Synop
Open-Source AI-Powered YouTube Video Summarizer
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Synop - Open-Source AI-Powered YouTube Video Summarizer

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Synop is an open-source, local-first AI tool for video content repurposing. Bring your own API keys to transform YouTube videos into structured notes, viral clip timestamps, and social media posts. 100% private processing. Skip generic AI summaries and build an automated, secure video-to-text workflow on your machine.

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Maker
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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! 🚀

Love that you made BYOK the default instead of locking it behind a subscription, feels like the right call for a tool like this. Running locally with your own keys is a refreshing take.

Maker

 Thanks! We really wanted to build something that respects your wallet and gives you full control. BYOK just made the most sense.

If you're finding it refreshing, an upvote on this page and a star on our GitHub repo would mean the absolute world to us! 🙏

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.

Maker

 Hey, thanks! Glad you’re enjoying it. You’re totally right about the AI tone. Being able to save a custom voice template is a brilliant idea. I just added it to the roadmap and will push it out soon!