Synop - Open-Source AI-Powered YouTube Video Summarizer

I got tired of paying $20/mo for AI wrappers that just summarize YouTube videos, so I built an open-source alternative. Synop runs locally, lets you bring your own API keys (like Gemini or Groq), and extracts detailed notes, viral clips, and social posts for basically free.

Hey Product Hunt! 👋 I’m Sharad, the creator of Synop. I consume a ton of long-form podcasts, tech lectures, and tutorials on YouTube. But scrubbing through 2-hour videos just to find 5 minutes of actual value was draining my time. I tried existing AI summarizers, but they all suffer from the same problem: insane subscription fees. Charging $20/month for a simple API wrapper didn't sit right with me. So I built Synop. It’s completely open-source, runs locally via SQLite, and operates on a Bring Your Own Key (BYOK) model. By plugging in your own API key (like Gemini or Groq—which have incredible free tiers), you can summarize unlimited videos for $0. Core Features: 📝 Structured, highly-detailed summaries ✂️ Automatic viral clip extraction with timestamps 📱 Generates Twitter threads & LinkedIn posts from videos 💬 Interactive "Chat with Video" capabilities 💻 Sleek, dark-mode focused UI Synop is MIT Licensed. I’d love for you to check out the GitHub repo, run it locally, and let me know what features you’d like to see next! Happy to answer any questions in the comments! 🚀

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Maker

📌

19h ago

Love that this is open source and BYOK, finally a tool that respects my wallet. One thing that would make it stickier for me is letting users save a custom prompt template so the generated social posts match my usual voice instead of defaulting to that generic AI tone.

32m ago