Free in-browser video compressor

Shrink large recordings for email, Slack, or web uploads without sending the file to a cloud converter. Pick a compression level and download a smaller MP4.

Processing happens entirely on your machine. We show the original and compressed sizes so you can decide if the tradeoff looks right before you keep the result.

Recording demos on Mac? Capture in Glisio first, polish in the local editor, then compress here if you still need a lighter file.