Validators
Online validators: tax code, email, IBAN, VAT. Instant verification with official algorithms.
Most Popular
All Validators Tools
Regex Tester
Test regex in real-time with highlighting, capture groups, cheat sheet and common patterns.
Open tool →Contrast Checker WCAG
Check color contrast according to WCAG 2.1. AA and AAA compliance for text and UI components.
Open tool →Password Strength Analyzer
Analyze password strength in real-time: entropy, crack time, vulnerable patterns and suggestions.
Open tool →Tax ID Validator Multi-Country
Validate tax IDs from 15+ countries with real algorithms. CPF, NIF, BSN, PESEL, SSN and more.
Open tool →Email Validator
Validate email addresses: syntax, MX records, disposable and role-based detection with suggestions.
Open tool →VAT Number Validator
Validate European VAT numbers via the official VIES service. 27 EU countries supported.
Open tool →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).
Open tool →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.
Open tool →German Tax Number & IdNr Validator
Validate German Steuernummer (10-11 digits, Bundesland format) and Identifikationsnummer (11 digits, MOD-11 checksum). Auto-detection.
Open tool →German VAT ID Validator MOD-11
Validate German Umsatzsteuer-Identifikationsnummer (DE + 9 digits) with MOD-11 algorithm §27a UStG. Check digit calculation.
Open tool →German Social Security Number Validator
Validate German Sozialversicherungsnummer (12 chars). Format: area code + TTMMJJ + initial + serial + checksum.
Open tool →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.
Open tool →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.
Open tool →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.
Open tool →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.
Open tool →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.
Open tool →Italian Tax Code Explainer AI
Decode Italian fiscal code (birth date, municipality, gender, omocodia) with AI narrative explanation. Privacy: all on-prem via Ollama.
Open tool →Dockerfile Linter
Analyze your Dockerfile for best practices, security and optimization with 12 rules, score and grade. Client-side.
Open tool →OpenAPI Validator
Validate OpenAPI 3.x and Swagger 2.x specs: required fields, operations, responses, $ref and best practices. Fully local, client-side.
Open tool →.env Validator
Validate .env files: KEY=VALUE format, duplicate keys, empty values, unquoted spaces and sensitive patterns (API keys, secrets, tokens). Client-side.
Open tool →Git Commit Linter
Validate Git commit messages against Conventional Commits, Angular Style and Gitmoji: live rules, score and fix suggestions. Client-side.
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