Tsubasa is a fast video compression service that runs locally on your device. Maintain the best quality while staying under MB file limits.
Tsubasa was created as a proof-of-concept for a ffmpeg-wasm implementation.
✅ Allows transcoding to a size limit (for services with a file size upload limit)
✅ Allows scaling resolution, to preserve video quality/bitrate
✅ Preserves audio quality
✅ Runs locally on your device
Feel free to submit bugs and feature suggestions under Issues.
See the Wiki for development setup >