WebM converter
Convert your WebM files to any format.
What is a WebM file?
WebM is the open web video format — smaller than MP4 at the same quality, royalty-free and supported by every modern browser.
First released in 2010 by Google, it uses lossy compression and no transparency, which makes it best suited to web video — open format supported natively by all browsers.
Drop a WebM file below to see every available conversion. Files are processed server-side using ffmpeg and deleted immediately after — never stored.
Advantages of the WebM format
Smaller than MP4
VP9 and AV1 codecs deliver the same quality as H.264 at a noticeably smaller file size.
Royalty-free
WebM is fully open and free — no licensing fees, which is why platforms like YouTube use it.
Convert WebM to…
Pick a target format — your WebM file will be converted server-side using ffmpeg.
WebM: frequently asked questions
Can I play WebM on my phone?
Android and desktop browsers play it natively. Safari on older iOS versions may not — converting to MP4 ensures universal playback.
Is the conversion private?
Video conversion is processed on our servers using ffmpeg — your file is deleted immediately after conversion and never stored.