Ravenote is a Chrome extension designed for learners using Udemy and YouTube, aiming to improve retention of video course content through automated note-taking and active recall. The tool addresses the challenge of low information retention from online video lectures by capturing transcripts, generating structured notes, and providing quizzes that reinforce learning using spaced repetition.
When a user opens a supported Udemy course (with transcripts enabled) or any YouTube video or playlist, Ravenote activates automatically without manual setup. It reads the entire transcript in real time and generates organized notes with headings, key terms, and takeaways. Users can copy, save, or continue watching after notes are created. The extension also enables instant transcript capture, screenshot attachment to notes with one click, and highlights cross-lecture connections by surfacing related concepts from previous lectures.
A key feature of Ravenote is its active recall quiz system: when a video is paused, the extension generates targeted comprehension questions based on the just-watched content. These quizzes use the SM-2 spaced repetition algorithm, tracking mastery for each concept and categorizing them as new, learning, known, or mastered. This approach supports regular review and helps users focus on concepts that require more attention, reinforcing memory and understanding over time.
Ravenote prioritizes privacy by storing data and notes locally in the user's browser; transcripts and notes are not sent to Ravenote servers unless the user opts to sign in for device syncing. The extension requires no account for installation and works instantly. For AI-powered note generation, the Free and Lifetime plans require users to provide their own OpenRouter API key, which is stored locally. The Pro plan includes AI credits and removes the need for API key setup.
The pricing model includes a free tier allowing all features for up to three videos with no credit card required. 90 for the first month and then $39 per month, offering unlimited videos and AI included. Ravenote is positioned as a tool specifically for online course learners seeking to actively retain and master content from Udemy and YouTube.
In the Education & learning space, Ravenote takes a focused approach. It focuses on helping online learners retain more information from Udemy and YouTube courses through AI-generated notes and quizzes. It is built as a consumer product for online learners. There is a free tier, and paid plans start at $5. It runs on the web.
Ravenote first shipped in 2024. Key capabilities include AI note generation, active recall quizzes, and spaced repetition. Ravenote is currently in beta.
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