Tsubasa ?

Tsubasa is a fast video compression service that runs locally on your device. Maintain the best quality while staying under MB file limits.

Visit Tsubasa site


Why Tsubasa

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 >


View Github