Runs in your browser

MP4 to WebM Converter

Convert MP4 to WebM (VP9 + Opus) for the web.

Questions

Is my video uploaded to a server?
No. The conversion runs entirely in your browser using your device's own video engine. Your file never leaves your computer.
Why convert to WebM?
WebM with VP9 is an open, royalty-free format that's well supported on the web and often smaller than MP4 at the same quality.