Concat

Concat is a desktop video editor built to do what people actually use CapCut for, without the watermark or the subscription. Multi-track timeline, split, trim, merge, transitions, speed control, titles, and reusable templates, with a Rust engine underneath and a React interface on top. Auto-captions and text-to-speech run entirely on your machine, so your audio never leaves it. Mozilla Public License 2.0, installs and runs with no account.

Nothing to host. Download a build for macOS, Windows or Linux and start cutting. The macOS binaries are unsigned, so first launch needs `xattr -dr com.apple.quarantine /Applications/Concat.app`, which is a small tax for not paying anyone. Local captioning and TTS means CPU work happens on your hardware rather than someone's GPU cluster, and that is the whole point.

Free with no tiers. Creators cutting short-form video get the obvious win: no watermark, no export limit, no account. Teams doing production work should still reach for a mature NLE. Compare against OpenCut (OpenCut-app/OpenCut) if you want another young open source editor, or keep Auto-Editor (WyattBlue/auto-editor) around for the scripted cuts.

The catch is that this is alpha software at version 0.2.0 from a very new project. It will crash, formats will surprise it, and a timeline you spent three hours on is not something to trust to a pre-release editor yet. Export early and keep the source files.