Decano Labs

Turn any YouTube video into a Lesson and quiz so you can test whether you actually learned it.

YouTube is great for watching. TubeLearn helps you test whether you actually learned it. Add the TubeLearn side panel to Chrome and turn any YouTube video with captions into a Lesson — a compact study article, cheat sheet, and quiz — without leaving the video. **How it works** 1. Open any YouTube video with available captions. 2. Click the TubeLearn icon to open the side panel. 3. TubeLearn checks the video's captions and creates a Lesson: a readable article, a cheat sheet, and a quiz. 4. Take the quiz, see your score, and review what you missed. **Why TubeLearn** - Test your understanding, not just your attention. A finished video doesn't mean the material stuck — a quiz score does. - Study without switching tabs. The Lesson and quiz live in Chrome's side panel next to the video you're learning from. - Review what you missed. Get straight to the concepts you got wrong instead of rewatching the whole video. - Works on any public YouTube video with captions — lectures, tutorials, talks, courses. **Who it's for** Intentional learners who use YouTube as a study tool — students, professionals upskilling, and anyone who wants proof they learned something, not just a summary of what was said. TubeLearn does not post on your behalf, modify the videos you watch, or collect the content of your quiz answers beyond what's needed to show your score and review.