Show HN: VidDojo – Turn any YouTube video into an interactive course

VidDojo, a new AI-powered platform, turns any YouTube video into an interactive course by inserting questions inside the player and rewinding to the exact spot on wrong answers. The tool automatically cuts chapters, pauses at checkpoints, and offers six question types, with per-concept progress tracking and a final boss-fight for coding videos. Users can paste a link from YouTube, Vimeo, or direct .mp4, and the AI builds the course in 60 seconds, with a free tier for videos up to 30 minutes.

Don't rewatch. Train. AI turns any educational video into a course: questions inside the player, wrong answers rewind to the exact spot. Checkpoint. What does this print? log "1" ; setTimeout = log "2" ; log "3" ; Not a player. A trainer. The video asks the questions Chapters get cut automatically. The player pauses itself at checkpoints. You never decide when to test yourself. Six ways to ask The player never repeats itself twice in a row. Rewind to the eureka moment AI finds the exact 30-second segment instead of saying «watch it again». Chapters unlock like a map Weak answers hide what's next, strong ones unlock an insider take. Per-concept progress Not «53% of the course»: useEffect 30%, useMemo 80%. A boss-fight at the end Coding videos end in a browser editor with Jest tests: no pass without green. Everything else gets a final exam graded by AI. 8 tests passed Three steps from link to course - 1 Paste a link YouTube, Vimeo, direct .mp4. Captions or not: Whisper picks up videos up to 140 min. - 2 AI builds the course in 60s Chapters, varied checkpoints, secret branches, a final boss-fight. - 3 Learn and see your gaps Player pauses on questions. Wrong answers rewind. A health bar shows where you're weak. Ready to learn the way they should've taught from day one? Paste a link, get a course, start training for free. Upgrade when you outgrow 30-minute videos.