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YouTube summaries in 30 seconds.

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app.synop.ai
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Good Evening!

12hrs Time Saved
24 Videos Analyzed
Recent Videos
Video Title
Channel
Lex Fridman: AI and the Future of Humanity
Lex Fridman
YCombinator: How to get your first 10 customers
YCombinator
Stanford CS229: Machine Learning Lecture 1
Stanford
Summarize 2h podcast in 30s•Chat with your video•Extract Frameworks•Export to Notion•Generate Timestamps•
Summarize 2h podcast in 30s•Chat with your video•Extract Frameworks•Export to Notion•Generate Timestamps•
Summarize 2h podcast in 30s•Chat with your video•Extract Frameworks•Export to Notion•Generate Timestamps•
Everything You Need

A powerhouse for content digestion.

Stop skimming through bloated videos. Synop extracts exactly what you need in seconds, with zero compromises.

Signal-to-Noise Density

See exactly what percentage of a video is real value. We strip sponsor reads, filler, and repetition — leaving only the high-signal content.

Chat with the AI

Have a conversation directly with the video's transcript. Ask specific questions and get precise answers grounded in the video.

Semantic Topic Clusters

Content grouped by theme, not by time — jump to any topic's combined summary, wherever it appeared in the video.

Debate Matrix

Map each speaker's stance, isolate their claims, and see exactly where experts agree and disagree.

Global Languages

Summarize and chat with videos in over 12 languages. Break down language barriers and consume global content effortlessly.

Local-First Knowledge

Export any summary to Obsidian or Notion with auto-generated wiki-links, straight into your personal knowledge base.

100% Open Source

Bring Your Own Key (BYOK).
Zero monthly subscriptions.

Most AI summarization tools charge you $20/month for basic features. Since Synop is completely open-source and runs locally, you just plug in your own API keys (Gemini, Groq, or OpenRouter) and pay literally fractions of a cent per video—or use free tiers for $0.

  • No hidden tracking or telemetry.
  • SQLite database sits entirely on your machine.
  • MIT Licensed. Fork it and build upon it.
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