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Open-source Submagic alternative

One open-source alternative to Submagic, with its features, GitHub activity and licence.

The open-source alternative to Submagic listed on Enlisted is AI YouTube Shorts Generator.

AI YouTube Shorts Generator is listed under AI tools. It shipped code in the last 30 days, can be self-hosted and uses a permissive licence.

Last updated October 3, 2026 · ranked by GitHub stars, growth and recent commits

AI YouTube Shorts Generator

This Python project turns long YouTube videos into vertical shorts using LLM highlight detection, Whisper transcription and automatic cropping, with no watermarks.

GitHub stars
5.2k
Last commit
4 days ago
Licence
MIT
Self-hosted
Yes
vadoo.tvAI YouTube Shorts Generator homepage screenshot

AI YouTube Shorts Generator is an open-source alternative to clipping services such as Opus Clip, Vidyo.ai, Klap and SubMagic. You give it a long-form YouTube video and it returns ranked, vertical 9:16 clips suitable for Shorts, Reels and TikTok, without per-clip credits or watermarks.

Under the hood it transcribes the video with Whisper, uses a GPT-class language model to detect the most compelling moments, and crops the footage to a vertical frame automatically. The authors emphasize control over the highlight algorithm, and the repository topics cover auto-clipping, auto-cropping and highlight detection. It is written in Python.

The project is MIT-licensed and runs on your own machine with your own model access, which suits creators, agencies and developers who do not want subscription fees or minute caps. The website is run by a related commercial video tool, so check for a hosted option there.

Key features

  • Highlight detection with an LLM
  • Transcription using Whisper models
  • Automatic vertical 9:16 cropping
  • Ranked clip output
  • No watermarks or per-clip credits
  • Configurable highlight algorithm

Pricing: Hosted Vadoo AI plans: Starter $19, Pro $39 and Advance $99 a month, with lower yearly rates shown for Starter and Pro. No free plan is listed.

Submagic alternatives: questions

What is the best open-source alternative to Submagic?
AI YouTube Shorts Generator is the only open-source alternative to Submagic listed on Enlisted so far: This Python project turns long YouTube videos into vertical shorts using LLM highlight detection, Whisper transcription and automatic cropping, with no watermarks.
Is AI YouTube Shorts Generator free?
AI YouTube Shorts Generator is open source, so the code is free to use under its licence, and it can be self-hosted on your own server or computer.
How does Enlisted rank Submagic alternatives?
By a score built from GitHub stars, star growth over the last 30 days and how recently the code changed. AI YouTube Shorts Generator shipped code in the last 30 days. Data is refreshed daily, and nobody can pay to move up.

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