Convert MP4 to WEBM

Drop a MP4 file below and download it as WEBM in seconds. Free, no signup, no watermark — and your file is deleted automatically after 14 days.

1. Upload your MP4 file — drag & drop or tap to browse.
2. Pick WEBM as the target format and choose a quality preset.
3. Press Convert and download your WEBM file when it's ready.

Is this MP4 to WEBM converter free?

Yes — converting MP4 to WEBM is completely free, with no signup, no watermark and no daily limit beyond fair-use queuing.

Is it safe to upload my files?

Your file is only used to perform the conversion. It is never shared, there are no ads or trackers, and both the original and the result are deleted automatically after 14 days — or immediately if you delete them yourself.

Does it work on a phone?

Yes. The converter runs entirely in the browser page — nothing to install — and the site is built mobile-first, so converting MP4 to WEBM works on Android and iPhone.