YOUR SECOND BRAIN
FOR VIDEO
Save YouTube videos. Get synthesis across them — themes, consensus, contradictions, and what's missing. Stop re-watching; start re-thinking.
✓ START FREE • NO CREDIT CARD • 15 CREDITS INCLUDED
Upgrade to Pro ($9/month) for 100 credits per month
Most tools store. We synthesize. Group videos into a playlist or collection — get one document that answers what they collectively say.
SAVE
Drop YouTube URLs. Sync whole playlists. Bookmark anything worth coming back to.
RESURFACE
Open any summary; we surface the saved videos that connect to it. Old notes find you when they're relevant — not just when you remember.
SYNTHESIZE
Generate a Brief on any playlist or collection: recurring themes, consensus, where sources contradict, gaps you haven't filled yet.
Themes
Multi-step planning over single-turn reasoning — five videos argue effective AI agents need explicit planning. Two push back, claiming planners over-engineer simple tasks.
Where sources disagree
Should agents share long-term memory? Three say yes (with retrieval). Two say no (fresh context per task). Worth knowing before you architect anything.
Knowledge gaps
What's the cost ceiling beyond which agents stop being economical? None of the saved videos answer this directly.
Save 3+ videos to a playlist or collection — your Brief generates with one click.
SAVE TIME
Watch 1 hour videos in 2 minutes. Get key insights without sitting through lengthy content.
INSTANT
AI-powered analysis delivers comprehensive summaries in seconds, not hours.
LEARN SMARTER
Key concepts, action items, and takeaways structured for easy scanning.
STAY PRODUCTIVE
Review multiple videos quickly. Make informed decisions without watching everything.
Try your first summary instantly •
HOW IT WORKS
PASTE VIDEO URL
Copy any YouTube video link and paste it into the input field above.
AI ANALYSIS
Our AI extracts the transcript and analyzes the content for key insights.
GET SUMMARY
Receive a structured summary with main points, timestamps, and key takeaways.
15 free credits every month • No credit card needed
TIME SAVED
Average time reduction compared to watching the full video. A 60-minute talk becomes a 2-minute read.
Average read time
Credits on Team plan
Need more than 15 credits per month?
View Pro Pricing →FREQUENTLY ASKED
What is a second brain for video?+
A second brain for video is a knowledge tool that doesn't just summarise individual videos — it synthesises across the videos you save. TooLong generates a Brief for any playlist or collection that surfaces recurring themes, points of consensus, contradictions between sources, and knowledge gaps the set doesn't address.
How is this different from a regular summarizer?+
Most YouTube summarizers turn one video into one summary. TooLong does that too, but its core job is what happens next: when you save many videos, it synthesises across them. The Brief on a 12-video playlist tells you what those 12 sources collectively say — not what one of them says.
What's a Brief?+
A Brief is an AI-generated synthesis document for a playlist or collection. It contains: 3-6 recurring themes (each citing the source videos), points of consensus where multiple videos agree, points of disagreement where sources contradict, and knowledge gaps — concrete questions the set doesn't answer.
Is TooLong free?+
Yes — TooLong is free to start with 15 credits per month. No credit card required. The Pro plan is $9/month for 100 credits if you need more capacity.
Do I need to install anything?+
No — TooLong is a web app at toolong.xyz. You can paste a YouTube URL directly, or sign in with Google to sync your YouTube playlists automatically. There's an optional Chrome extension that adds an inline summary button to YouTube, but it's not required.
What videos can I save?+
Any public YouTube video with captions or a transcript. TooLong supports individual videos, YouTube playlists (which auto-sync), and YouTube Shorts. It does not access age-restricted videos or private uploads.
YOUR TIME IS VALUABLE
Why watch for an hour when you can read for 2 minutes?