tengen
a 3.6 mb video editor — import, cut, layer, animate, export, all on the gpu with nothing bundled. preview and export run the identical shader.
- Stars
- 0
- on GitHub
- Category
- rust
- Developer
- justin06lee
- Language
- TypeScript
- Runs on
- desktop
A video editor that fits in four megabytes. Import, cut, layer, animate, export — on the GPU, with nothing bundled.
Most video editors are a gigabyte of Electron wrapped around a copy of ffmpeg. Tengen is a 3.6 MB Tauri app whose entire compositing and encoding path is the machine's own hardware: frames are composited by a WebGL2 shader and encoded by VideoToolbox through WebCodecs. There is no bundled ffmpeg, no transcoding on import, and no render cache on disk.
The consequence that matters day to day: preview and export run the same code. Export doesn't re-interpret your edit through a filter graph — it composites the identical frames with the identical shader, then hands them to the hardware encoder. What you watched is what lands in the file.
Information
- Developer
- justin06lee
- Category
- rust, tauri, desktop app
- Compatibility
- desktop
- Language
- TypeScript
- Updated
- sep 5, 2026
- Year
- 2026
- Source Code
- github.com/justin06lee/tengen
