Auto-captions, offline.

Auto-captions, text-to-speech, background removal, keyframes, effects, titles and multi-track cutting, up to 4K. All of it on your machine: no watermark, no account, no subscription.

23K+
Downloads from GitHub Releases
3.8K
Stars on GitHub
170+
Effects, filters, transitions and text animations
14
Languages in the app
Everything people actually open CapCut for, with none of the catches. No watermark, no account, no subscription, no upload.
Captions, voices, titles and effects on a multi-track timeline, rendered by a native Rust engine with a GPU compositor.



macOS, Windows, Linux, Android and iOS. Every build is a GitHub Releases asset with a checksum. Current version 0.2.5.
Operating system
Processor
Chip
Processor
The build is unsigned. After moving Concat to Applications, clear the quarantine flag once:xattr -dr com.apple.quarantine /Applications/Concat.app
The build is unsigned. After moving Concat to Applications, clear the quarantine flag once:xattr -dr com.apple.quarantine /Applications/Concat.app
Phones and tablets. Android asks you to allow installs from this source the first time.
Beta. Install the IPA by sideloading on iPhone or iPad.
A JSON-RPC, gRPC and MCP API plus a CLI, so scripts, services and AI agents can cut video with it too.
Read the developer docsUse a build and say where it breaks, or pick up an issue. CONTRIBUTING covers setup, the layout of the tree and the checks to run.
Read the contributing guideWhat comes next, what sponsorship pays for, and what each piece costs.
See the roadmapConcat is free and open source, and stays that way. Sponsorship funds continued development, updates, and the store releases on the roadmap.
Sponsorship is monthly and priced over a message. For as long as you sponsor, you or your company are listed on the Concat repository and on this page.
Yes. No watermark, no account, no paid tier, and the code is AGPL-3.0.
No. Editing, captions, voices and cutout all run locally. The optional models download once from Settings and work offline after that. Logs stay on disk unless you attach them to an issue yourself.
The macOS builds are unsigned. Move Concat to Applications, then clear the quarantine flag once:
xattr -dr com.apple.quarantine /Applications/Concat.appiOS is in beta and is not on the App Store. Download the IPA from the picker above and install it by sideloading.
Minimum: any 64-bit processor from 2013 or later, 4 GB of RAM and 500 MB of storage, with no GPU required. Recommended for smooth 1080p editing and quick 4K exports: 6 cores or more, a GPU with Metal, DirectX 12 or Vulkan, and 16 GB of RAM.
The roadmap lays out what sponsorship pays for and what each piece costs. Every sponsor gets a place on the repository and on this page for the months they sponsor.
See the roadmapSponsoring starts with a message. Tell us about you or your company and how you should appear on the repository and this page.
Join the Concat server and send a message.
Join the serverFor anything longer, or if you are not on Discord.
jub0trd@gmail.com