Compress video
Make a video smaller without sending it anywhere. Runs in your browser and downloads an MP4.
Re-encoding runs in your browser, so a long or high-resolution clip can take a while.
Compress a video to a smaller file in your browser. Choose how much to shrink it, and the tool re-encodes the video locally. Larger videos take longer, since all the work happens on your own device.
Questions
How small does it get?
It re-encodes with H.264 at a balanced quality level, which typically cuts file size a lot while staying close to the original picture. Exactly how much depends on the source.
Why is it slower than the other tools?
Compressing a video means re-encoding every frame, and that runs entirely in your browser. A short clip is quick; a long or high-resolution video can take a while.
Is anything uploaded?
No. The whole job runs on your device with ffmpeg compiled to WebAssembly. The file never leaves your browser.