WebM Converter
Convert files to and from WebM — free, online, no signup.
auto-delete in 24h · no signup · no watermark
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WebM is a royalty-free video container Google released in 2010 for the open web, carrying VP8/VP9 video and Vorbis/Opus audio. Browsers support it natively and HTML5 sites love it, but phones, TVs, and editing software often do not — converting WebM to MP4 fixes that instantly.
| Full name | WebM |
| Developer | |
| Released | 2010 |
| Type | Media container |
| Typical use | web video, screen recordings from browsers |
| MIME | video/webm |
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Frequently asked questions
How do I open a WebM file?
WebM is a royalty-free video container Google released in 2010 for the open web, carrying VP8/VP9 video and Vorbis/Opus audio. Browsers support it natively and HTML5 sites love it, but phones, TVs, and editing software often do not — converting WebM to MP4 fixes that instantly. If a device refuses to open it, the fastest fix is converting it to a more universal format with the converter above.
Is converting WebM files free?
Yes — 10 conversions a day with files up to 200 MB, free, with no signup and no watermarks.