Save once.
Query anywhere.
BrainTube turns every video you watch into a searchable, structured knowledge base — instantly accessible from ChatGPT, Claude, Cursor, or right here.
Everything you need to remember what you watch
Eight features doing one job: turn passive watching into a working knowledge base.
One-Click Save
Paste any YouTube URL and we handle the rest. Automatic transcript extraction and indexing.
Semantic Search
Search by meaning, not just keywords. Find exactly what you're looking for across every video.
AI Chat
Ask questions about your library and get instant, accurate answers with citations.
Auto Summaries
AI-generated summaries and key takeaways so you can quickly review hours of content.
Knowledge Pods
Group related videos into Pods. Connections, quizzes, and synthesis notes generate automatically.
Timestamped Vault
Save the exact moments that matter. Organize, replay, and share your favorite clips.
Chrome Extension
Save, highlight, and chat directly on YouTube. No tab-switching needed.
Your Data, Your Rules
Full export to JSON or Markdown. We never train on your content.
Three steps from URL to knowledge
Paste a URL
Drop any YouTube link into BrainTube. We pull the transcript, generate summaries, and extract key moments — under 30 seconds.
Search like a memory
Ask a question in plain English. Semantic search finds the exact timestamp across every video you've saved.
Build & chat
Group videos into Knowledge Pods. Chat with your library and get answers grounded in your saved content.
What people are saying
"My Watch Later went from graveyard to gold mine. I actually use what I save now."
"BrainTube replaced my notes app, my bookmarks, and three other tools. It's the only place I search now."
"I've watched the same 6 founder podcasts twice. Now I can pull the exact line about pricing in 3 seconds."
Questions, answered
Everything you might want to know before signing up.
Stop losing what you watch.
Free forever for your first 10 videos. No credit card. Export anytime.