YouTube Lecture Summarizer - AI Lesson Summary
Paste a YouTube URL and get summary, key points, clickable timestamps, and main concepts. Enhanced transcript processed locally - guaranteed privacy.
Supported: youtube.com/watch?v= and youtu.be/ (11 characters)
Come utilizzare YouTube Lecture Summarizer
Stick in the YouTube video URL
Support formats like youtube.com/watch?v= and youtu.be. The video must have a transcript/subtitles available on YouTube.
Choose language and summary length
Select the language of the transcript (Italian or English) and desired length of the generated summary.
Start analysis with AI
Click "Analyze with AI": the transcript is downloaded and processed on-premises using Ollama in two stages (download transcript, then summary generation).
Explore summary, takeout, and timestamp details
Review generated summary, open sections Key Takeaways, Key Moments (with direct link to the minute in the video), and Mentioned Concepts.
Suggerimenti
- Use detailed length for technical lessons where you want to keep more intermediate steps of reasoning.
- Open the "Concepts mentioned" section before watching the video to get a quick idea of the topics covered.
- If a video doesn't produce results, check on YouTube if it has active subtitles (also automated) before trying again with this tool.
Domande frequenti
Is content sent to external cloud services?
No. The transcript is fully downloaded and processed on-premises using Ollama on the server (VPS Hetzner) of the site. No content is sent to third-party AI providers such as OpenAI or Anthropic.
Why can't some videos be summarized?
The tool requires a video to have a transcript or subtitles available on YouTube (automatic or uploaded by the author). Videos without subtitles, private, or with geographical restrictions cannot be processed.
What difference is there between available summary lengths?
Choose your text length to get a concise summary or a more detailed version.
How do clickable timestamps work?
Every "key moment" identified by AI linked to a YouTube link with timestamp (?t=seconds): clicking it opens the video directly at the specified minute, useful for reviewing a specific passage without manually scrolling.
Can I choose the language of the transcript if the video is in a different language?
You can select between Italian and English the language in which you want the transcript available for that video to be processed. If the video does not have subtitles in the selected language, processing may not work or use the nearest available track.