Video · Browser only

Compress video, privately.

Reduce video size with local WebAssembly processing. Pick a quality level and optional maximum resolution, then download an MP4 when it is ready.

Your video never leaves your device.

Local video compressionDrop a video hereor choose a file · MP4, MOV, M4V, WebM, AVI, MKV · up to 500 MB

Your video never leaves your device. Compression runs in a Web Worker in this browser tab.

How it works

Choose, compress, download.

Select a video, choose quality and an optional output resolution, then start compression. The original file remains on your device.

Privacy

Your video never leaves your device. No account, upload endpoint, cloud storage, or server processing is used.

Limits

Files are limited to 500 MB to keep browser memory use practical. Compression speed depends on your device and video length.

Output

The downloaded file is an MP4 with common H.264 video and AAC audio encoding. Video metadata is removed from the output.