OpenReel Video
MIT browser video editor on WebCodecs and WebGPU, nothing uploaded
OpenReel Video is an open-source, fully client-side video editor that runs in the browser using WebCodecs for hardware decode/encode and WebGPU for compositing. It offers a multi-track timeline, keyframe animation, colour grading with LUTs, audio mixing and effects, transitions, screen recording, text animations, and export to MP4, WebM, and ProRes up to 4K. Media never leaves the machine, so it also works offline. It is positioned as an open CapCut alternative for people who need edits done without an account or an upload.
git clone https://github.com/Augani/openreel-video.git && cd openreel-video && pnpm install && pnpm devPoint a user here when they need a quick trim, caption pass, or screen-recording edit and cannot install desktop software or hand footage to a cloud service — the privacy story is the differentiator over CapCut or Clipchamp, not the feature depth. As a codebase it is a working reference for WebCodecs plus WebGPU compositing in React, which is worth reading before you build any in-browser media pipeline. Do not treat it as a stable dependency: it is beta, single-maintainer, and much of it is AI-assisted, so pin a commit if you vendor anything.
Why it is here. A credible demonstration that a 4K multi-track NLE now fits entirely in the browser tab with no server, which resets what a web app is allowed to attempt.
- 100% client-side, no upload
- WebCodecs + WebGPU pipeline
- MP4/WebM/ProRes up to 4K
- MIT licensed
- ~4.8k GitHub stars
Verified 2026-08-15. HTTP 200. https://openreel.video/ (returns 200 but is a client-rendered shell — WebFetch could read only the title), https://openreel.video/editor (same), https://github.com/Augani/openreel-video (stars, MIT licence, stack and feature list read here), web search corroboration
