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AI Short Video Maker from YouTube Links
Free open-source alternative to OpusClip — paste a YouTube link, get a vertical short with AI-detected highlights, subtitles, translation and voiceover. No watermarks.
This open-source tool converts any YouTube video (or local file) into vertical short-form clips ready for Reels, TikTok, or Shorts. It downloads the video, transcribes it locally with faster-whisper, then uses an AI model to classify the content type and rank highlight candidates by virality score (hook moments, emotional peaks, opinion bombs, story peaks). The top clips are rendered at 9:16 with optional subtitles, translation, and AI-generated hook at the start. It works with OpenAI, Gemini, or MuAPI — Gemini has a free tier. A local web interface is also available for queuing multiple videos visually.
Why a vibe-coder should care
Paid services like OpusClip charge a monthly subscription and add watermarks. This does the same job free, locally, with no watermarks on the output. If you create content regularly, it turns a tedious multi-step editing workflow into a single command.
How to install
Copy this and send it to your agent — Claude Code, Codex, any of them:
Deploy this short video generator from https://github.com/Colafornia/short-video-generator-AI — follow the README, set up .env with a Gemini API key (free tier available), run it on a test YouTube video and show me the output clip.
Runs on a regular laptop — Python 3.10+ required plus an API key (Gemini has a free daily tier).
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