 10% (food, books, medicines). Bidirectional net/gross.
Austrian Commuter Tax Relief Calculator
Calculate Austrian Pendlerpauschale 2026: small (public transport available) and large (no PT). Pendlereuro 2 EUR/km. Werbungskosten deduction for commuters.
Austrian Self-Employed Social Insurance Calculator
Calculate Austrian SVS contributions for self-employed 2026: KV 7.82%, PV 18.5%, UV 1.1%. Max basis 7,070 EUR/month. Annual reconciliation included.
Ireland Income Tax PAYE Calculator
Calculate Irish PAYE taxes 2026: Income Tax 20%/40%, USC 0.5%-8%, PRSI 4%. Personal and employee tax credits 1,875 EUR. Net income.
Universal Social Charge Calculator Ireland
Calculate Irish USC (Universal Social Charge) 2026: 4 bands 0.5%, 2%, 4%, 8%. Exempt under 13,000 EUR income. Effective rate calculation.
Pay Related Social Insurance Calculator Ireland
Calculate Irish PRSI 2026: employee 4%, employer 8.5%-11.1%. Weekly exemption threshold 352 EUR. Class A contributory social benefits.
Irish Stamp Duty Calculator
Calculate Irish Stamp Duty 2026: residential 1% (up to 1M EUR) / 2%, commercial 7.5%, buy-to-let/investment 10%. All property types.
Local Property Tax Calculator Ireland
Calculate Irish LPT (Local Property Tax) 2026: 32 value bands based on market value at 1 Nov 2021. Local authority adjustment up to +/-15%.
Capital Gains Tax Calculator Ireland
Calculate Irish CGT (Capital Gains Tax) 2026: 33% standard rate, 10% Entrepreneur Relief (max 1M EUR lifetime). Annual exemption 1,270 EUR.
Irish VAT Calculator
Calculate Irish VAT 2026: 23% standard, 13.5% reduced (construction/fuel), 9% hospitality (restaurants/hotels/newspapers), 0% food/books.
Australian GST Calculator 2025
Calculate Australian GST (Goods and Services Tax) 2025: flat 10% rate. Add or remove GST from any amount. GST-free and exempt supply reference guide.
Australian Superannuation Calculator 2025
Calculate employer Superannuation Guarantee (SG) at 11.5% and project your retirement balance at age 67 using a 7% annual return. Salary sacrifice tips included.
HECS-HELP Student Loan Repayment Calculator 2024-25
Calculate HECS-HELP compulsory repayment rates 2024-25: 1%-10% based on repayment income. Minimum threshold $54,435. Annual and weekly repayment amounts.
Australian Stamp Duty (Transfer Duty) Calculator 2025
Calculate stamp duty (transfer duty) for NSW, VIC, QLD, WA and SA. Includes first home buyer concessions and exemptions for 2024-25.
Australian Medicare Levy & Surcharge Calculator 2024-25
Calculate Australian Medicare Levy (2%) and Medicare Levy Surcharge (1%-1.5%) for those without private hospital cover earning above $93,000.
Portugal VAT Calculator 2026
Calculate Portuguese IVA (VAT) 2026: standard rate 23%, intermediate 13%, reduced 6%. Bidirectional calculation for mainland, Madeira and Azores.
Portugal Social Security (TSU) Calculator 2026
Calculate Portuguese TSU social security contributions 2026: employee 11%, employer 23.75%. Total 34.75% of gross salary. Full employment cost.
Portugal Property Tax (IMI) Calculator 2026
Calculate Portuguese IMI (property tax) 2026: 0.3%-0.45% rate on the patrimonial value (VPT). Owner-occupied exemptions and dependent reductions.
Portugal Property Transfer Tax (IMT) Calculator 2026
Calculate Portuguese IMT (property transfer tax) 2026: progressive rates 0%-7.5%. Stamp duty 0.8% included. Full exemption for first-time buyers under 35.
Portugal Capital Gains Tax Calculator 2026
Calculate Portuguese real estate capital gains tax 2026: 28% rate on 50% of gain (residents) or 100% (non-residents). Reinvestment exclusion and monetary coefficients.
Japan Consumption Tax Calculator 2026
Calculate Japanese consumption tax (消費税 shōhizei) 2026: 10% standard rate, 8% reduced rate for food and newspapers. National/local tax split. Invoice system guide.
Japan Social Insurance Calculator 2026
Calculate Japanese social insurance (社会保険) 2026: health insurance (4.985%), pension (9.15%), employment insurance (0.6%). Employee and employer split.
Japan Resident Tax Calculator 2026
Calculate Japanese jumin-zei (住民税 resident tax) 2026: 10% proportional levy (4% prefecture + 6% municipality) plus ¥5,000 per-capita levy. Based on prior year income.
Japan Furusato Nozei Calculator 2026
Calculate maximum deductible furusato nozei donation 2026. Effective personal cost only ¥2,000 regardless of amount. One-stop special system guide.
Japan Inheritance Tax Calculator 2026
Calculate Japanese inheritance tax (相続税) 2026: progressive rates 10%-55%. Basic exemption ¥30M + ¥6M per heir. Spousal deduction up to ¥160M.
Canadian GST/HST/PST Calculator 2025
Calculate GST/HST/PST for all Canadian provinces 2025: Ontario 13% HST, Alberta 5% GST only, Quebec 14.975%, BC 12%. All 13 provinces and territories.
Canadian CPP Contributions Calculator 2025
Calculate Canada Pension Plan contributions 2025: CPP1 5.95% up to $71,300 YMPE plus CPP2 4% on $71,300-$81,900. Employee and employer breakdown.
Canadian RRSP Tax Savings Calculator 2025
Calculate RRSP tax savings 2025: immediate tax refund by marginal rate, projected retirement balance. $32,490 contribution limit. RRSP vs TFSA comparison tips.
Canadian Property Transfer Tax Calculator 2025
Calculate land transfer tax for all Canadian provinces 2025: BC 1%-5%, Ontario 0.5%-2.5%, Quebec Welcome Tax. First-time buyer exemptions included.
Canadian Employment Insurance Premium Calculator 2025
Calculate Canadian EI (Employment Insurance) premiums 2025: employee 1.64%, employer 2.296% (1.4×). Maximum insurable earnings $65,700. Weekly benefit 55%.
French Housing Allowance APL Simulator 2025
Calculate French APL housing allowance 2025: rent, monthly income, household size, and zone. Estimate monthly CAF benefit based on official formula.
French Activity Bonus Prime d'Activité Calculator 2025
Calculate French Prime d'Activité 2025: monthly income and dependents. CAF formula: forfait amount - 60.8% of resources. Base €599.23 for single person.
French RSA Minimum Income Simulator 2025
Calculate French RSA minimum income 2025: household size and monthly resources. Base €635.71 for single. Estimate net RSA benefit after resource deduction.
French CNAV State Pension Calculator 2025
Calculate French CNAV state pension 2025: average annual salary, validated quarters, birth year. Full rate 50% at 172 quarters. Reduction 1.25%/missing quarter.
French Daily Sickness Allowance Calculator 2025
Calculate French CPAM daily sickness allowance 2025: gross monthly salary → IJ 50% of daily base. Social Security ceiling €3,864/month capped.
French Tax Credits Simulator 2025
Calculate main French tax credits 2025: childcare garde d'enfants 50%, energy renovation 30%, home employment 50%, charitable donations 66%.
UK Inheritance Tax IHT Calculator 2024/25
Calculate UK Inheritance Tax 2024/25: estate value, £325K nil-rate band, £175K residence nil-rate band. 40% rate on taxable estate above exemptions.
UK Working & Child Tax Credit Calculator 2024/25
Calculate UK WTC/CTC 2024/25: annual income, weekly hours, children, couple. Taper threshold £7,455. Basic, couple, 30-hour, childcare elements included.
UK SMP Statutory Maternity Pay Calculator 2025
Calculate UK SMP (Statutory Maternity Pay) 2025: weeks 1-6 at 90% of average weekly earnings, weeks 7-39 at £184.03/week flat rate. Total 39 weeks.
UK SSP Statutory Sick Pay Calculator 2025
Calculate UK SSP (Statutory Sick Pay) 2025: qualifying days, sick days, 3 waiting days. £116.75 per week, maximum 28 weeks. Employer paid.
UK CGT Capital Gains Tax Calculator 2024/25
Calculate UK CGT 2024/25: shares/other assets 10%/20%, residential property 18%/24% by income band. Annual Exempt Amount £3,000.
US Health Savings Account Tax Savings Calculator 2025
Calculate HSA tax savings 2025: individual $4,300 / family $8,550 limit. Triple tax advantage: federal + FICA 7.65% + state income tax savings.
US Flexible Spending Account Tax Savings Calculator 2025
Calculate FSA tax savings 2025: $3,300/year limit ($660 rollover). Pre-tax savings on federal, FICA 7.65%, and state income taxes.
US Property Tax Comparison All 50 States 2025
Compare property tax rates across all 50 US states. Calculate estimated annual and monthly tax. Rates from 0.27% Hawaii to 2.23% New Jersey.
US Social Security Break-Even Age Calculator 2025
Calculate Social Security break-even age: compare claiming at 62, 67 (FRA), and 70. Cumulative lifetime benefit comparison at ages 80, 85, 90.
US Medicare Part B and D Premium IRMAA Calculator 2025
Calculate 2025 Medicare Part B and Part D premiums including IRMAA surcharge. Base premium $185/month. Higher incomes pay up to $628.90/month.
India GST Calculator
Calculate Indian GST for all slabs: 0%, 5%, 12%, 18%, 28%. CGST+SGST intra-state or IGST inter-state. Inclusive and exclusive pricing supported.
India EPF Calculator
Calculate EPF contributions: 12% employee + 12% employer (3.67% EPF + 8.33% EPS). Projects retirement corpus at 8.25% EPF interest rate FY 2024-25.
India HRA Exemption Calculator
Calculate HRA exemption under Section 10(13A). Shows all 3 conditions, binding minimum, and annual taxable HRA. Metro (50%) and non-metro (40%).
India TDS Calculator
Calculate Tax Deducted at Source for all major sections: 194A interest, 194C contractor, 194H commission, 194I rent, 194J professional fees. Includes 4% cess.
India Professional Tax Calculator
Calculate state professional tax for all major Indian states. Maharashtra, Karnataka, West Bengal, Tamil Nadu, Gujarat and 10+ more states. Max 2500/year.
Brazil INSS Calculator 2024
Calculate progressive INSS social security contributions 2024: 7.5%/9%/12%/14%. Shows bracket breakdown, effective rate, and net salary. Ceiling R$7,786.
Brazil FGTS Calculator
Calculate FGTS balance: employer 8% monthly deposits, 3% annual growth, interest earned, and 40% multa on unjustified dismissal.
Brazil ICMS Calculator
Calculate Brazilian state VAT (ICMS) for intra-state (17-18%) and inter-state (7-12%). B2C DIFAL calculation. All 27 states. Por dentro (inclusive) pricing.
Brazil Simples Nacional Calculator
Calculate Simples Nacional effective tax rate for ME/EPP companies. All 5 Anexos: commerce (I), industry (II), services (III, IV, V). Revenue limit R$4.8M.
Brazil 13th Salary Calculator
Calculate Brazilian 13th salary (decimo terceiro): prorated gross, INSS deduction, IRRF tax, net amount, and 1st/2nd installment split. 2024 tables.
South Korea VAT Calculator
Calculate Korean VAT at 10% standard rate. Standard, zero-rated exports, exempt services. Add or remove VAT from any price.
South Korea National Pension Calculator
Calculate Korean National Pension: 4.5% employee + 4.5% employer = 9% total. Ceiling 5,900,000 KRW, floor 370,000 KRW (2024). Pension estimate.
South Korea Health Insurance Calculator
Calculate Korean health insurance: 3.545% employee + 3.545% employer = 7.09%. Includes long-term care insurance at 0.9182% of health premium.
South Korea Severance Calculator
Calculate Korean severance pay: 1 month average wage per year of service. Minimum 1 year eligibility. Tax estimate and net severance amount.
South Korea Property Tax Calculator
Calculate Korean property taxes: property tax (0.1%-0.4%) + urban/education/fire taxes + comprehensive real estate tax for assessed values above 900M KRW.
SQL to NoSQL Converter
Convert SQL schemas (CREATE TABLE) to MongoDB collections with JSON Schema validation. Embed-all, reference-all and smart strategies (embed 1-1, reference 1-N).
Data Faker Generator
Generate realistic test data: Italian names, emails and addresses, phone numbers, UUIDs, dates, companies. Export as JSON, CSV and SQL INSERT with table preview.
CSV to SQL Converter
Import CSV data and generate CREATE TABLE + INSERT INTO with automatic type detection. PostgreSQL, MySQL, SQLite support. Configurable batch inserts and column selection.
Italian Flat-Rate VAT Calculator
Simulate taxes, INPS contributions and annual net income under the Italian flat-rate VAT regime 2026. Comparison with employee income and downloadable PDF guide.
EU AI Act Self-Assessment Tool
5-step wizard to self-assess your AI system risk level under Regulation (EU) 2024/1689. Annex III classification, compliance gap analysis, GPAI obligations and downloadable report. Deadline: 2 August 2026.
AI Act Risk Checker
Interactive quiz classifying your AI system by risk level under the EU AI Act (Minimal/Limited/High/Unacceptable). Obligations, timeline and downloadable checklist.
CSRD Double Materiality Calculator
Calculate ESG double materiality under ESRS (EU Reg. 2023/2772) for CSRD reporting. 3-step E/S/G wizard, interactive matrix, recommended disclosure requirements and downloadable Markdown report. For Italian SMEs 250+ employees.
CreatorTax Pro
Bundle for Italian creators: flat-rate VAT + AI Act risk + mixed revenue streams (AdSense, affiliate, courses, KDP ebooks). Recommended accountants and EU neobank partners.
AI Code Review Pro
AI-assisted code review: anti-patterns, security issues and performance problems detected before push. TypeScript, Python, Java, Go, Rust, PHP, C# support.
Bulk UUID / ULID Generator
Generate up to 1000 UUID v4, UUID v7 (timestamp-ordered) or monotonic ULID in one click. CSV, JSON and plain text export.
Favicon Set Generator
Generate a complete favicon set (16/32/48/180/192/512px) from text or emoji. Client-side Canvas rendering, HTML link tags ready to paste.
SemVer Calculator
Enter current version and commit type (feat/fix/breaking) to get next SemVer, git tag and changelog stub.
Bulk IBAN Validator
Validate multiple IBANs at once (one per line). MOD-97 check, country code and length validation. Results table + CSV export.
Advanced Timestamp Converter
Convert between Unix timestamp, ISO 8601, RFC 2822 and relative dates ("3 days ago"). IANA timezone selector + DST info included.
CSS Unit Converter
Convert between px, rem, em, vh, vw, pt, pc and %. Configurable root font-size and viewport. Copy button for each unit.
Typography Scale Generator
Generate h1–h6 scales with Major Third, Perfect Fourth, Golden Ratio and more. Export CSS variables, Tailwind config or JS object.
Italian Car Insurance Comparator 2026
Estimate 2026 Italian car insurance premiums for 8 insurers (UnipolSai, Generali, Allianz, Genertel, Linear, ConTe, Direct Line, Quixa). Calculation by province, BM class, age, km/year, power and claims. Free, client-side, no tracking.
Italian ISEE Calculator 2026 — Benefit Eligibility
Calculate Italian ISEE 2026 with official formula. Check eligibility for Assegno Unico, nursery bonus, energy bonus, ADI and university discounts.
Mortgage vs Rent — Total Cost of Ownership
Compare total cost of mortgage purchase vs renting over 10-30 years. Includes mortgage TCO (payments + IMU + maintenance + insurance) and rent TCO with inflation.
Italian Renovation Bonus Checker 2026-2027
Calculate renovation deductions: 50%→36% renovation bonus, Ecobonus, Sismabonus 70-85%, facade and home automation bonuses. Updated for 2025 Budget Law.
Italian Flat Tax vs Ordinary Regime Comparator 2026
Compare Italian flat tax (15%/5% startup) vs ordinary IRPEF regime 2026. Net income, INPS contributions, fiscal pressure and 5-year projection with 5%→15% transition. Updated Finance Act 2025.
Italian Medical Deductions — 19% Tax Credit
Calculate 19% IRPEF tax credit on medical expenses: prescription drugs, specialist visits, NHS tickets, prosthetics. Automatic €129.11 deductible. 730 form guide.
Italian Withholding Tax Calculator 2026
Calculate Italian withholding tax for self-employment (20%), copyright (20% on 60-75%) and agents (4%). Includes INPS separate management 26.07%.
IRPEF vs Flat Tax on Rentals 2026
Compare ordinary IRPEF taxation with flat tax (21% free market or 10% agreed rent) on Italian rental income. 10-year cash-flow included.
Italian Energy Complaint Generator ARERA
Generate ARERA-compliant formal complaints for electricity and gas (Del. 413/2016/R/com). Wrong billing, supply interruption, unauthorized offer changes. Utility PEC included.
Sport Intelligence Platform
Football predictive analytics platform: 5-base ML ensemble (CatBoost+LightGBM+PyMC+Elo+Dixon-Coles) on 97k+ historical matches from 40 leagues, 26 countries. Value detection with Kelly+Shin, slip optimizer K≤4. ADM responsible gaming disclaimer included.
BMI + Waist-to-Height Ratio
Calculate BMI and waist-to-height ratio (WHtR) with WHO 2024 classification. Assess cardiovascular risk based on abdominal fat distribution.
Sleep Quality Scorer (PSQI)
Calculate your Pittsburgh Sleep Quality Index (PSQI) on a 0-21 scale. Get sleep quality category and 3 personalized tips.
Daily Nutrition Macro Tracker
Track protein, carbs, fat and fiber. Calculate total kcal and compare with EFSA DRV values. Alerts for deficit and surplus.
Daily Caffeine Intake Calculator
Calculate cumulative caffeine mg from espresso, tea, energy drinks and cola. Check FDA limits (≤400 mg/day) with 5-hour half-life countdown.
Daily Water Intake Goal
Calculate daily water requirement (35 ml/kg base + activity bonus). Get an hourly schedule every 90 minutes.
Menstrual Cycle Predictor
Predict the next 6 cycles and calculate fertile days with Knaus-Ogino method (ovulation = LMP+14, fertile window LMP+10..LMP+17).
TDEE & Fitness Calorie Goal Calculator
Calculate TDEE with Mifflin-St Jeor formula. Set goal (loss/gain/maintain) and get target calories with macros split.
Hydration Reminder
Set automatic reminders to drink water with browser notifications. Personalized schedule saved in localStorage.
Travel Insurance Selector
Compare estimates from 6 providers (Allianz, Heymondo, Coverwise, Zurich, SafetyWing, Genialloyd). Filter by destination, duration, age and coverage.
Air Quality Today — Italian Cities
PM2.5, NO2 and O3 with 24h hourly chart and WHO risk level for Italian cities. Recommendations for outdoor activities.
Travel Budget Calculator
Estimate budget for 50 world cities with accommodation/food/transport/activities breakdown. Compare with similar destinations in the same region.
Film Finder — Find the Perfect Movie
7-step wizard: group, mood, duration, age rating, excluded genres, streaming providers. Top 5 personalized film recommendations.
Movie Watchlist
Manage your to-watch, watched and wishlist movies. Data saved in browser with status filter.
Film Recommendation Engine (AI)
Enter a movie you loved and get top-10 similar films with explanation cards via Ollama AI on-premise. Add to watchlist.
EUDI Wallet Integration Tester
Test EUDI Wallet integration (eIDAS 2.0) with JWT VC validator + mDoc decoder + OAuth flow simulator. IT Wallet bridge for Spring Boot/Node developers.
FSE 2.0 Document Validator
CDA L3 validator for Italian Electronic Health Records (FSE 2.0) + INI Gateway simulator for healthcare developers. PNRR mission-critical.
NIS2 Asset Inventory Mapper
Asset catalog (apps, DB, cloud, infra) with NIS2 risk mapping and PDF compliance report export. For Italian IT managers with 2026 deadline.
Italian Tax Deadline Calendar (iCal)
Personalized ICS calendar by role (freelancer, flat-rate VAT, employee, SME) with Italian tax deadlines (730, VAT, IRAP, INPS, F24, IMU).
Italian Tax Return Helper AI
Describe your fiscal situation in natural language and AI extracts the Italian 730/Redditi PF fields. Validation + ambiguous field detection. Privacy: on-prem Ollama.
Italian Tax Code Explainer AI
Decode Italian fiscal code (birth date, municipality, gender, omocodia) with AI narrative explanation. Privacy: all on-prem via Ollama.
Expense Forecaster AI
Upload transaction CSV and get 3-month forecast (Prophet) + anomaly flags (IsolationForest) + AI savings narrative. Privacy: on-prem Ollama.
Recipe from Fridge AI
Upload a fridge photo: llava:7b detects visible ingredients and suggests 3 Italian recipes with step-by-step instructions. On-prem, privacy-first, 10 analyses/day free.
SEO Content Cluster Builder AI
Keyword seed generates semantic clusters of 50 keywords + intent classification + article outlines + suggested internal linking from existing 702 articles.
EU AI Act Deadline Tracker
Live countdown to EU AI Act deadlines: 2 August 2025 (GPAI + transparency), 2 August 2026 (Annex III high-risk). Filter by role provider/deployer/distributor. Export deadlines as ICS calendar file.
GDPR Art. 25 — Privacy by Design & by Default Checker
Evaluate GDPR Art. 25 compliance: Privacy by Design and by Default. 8-dimension checklist, weighted score 0-100, prioritised recommendations and markdown report. Client-side only.
EU Startup Runway Calculator
Calculate your EU startup cash runway over 24 months: compound MRR growth, fixed + variable burn, recoverable VAT, fiscal deadlines for IT/DE/FR/ES/UK/NL. Tabular forecast + burn vs cash chart. Free, 100% client-side.
LLM Cost Optimizer — TCO Multi-Provider
Calculate the monthly and annual TCO of an LLM workload across 8 cloud providers (GPT-5, Claude, Mistral, DeepSeek, Gemini) vs Ollama on-prem on Hetzner CCX13. Break-even analysis with compound growth. Client-side only.
Synthetic Data Generator
Generate synthetic datasets from JSON Schema with built-in Italian Faker: names, addresses, codice fiscale, partita IVA. Export to JSON, CSV or SQL. 100% client-side, no LLM, no data sent to server.
Sleep Score Calculator
Calculate your Sleep Score 0–100 based on Huberman Lab protocols: sleep duration, latency, awakenings, subjective quality, schedule regularity, morning sunlight and caffeine cutoff. Evidence-based personalised recommendations. Free, client-side, no device required.
Multi-Model Token Counter
Count tokens and estimate USD cost for 9 LLM models (GPT-5, Claude, Llama 3, Mistral, DeepSeek, Gemini) side-by-side. Client-side, no install, multilingual. Estimate ±10% vs official tokenizer.
RAG Chunking Visualizer
Compare 8 RAG chunking strategies side-by-side: fixed-size, sentence, paragraph, recursive, semantic-cosine, sliding-window, markdown-header, semantic-token-bucket. Jaccard similarity heatmap included. 100% client-side, zero data sent.
Huberman Protocol Tracker
Track 22+ evidence-backed Huberman Lab protocols (sleep, focus, mood, exercise, stress). 100% local privacy with IndexedDB, zero server. Free vs Huberman Companion App ($13/month).
Equity Dilution Simulator — Cap Table Multi-Round
Simulate founder equity dilution across multiple VC rounds (Pre-Seed, Seed, Series A-D, IPO). Advanced broad-based weighted average and full-ratchet anti-dilution. Pre-money ESOP pool top-up. Free, 100% client-side. USP: EU-aware + advanced anti-dilution + multilingual vs Capshare/Carta paid.
Cap Table Stress Test — Down Round, Liquidation, Full Ratchet
Stress test your cap table on adverse scenarios: down round −50% of peak, liquidation preference 1x/2x/3x non-participating and participating, full ratchet anti-dilution, exit at percentage of peak. Payout waterfall, post-stress ownership, per-scenario verdict. Free, 100% client-side, EU-specific.
VC Cold Email Crafter — EU Fundraising Outreach
Generate personalised cold emails for top EU VCs. DB 50+ EU funds (Index, Atomico, Speedinvest, P101, Earlybird...) with stage/sector/portfolio data. On-prem Ollama AI: your idea never leaves the server. USP vs Lemlist/Mailshake: VC-focused EU + Italian + integrated DB + on-prem privacy.
Longevity Bloodwork Interpreter
Interpret 30+ blood markers with Peter Attia's "longevity-optimal" ranges (more stringent than clinical standards). ApoB, Lp(a), HbA1c, Insulin, hs-CRP, Vitamin D, Testosterone and more. Free preview + premium report. On-prem privacy: data never sent to server (ADR-T2). USP vs InsideTracker: EU-aware + Italian + documented sources.
Workout Periodization Planner
Plan your training cycle with Block (Galpin-style), DUP or Conjugate periodization. Set/rep/RPE automatically adapted to goal (strength/hypertrophy/endurance), level and 1RM. Free vs RP/SBS paid. Client-side, multilingual.
Mole ABCDE Checker
Preliminary educational skin lesion screening using the ABCDE rule (Asymmetry, Border, Color, Diameter, Evolving). Upload a photo, receive indicative flags per criterion. Powered by llava:7b (Ollama on-prem VPS). ZERO photo storage. ABCDE flags are indicative — NOT a diagnosis. Mandatory medical-legal disclaimer. Links to AAD/AIRC. Free.
Solar ROI EU Calculator
Calculate the ROI of your solar PV system in 8 EU countries (IT, DE, FR, ES, NL, UK, PL, AT). Production from PVGIS JRC, updated 2026 feed-in tariffs and incentives, payback years, 25-year NPV at 4%, IEC 61215 panel degradation. Free, 100% client-side. USP vs PVWatts (US-only): cross-country EU + Italian + localised incentives.
Carbon Footprint Calculator — Individual + Company
Calculate your annual carbon footprint (tCO2e): car, flights, energy, food, waste. Hybrid individual + company mode. DEFRA UK 2026 + ISPRA IT coefficients. Comparison vs Italian average 5.4 tCO2e/year. USP vs WWF/Carbonfact: hybrid individual+company + IT-aware + EU-aware + open-source coefficients.
Learning Path Generator — Personalised Tech Roadmap
Generate a personalised learning roadmap for 12 topics (AI Engineering, Spring Boot, Angular SSR, Clean Architecture, RAG, ML Engineering, Founder Skills, Longevity, EU AI Act, Sovereign AI, Vibe Coding, Italian LLM). Adaptive for hours/week and level. KB-driven (Karpathy, Huberman, YC). Free, 100% client-side. USP vs roadmap.sh: dynamic + Italian + time-aware + real KB resources.
KB Course Recommender
Free KB-driven course recommender: enter your learning goal and get KB videos (~6k episodes Lex Fridman/Karpathy/YC/Huberman), Federico's blog articles, free courses (Coursera audit, fast.ai, MIT OCW, Karpathy Zero-to-Hero, CS50) and companion dev-tools. Free alternative to Coursera and Udemy. Ollama on-prem AI.
VPS Hetzner Cost Calculator — Workload-driven CCX Selector
Workload-driven cost calculator for Hetzner VPS: enter RPS target, app RAM, storage GB and LLM models to host (llama3.1:8b, qwen2.5:7b, mistral:7b) and get the recommended CCX tier (CCX13/CCX23/CCX33/CCX43) with monthly/annual cost. Compare vs AWS t3 and equivalent DigitalOcean. Client-side only, no login.
Self-Hosted LLM Benchmark — Live Ollama VPS Dashboard
Live dashboard with real-time Ollama llama3.1:8b metrics on Hetzner CCX13 VPS: tokens/sec throughput, p50/p95/p99 latency, RAM/CPU utilization, 24h request count. Cost comparison vs OpenAI GPT-4o, Claude, Gemini, Mistral: up to €427/month savings. Proves the self-hosted AI stack on a real VPS. Auto-refresh every 30s.
Prompt Eval Harness — LLM A/B Test On-Prem
A/B test prompts for LLMs via Ollama on-prem. Evaluate up to 20 prompts × 3 models (LLaMA 3.1 8B, Qwen 2.5 7B, Mistral 7B) with a results matrix: latency, token count, binary keyword-match score. Privacy guaranteed — no data sent to the cloud. USP vs LangSmith/Helicone/Promptfoo: on-prem + multilingual + Italian + €0 cost.
Board Deck Generator
Generate a professional board deck in 4 steps: 12 YC-style structured slides (cover, agenda, KPIs, financials, product, team, wins, issues, asks, next quarter, risks, Q&A). Ollama on-prem AI for narrative enrichment, deterministic YC template fallback when AI unavailable. Markdown export. Free vs Pitch.com / Visible.vc paid. Privacy: company data not persisted server-side.
LLM Faithfulness Checker — RAG Hallucination Detection
Checks how faithfully an LLM answer reflects the provided source documents. Extracts factual claims from the answer, verifies each against sources via Ollama llama3.1:8b, and returns a 0-1 faithfulness score with annotated claims (supported / partial / unsupported / contradicting + evidence quote). Ideal for RAG pipeline debugging. Graceful degrade when Ollama is unavailable. 10 free checks/day/IP. No data stored. USP vs Galileo/Patronus/Ragas: on-prem Ollama, GDPR-safe, zero cost, no account required.
Food Photo Calorie Estimator
Photograph your plate and get an estimate of calories, protein, carbohydrates, and fat via on-prem AI vision (llava:7b Ollama VPS). Accuracy ±30%. No photos stored — privacy guaranteed. 10 free estimates/day/IP. Medical disclaimer: NOT for medical dietary decisions.
CGM Analyzer — Continuous Glucose Monitor Data Analysis
Analyse your CGM data (Levels Health, Veri CGM, Abbott FreeStyle Libre) entirely in the browser — zero server upload. Computes mean glucose, SD, GMI (Bergenstal 2018), Time in Range 70-140 mg/dL, MAGE (Service 1970) and post-meal spikes. SVG 24h glucose profile chart with ADA 2019 target band. USP vs Levels/Veri (€30-50/mo): free + EU-first + deep offline analysis + privacy-first (data never leaves the browser).
Italian Equity Stock Tax 2026 — ISO/NSO/RSU + Capital Gain
Compute Italian equity taxation (ISO/NSO stock options + RSUs) for startup and scaleup employees: marginal IRPEF at vesting/exercise, 26% capital gain at sale, innovative startup exemption (art. 27 DL 179/2012). 2-step wizard, phase breakdown (grant/exercise/sale), CSV export.
EU Startup Tax Credit 2026 — R&D + STEM Super Deduction
Compute tax incentives for Italian Innovative Startups and SMEs: 50% R&D tax credit (cap €5M/year), 130% STEM hire cost super deduction, capital gain exemption for investors holding >3 years. 3-step wizard, RI special section checklist, unavailable benefits list.
Italian Synthetic Tax Assessment Risk Flag 2026
Educational tool to assess Italian synthetic tax assessment risk (former redditometro): compares declared IRPEF income vs reconstructed spending (properties, vehicles, travel, household). Output green/yellow/red flag with 10%/20% thresholds (DPR 600/1973 art. 38), SVG gauge and dynamic recommendations.
EU Vehicle Tax 2026 — Multi-Country Comparator
EU multi-country vehicle tax calculator for passenger cars: IT, DE, FR, ES, NL, BE, CH. Official 2026 rates (ACI/BMF/DGFIP/AEAT/MRB/SPF/StVA), Euro class handling, kW/HP, Italian regions, EV/historic exemptions. Sortable comparator + breakdown + IT superbollo.
Italian Charity Donations Tax Deduction 2026
Compute Italian charity donation tax deduction for 8 entity categories: Onlus, ETS, APS, Political Parties, Scientific Research, Universities, Cultural Heritage, Ecclesiastical Entities. Updated TUIR + D.Lgs. 117/2017 + L 96/2012 rates, caps and tax codes. IRPEF capacity check.
Macro Calculator — Galpin Precision Macros (Huberman ep#41)
Compute macronutrients with Andy Galpin precision methodology (Huberman Lab ep#41 + ISSN 2007): 1g protein/lb LBM (vs RDA 0.8g/kg), Mifflin-St Jeor TDEE, 0.4g/lb fat floor, residual carbs (4g/kg endurance athletes). Imperial/metric toggle, 5 activity levels, 3 goals (cut/maintain/bulk), inline SVG pie chart, RDA vs Galpin comparison.
AI Agent Trace Viewer — Multi-Format Inspector
Multi-format AI agent trace inspector (LangChain, CrewAI, AutoGen, OpenAI Assistant). Upload trace JSON, tree visualization of steps (LLM call / tool call / observation / decision), per-node drill-down, latency/cost stats. 100% client-side, privacy-first.
Embedding Visualizer 2D/3D — UMAP/t-SNE/PCA
Visualise precomputed embeddings or generate from text via on-prem Ollama (local Hetzner) with UMAP, t-SNE or PCA dimensionality reduction. Inline SVG 2D or Three.js 3D rendering. JSON/CSV upload, visual cluster detection, image export.
AI System Prompt Analyzer — Score 0-100 + Rewrite
Analyse LLM system prompt quality based on Anthropic prompt engineering guide + OpenAI cookbook. 7 checks (role, format, examples, edge case, safety, length, clarity), weighted 0-100 score, severity-ranked issue list + suggested rewrite skeleton. Pure client-side.
Vector DB Schema Designer — RAG cross-DB
Cross-vector-DB schema generator for RAG. Pick embedding model (12 options: MiniLM, MPNet, OpenAI ada-002, Cohere multilingual, Voyage, BGE etc.), chunking strategy, target vector DB (Redis Stack HNSW, Qdrant, Weaviate, Pinecone, Postgres pgvector, Milvus). Output: DDL/JSON schema + index params + Hetzner cost estimate.
SLM Picker — Hetzner CCX + EU Languages
Filter open-weight Small Language Models (≤32B params) by Hetzner CCX size + EU languages + use case. 18 models updated 2026 (Llama-3.x, Mistral, Mixtral, Qwen2.5, Gemma-2, Phi-3, DeepSeek-V2, Aya, CroissantLLM). Ranked output with VRAM/RAM, t/s throughput per CCX, license, fine-tuning support, maturity score.
Founder Mental Health Tracker — Privacy-First
Mental health tracker for founders. Privacy-first IndexedDB only — data NEVER leaves the browser. Daily tracking (mood, stress, sleep, exercise, screen time, social, journaling), 30-day trend chart, correlation insights and Huberman protocol recommendations. Educational, not a therapy substitute.
SaaS Pricing Page Audit — 32 Checklist
Audit checklist and scoring for SaaS pricing pages based on ProfitWell, Price Intelligently, MicroConf best practices. 32 items across 6 sections (Structure, Value, Social Proof, Conversion, Psychology, Trust). Score 0-100 + section breakdown + top-quartile benchmark + prioritised recommendations.
Caffeine Timing Optimizer — Huberman + Pharmacokinetics
Optimal caffeine timing calculator based on Andrew Huberman + adenosine pharmacokinetics. Input wake/bedtime, tolerance, weight, beverage (espresso/cold-brew/matcha/yerba-mate). Output: first coffee time, cutoff, plasma concentration SVG curve (Bateman equation), Huberman afternoon test protocol.
Fantacalcio Optimizer 2026 — Serie A Greedy + Constraint Solver
Italian Fantacalcio Serie A 2026 squad optimiser. Greedy + back-tracking solver with role constraints (3P-8D-8C-6A) and €500 budget. 80+ top-quote players (Lautaro, Vlahovic, Leao, Yildiz, Maignan etc.), risk profile (conservative/balanced/aggressive), 4-3-3/4-4-2/3-5-2/3-4-3 formations, Classic/Mantra scoring. Ranked output + per-slot alternatives.
Spaced Repetition Scheduler — SM-2 + Huberman Timing
Spaced-repetition scheduler based on SM-2 algorithm (SuperMemo) + Huberman timing protocols. Privacy-first IndexedDB only — data NEVER leaves the browser. 3 tabs (Add/Review/Stats), 5 grade buttons (red→green), calendar heatmap, retention curve, JSON export, CSV import.
Pro Athlete Stats Analyzer — Multi-Sport Comparator
Multi-sport analyser and comparator for 80+ professional athletes (Football, NBA, Tennis, F1, Cycling, Track). Compare 2-4 athletes on career arc, peak years, longevity, comparable era. Inline SVG radar chart, cross-era insights, peak overlap detection. Static Wikipedia/Wikidata aggregated dataset.
YouTube Lecture Summarizer — Ollama On-Prem
Summarises YouTube lectures using on-prem Ollama (Hetzner VPS local). Server-side pipeline: extract transcript → chunk → summarize via llama3.1:8b → output. Privacy-first: transcript never sent to third parties. Output: summary + key takeaways + clickable timestamps + concepts. 3 lengths (200/500/1000w), IT/EN.
Bootstrap vs VC Decision Tool — Founder Scoring
Bootstrap vs Venture Capital decision framework for founders. 0-100 weighted scoring across 8 dimensions (stage, market, growth, ambition, moat, capital intensity, equity tolerance, time-to-revenue). Output: bootstrap/vc/hybrid/reconsider verdict, rationale, red flags, recommendations. KB cluster Marcello Ascani S2 + YC + TWiST + Calacanis.
Vibe Coding ROI Estimator — AI Dev Tools
ROI calculator for AI-assisted development (Cursor, Claude, GitHub Copilot, Codex). Input: team size, dev avg salary, task distribution (greenfield/maintenance/refactor/code-review/docs), tool subscription cost, expected velocity multiplier. Output: yearly ROI + payback period + saved hours by task type. KB cluster Marcello Ascani S5 AI engineering.
Italian Unicorns Timeline — 25 IT Startup
Interactive timeline of Italian unicorns (valuation > $1B). 25 IT startups (YOOX, Nexi, Bending Spoons, Satispay, Scalapay, Translated, Casavo, Eataly, Brumbrum, Talent Garden etc.). Filter by sector, founded year, unicorn status year, status (private/IPO/exit/fallen). KB cluster Marcello Ascani S1 Italians SV.
LLM Cost per Output Calculator — 12 Models 2026
Per-output type cost calculator (chat reply, RAG, summarization, code-gen, agent-loop, embeddings, classification). 12+ models updated 2026 (GPT-5, Claude Sonnet 4.6, Gemini 2.5, DeepSeek-V3, Qwen2.5, Mistral Large 2, Ollama llama3.1:8b on-prem €0). Cost/day + cost/month + unit cost + provider comparison. Series 33 FinOps AI.
EV Charging Route Planner — Multi-Country EU
EU multi-country EV route planner (IT, DE, FR, ES, AT, CH). 15 models (Tesla Model 3/Y, BMW i4/iX3, Audi Q4, Mercedes EQS, VW ID.4, Renault Megane/Zoe, Hyundai Ioniq 5, Kia EV6, Polestar 2 etc.) + 30 pre-calculated city distance pairs. Output: charging stops + time + cost + operator recommendation (Ionity/EnelX/Tesla). Static dataset, no live API.
SAFE vs Convertible Note — Founder Comparator
SAFE (Y Combinator) vs Convertible Note comparator for early-stage fundraising. Input: round size, valuation cap, discount, interest rate (CN only), MFN clause. Output: 10-aspect comparison table (legal complexity, interest, maturity, MFN, pro-rata, IRS, accounting, foreign investors), dilution simulator at conversion + situational recommendation. KB YC + TWiST.
LoRA Adapter Config — Fine-Tuning HF PEFT
LoRA/QLoRA fine-tuning configuration lookup for LLMs. Input: base model (Llama-3.1-8B/70B, Mistral-7B, Qwen2.5-14B, Gemma-2-9B), task type (instruction-tuning, domain adaptation, code, reasoning, multilingual), VRAM, dataset size, quantization (fp16/qlora-4bit/qlora-8bit). Output: r, alpha, target modules, learning rate, batch size, ready-to-use Hugging Face PEFT JSON config. KB Karpathy LoRA paper.
Cold Plunge ROI — Huberman + Søberg Protocol
Cold plunge / cold immersion ROI calculator. 4 setups (homemade barrel €200 / Plunge Pro €5k / Morozko €15k / public pool per-session). Output: cost/session + cost/year + payback + evidence base (Huberman ep#66, Søberg 2021 11min/week, Tipton 2017). 4 use cases (athletic recovery / mood / general wellness / brown-fat metabolic). Educational, medical disclaimer.
LLM Faithfulness Checker — RAG Groundedness
Verifies LLM output faithfulness vs context (RAG groundedness). Jaccard overlap heuristic + numeric contradiction detection + unanchored key terms. 0-100 score, sentence-level breakdown (supported/unsupported/contradicted), evidence spans. RAGAs, TruLens, DeepEval, Anthropic citations frameworks.
VO2max Estimator — Attia Longevity Range
5-method VO2max estimator (Cooper 12-min, Rockport 1-mile walk, Queens College Step, Uth-Sørensen HR, marathon time). Output: VO2max ml/kg/min, age-stratified ACSM percentile, Attia "longevity-optimal" top quartile range, Zone 2 cardio Huberman target HR.
Endurance Periodization — Polarized/Pyramidal/Threshold
8-16 week endurance periodization plan generator (running/cycling/triathlon). 3 methodology comparison (Polarized 80/20 Seiler, Pyramidal, Threshold). Output: phase split (base/build/peak/taper), weekly volume, Z1-Z5 HR zone distribution, detailed sessions.
Acqui-hire vs Acquisition — Founder Decision
Acqui-hire vs strategic acquisition decision framework for startup founders. 7 inputs (stage, team, ARR, product, strategic value, retention, vesting). Output: 2 scores 0-100, verdict, recommended deal structure (cash/stock/earnout/retention), IT (TUIR art.67, PEX) + US (§1202 QSBS, §351, §368) tax implications.
Fusion Energy Timeline Tracker — 25 Global Projects
Timeline tracker for 25 worldwide fusion energy projects: ITER, JET, NIF (Q=1.54 ignition 2022), Wendelstein 7-X, EAST, KSTAR, Commonwealth Fusion SPARC, TAE, Helion, Tokamak Energy, ENI-MIT, Type One Energy, Marvel Fusion. Filter by country/approach/funding/milestone. KB Lex Fridman + Dwarkesh chips.
Programming Tutorial Grader — 24-Item Karpathy Rubric
Karpathy "Zero to Hero" rubric grader for programming tutorials. 24 checklist items across 7 dimensions (scope, prerequisites, runnable code, depth, theory-practice, exercises, updates). 0-100 score, weakest dimensions, top 5 suggestions, benchmark vs top tutorials (Karpathy 95, freeCodeCamp 80).
Notes Quality Scorer — Zettelkasten/BASB Audit
Notes quality scoring on 7 evidence-based metrics (Zettelkasten Luhmann + Building a Second Brain Tiago Forte + How to Take Smart Notes Ahrens): atomicity, connectedness, completeness, clarity, actionable, evidence, review. 6 templates included (Cornell, Permanent, BASB Capture, Literature, Meeting, Fleeting).
Live Site Performance — Browser CWV Estimator
Live Core Web Vitals (LCP/INP/CLS/FID/TTFB) estimator using Browser Performance API (no PageSpeed Insights). Loads target URL in sandbox iframe, extracts PerformanceTiming if same-origin, approximate fallback if SAMEORIGIN/CSP. Google CWV 2026 thresholds + Lighthouse-aligned recommendations + bundle size estimate.
Stack Architecture Visualizer — 8 Templates + Cost
8 stack architecture templates (MERN, MEAN, T3, Django+Postgres, Spring+Angular, FastAPI+React, MLOps, Rails+Hotwire) with inline SVG diagram + JSON spec + ADR rationale per layer + self-host Hetzner CCX vs cloud AWS cost estimate. Layer-by-layer customization (frontend/backend/db/cache/queue/cdn/auth/observability).
Active Insurance Risk Scoring — Telematic/IoT/Cyber
Dynamic risk scoring for active insurance (telematic auto, IoT health, cyber, home-IoT, commercial property). Input: customer profile + 6 behavioral signals (driving, lifestyle, security, prevention, claim history, engagement). Output: 0-100 risk score, capped premium delta % (-40/+50%), signal contributions, mitigation recommendations.
Italian Family Business Tracker — 25 PMI
25 Italian family businesses: Ferrero (3rd gen, €15B), Lavazza (4th gen), Barilla (4th, €4.7B), Esselunga (€9B), Benetton, EssilorLuxottica (€25B), Prada, Armani, Campari, Calzedonia, Pirelli, Ferragamo, Mapei, Bracco, Cucinelli, Mutti, Eataly. Filter by sector/generation/listing/succession status.
IPO Readiness Score Italian SME — EGM/MTA Wizard
Italian Borsa EGM (ex-AIM)/Euronext MTA IPO readiness 5-step wizard. Input: revenue, growth, EBITDA, audit history, governance (BoD, independents), reporting maturity, ESG, market positioning. Output: 0-100 score, verdict (3-6m/6-12m/12-18m), gap analysis, roadmap, €200-500k advisory cost estimate.
Falco Container Security Demo — CNCF Runtime
CNCF Falco runtime security educational demo (Sysdig / Loris Degioanni). 5 alert scenarios: privilege escalation, shell-in-container, sensitive file read, crypto miner detection, unexpected outbound. Output: structured YAML alert, Falco rule, MITRE ATT&CK mapping, remediation steps + CIS K8s best practices.
Redis Latency Tester — p50/p99 Comparator
Redis latency/throughput calculator with cross-engine comparison (Redis 7, Redis Stack, DragonflyDB, KeyDB, Valkey). Input: workload (cache/session/queue/streams/timeseries/vectors/pubsub/zset), key+value size, ops/sec, topology (single/replica/cluster), persistence. Output: p50/p99 latency, max throughput, memory footprint, bottleneck detection.
Italian Labor Cost Calculator 2026
Italian employer-side labor cost calculator: RAL + 13th/14th + employer INSS (~32%) + INAIL + TFR + holidays + regional IRAP + meal vouchers. 12 CCNL (commerce, metalworking, construction, banking etc), 4 qualifications (worker/employee/manager/director), 11 regions (variable IRAP). Net vs gross vs company cost comparison.
Italian Mortgage Rate Aggregator — 12 Banks
Italian mortgage rate aggregator — 2026 snapshot of 12 banks (Intesa, UniCredit, Banco BPM, BPER, Crédit Agricole, Mediolanum, Webank, Hello Bank, Iccrea, ING, BPER). TAEG/TAN/payment/total interest for fixed/variable/mixed rates, with eligibility check (payment/income ≤30%, LTV cap, refinancing). Best TAEG/payment/total identified.
Dataset Quality Audit — CSV/JSON Client-Side
CSV/JSON dataset quality audit via client-side FileReader (no server upload). Computes missing values, duplicates, cardinality, IQR outliers, type consistency, per-column statistics. 0-100 score + prioritized issues + remediation steps. KB Wave 4 dataset marketplace.
Microchip Genealogy Explorer — 30 Chips 1971-2026
30 microchips 1971-2026 genealogy explorer: Intel 4004→i9, Apple A4→A18 Pro, AMD K6→EPYC Genoa, NVIDIA Tesla→B200, ARM Cortex, RISC-V. Filter by architecture/process nm/manufacturer/year. Predecessor→successor lineage chain. KB Lex Chris Miller "Chip War" + Dwarkesh.
Arduino Project Cost Estimator — BOM 49 Components
Arduino/ESP32/Raspberry Pi project BOM cost estimator. 49 pre-priced 2026 components (boards, sensors, displays, motors, enclosures, power). 7 templates (weather-station, home-automation, robot-rover, IoT gateway, wearable, LED strip, security camera). Output: BOM + total cost + alternatives + assembly time + difficulty.
Robotics ROI Calculator — Industria 5.0 Italy
Italian SME industrial robotics ROI calculator (industrial-arm/cobot/AMR/AGV/picking/palletizing/welding/quality-vision). Output: payback period + 5-year ROI + savings + NPV + Industria 5.0 tax credit (Italian Law 207/2024, 35% on 4.0+5.0 goods).
Italian Universities Startup Map — 30 Atenei
Interactive map of 30 Italian universities + spin-off ecosystems. PoliMI (PoliHub, B3, ~250 spin-offs), PoliTo (I3P, ~200), Bocconi (Startup Geeks), Sapienza, Federico II, Padova, Bologna (Almacube), Pisa Sant'Anna deeptech, etc. Filter by region/sector/spin-off ecosystem size.
Heritage Brand Authenticity Score — Made in Italy
Authenticity scoring for Italian heritage brands (food, fashion, automotive, design, beauty, beverage, craftsmanship, leather). 8 weighted metrics: brand age, continuous family ownership, 100% Made-in-Italy supply chain, traditional method, origin protection (DOP/IGP/STG), design awards, narrative coherence. 6-brand benchmark (Ferrari 95, Cucinelli 92, Lavazza 90).
Chip Supply Chain Risk Map — Geopolitical Scenarios
Global 2026 chip supply chain visualizer with 25 nodes (TSMC, ASML, Samsung, Intel, GlobalFoundries, Synopsys, Cadence, Shin-Etsu, ASE, Tokyo Electron, China Rare Earth) + 5 geopolitical scenarios (baseline/Taiwan-crisis/China-export-ban/US-sanctions/rare-earth-restriction). Output: per-layer impact, alternative routes, delay months, cost increase, mitigation.
KB Topic Graph 3D — Three.js Force-Directed
3D force-directed topic graph on Federico's ~6,000 KB videos (Lex Fridman, Huberman, Dwarkesh, Marcello Ascani, TWiST, YC, We Are Marketers, B Heroes, Riccardo Zanetti, Programming-Knowledge, Neso Academy etc). SSR-safe Three.js dynamic import. 56 topic nodes + 97 edges. Filter by KB cluster + topic family. F3 KB-driven feature.
Pitch Coach Audio — Privacy-First Speech Analyzer
Privacy-first audio pitch coach for founders: record microphone or upload audio (max 5MB), client-side transcription via Web Speech API, metrics computation (WPM, Italian filler words, pauses), structured Ollama on-prem feedback (clarity, value-prop, problem-solution fit, ask, energy). Audio stays in browser, no server upload.
Sanctions Tracker — OFAC EU UK UN Search
Unified search across international sanctions lists OFAC SDN (USA), EU consolidated, UK HMT, UN Security Council. Full-text PostgreSQL pg_trgm search, filter by list + entity type (individual/entity/vessel/aircraft). 40 seed entries MVP, live OFAC/EU/UK/UN cron sync Phase 2. Free vs enterprise WorldCheck/Refinitiv.
Geopolitical Event Impact Visualizer 2020-2026
Interactive timeline + heatmap visualization of 50+ key geopolitical events 2020-2026 (Russia-Ukraine, CHIPS Act, EU AI Act, Hamas, Trump, DeepSeek R1, etc) with impact score (markets/tech/security/energy 0-10). Region/category/date range filters, detail panel + KB sources. Curated from KB Lex Fridman + Dwarkesh + TWiS.
Ask Federico — RAG Chat on Site Content
Conversational RAG chat on site content (702 IT articles + 18 languages + 56 KB clusters Lex/Huberman/Dwarkesh/Tim/YC/Marcello Ascani/B Heroes/Zanetti/WAM, ~6000 videos). Privacy-first on-prem Ollama llama3.1:8b VPS Hetzner. Cites sources. Rate-limited 6/min/IP free. RediSearch HNSW + cross-encoder reranking.
Codon Usage Calculator
Codon usage bias and RSCU analysis from FASTA or raw DNA sequence. Client-side tool: your sequence never leaves the browser. For students of Bioinformatics MSc programs in Italy.
Sequence Alignment Viewer
Global Needleman-Wunsch alignment between two sequences (DNA or protein). Score, identity %, gap %. Educational, client-side, no backend.
Quantum Circuit Visualizer
Build and simulate quantum circuits up to 3 qubits. Gates H, X, Y, Z, S, CNOT. Visualize amplitudes and probabilities.
PNRR Opportunity Finder
PNRR-funded PhD scholarships and research contracts aggregator (FAIR, ICSC, RESTART, ELIXIRxNextGenIT, Cyber 4.0). Filters by city, university, area. Optional email alerts.
Gene Expression Heatmap
Gene expression matrix heatmap visualization with z-score normalization and hierarchical clustering. CSV upload, PNG export.
JWT Analyzer
JWT decoder with risk scoring: detects alg=none, expired exp, kid injection. Educational, client-side, does NOT verify signature.
Qubit State Simulator
Qubit state simulator with α/φ sliders, SVG Bloch sphere, applicable gates H/X/Y/Z/S/T. Examples |+⟩, |Φ+⟩ Bell. Educational, max 4 qubits.
PDB 3D Viewer
Explore protein structures from PDB ID (RCSB) or .pdb file upload. Paginated atoms table, residue/chain statistics, molecular formula.
Scholarship Tracker
Scholarship calendar tracker (12 months) for Italian CS students: Fulbright, DAAD, MSCA, SINGA, KAIST, DeepMind/UCL, Marie Curie, Erasmus+ KA171.
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All generated numbers respect the official validation algorithms (MOD-97 for IBAN, Luhn for VAT number, etc.), and can be used as tests.
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