Open-source local video editor - Concat
TL;DR: Concat replaces cloud-based editors by running entirely on your machine via a native Rust engine and GPU compositor. It processes local models for offline tasks like auto-captions and voice cloning without uploading raw footage.
Best for: Developers, creators, and tinkerers wanting a local, scriptable video editor.
Repository snapshot: ⭐ 14 124 stars · 🍴 1 748 forks · Rust · AGPL-3.0
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What it is
Concat is an open-source, local-first video editor written in Rust. It aims to provide a native alternative to cloud-dependent video editing suites, running entirely on consumer hardware with GPU acceleration and local AI integration.
How it works
The project relies on a native Rust engine paired with a GPU compositor to render effects and transitions live in the preview window. For offline intelligence, it runs local models to handle tasks like automated speech-to-text captions and voice cloning without sending data to external servers. It exposes a built-in JSON-RPC API and a Model Context Protocol server, allowing AI agents and external scripts to manipulate timelines and project structures programmatically.
Key features
- Local execution with GPU-accelerated rendering and live preview composition
- Offline auto-captions and voice cloning powered by local models
- Scriptable workflow via an integrated JSON-RPC API and MCP server
- Built-in curve editor and keyframe animation parameters
- Export capabilities supporting H.264, HEVC, and AV1 up to 4K 60fps in 10-bit color
Getting started
Clone the repository from GitHub and ensure you have a compatible Rust toolchain installed alongside your GPU drivers. Build the project locally using Cargo:
git clone https://github.com/jub0t/Concat.git cd Concat cargo build --release When not to use it
Because the software is currently in an early beta phase, you should expect potential stability issues and missing creature comforts found in mature commercial suites. It is not recommended for production environments where crashes could result in missed deadlines until the codebase matures further.
Discuss
Which video editing task do you most wish you could automate via an API?
Curated from the repository README and metadata. No hands-on test is claimed; evaluate it in a sandbox before production use.
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