Convert MP4 to WebM — Free
Processed entirely in your browser. Your file is never uploaded to a server.
Drop an MP4 file here or click to browse
This tool converts an MP4 video to the WebM format.
Drop your MP4 above. The WebM file downloads automatically once ready — larger files take longer, especially on mobile.
FAQ
Does this work on mobile?
Yes, but large videos may be slow or use significant memory on phones — try a smaller file first if it stalls.