Free AI tool that turns YouTube videos into summaries with key points and timestamps
Turn Substack articles into viral social posts
Stage
Startup
Startup
Founded
2026
2025
Based in
Not given
Not given
Pricing model
Freemium
Freemium
Pricing
Free: 5 summaries per day, no signup required. Pro: $7.99/month or $59.99/year (save 37% with annual billing). Free users get key points extraction; Pro includes 100 summaries and video questions per day, 50 transcript extractions per day, and instant translation to 12 languages.
Free: 10 credits (one-time). Monthly: $7/mo for 70 credits. Yearly: $65/yr for 600 credits.
Key features
Instant YouTube video summarization
Key points extraction with timestamps
Chat with video content
50+ languages supported
No account required
YouTube Shorts support
Full transcript extraction
Chrome extension available
TYPE-FORMULA pipeline that extracts insight types (diagnostic, wisdom, contrarian, data-backed, framework, story) and applies viral structures
Knowledge Bank to store, browse, and reuse extracted insights
10+ viral formula structures including parallel repetition, conditional framework, and bridge analogy
Chrome extension for scheduling posts directly to Substack
Rich-text editor with HTML and plain text export
MCP integration for Claude and Cursor
Automatic article URL processing from published or draft posts
Priority processing for paid plan users
What makes it different
Free with no mandatory signup or credit card
Clickable timestamps let you jump directly to moments in the video
Summaries available in 12 target languages independent of video language
Designed specifically for Substack writers with formulas trained on viral patterns
Two-stage TYPE-FORMULA process instead of generic AI summarization
Knowledge Bank compounds over time as more articles are processed
From URL to scheduled post in minutes with no copy-paste needed
Summarizer.tube
Quick Viral Notes