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Ravenote captures every lecture, quizzes you with spaced repetition, and keeps what you learn in your head. Stop re-watching. Start remembering. 90 seconds to install.
AI reads the full transcript and writes organized notes with headings, key terms, and takeaways.
Open the transcript panel once. Ravenote reads every word in real time.
Targeted comprehension questions powered by SM-2 spaced repetition.
Every concept scored: new, learning, known, mastered. Review exactly what you need.
One click captures the video frame and attaches it to your notes.
Surfaces meaningful links from earlier lectures automatically.
Ravenote appears automatically and starts reading the transcript.
AI generates structured notes from the full transcript. Copy, save, or keep watching.
Spaced repetition tracks every concept and tells you what to review.
No credit card for Free. No subscription for Lifetime. Cancel Pro anytime.
By clicking a paid plan you agree to immediate access and to our refund policy (14-day money-back on Lifetime).
Install Ravenote, open a lecture, and let it work.
Install Ravenote for FreeRavenote is a free Chrome extension for Udemy and YouTube. It automatically generates structured AI notes from video transcripts, quizzes you with active recall when you pause, and tracks your mastery per concept using spaced repetition. The goal is to help you actually retain what you watch instead of passively consuming course content.
Yes. Ravenote works on all Udemy courses with transcripts enabled and on any YouTube video or playlist. It activates automatically when you open a supported video, with no manual setup needed per video.
Ravenote has a free tier with all features for 3 videos, no credit card required. The Lifetime plan is $9.90 one-time (launch price) and gives unlimited videos with your own AI key. Pro is $3.90 for the first month then $39/month, with AI included so no API key setup is needed.
The Free and Lifetime plans are BYOK (bring your own OpenRouter API key). OpenRouter is free to sign up for and gives access to many AI models. Your key is stored locally in your browser and never sent to Ravenote servers. The Pro plan includes AI credits so no API key is needed.
When you pause a video, Ravenote can generate comprehension questions based on what you just watched. It uses the SM-2 spaced repetition algorithm to track which concepts you know well and which need review, surfacing the right questions at the right time. This replaces the "I'll review it later" habit with real-time reinforcement.
Eightify summarizes YouTube videos but does not quiz you or track retention. Glasp is a social highlighter for web articles. Ravenote is built specifically for online course learners: it captures transcripts, generates notes, and runs active recall quizzes with mastery tracking, the full retention loop, not just a summary.
No. Transcripts are processed using your own AI key and notes are stored locally in your browser. Nothing is sent to Ravenote servers unless you sign in to sync across devices.
Yes. Ravenote's free tier includes every feature for 3 videos with no credit card, on both Udemy and YouTube. You bring your own OpenRouter AI key, which is free to sign up for. After the free videos, the Lifetime plan is a one-time $9.90 at launch price for unlimited videos.
Yes. Ravenote generates notes and quizzes in 15 languages, including Spanish, Portuguese, Indonesian, Arabic, Hindi, French, German, Japanese, Korean, Vietnamese, and Mandarin, with the interface and generated content in your chosen language.