Why does my screen recording save as WebM?

Chrome-based screen recorders, browser extensions, and many web-based recording tools use WebM because it's natively supported by Chrome without any codec overhead. The trade-off is that WebM isn't well-supported outside the browser.

Can I play WebM on Windows Media Player?

No, Windows Media Player doesn't support WebM. You need VLC, or better yet, convert the WebM to MP4 to play it natively.

Can I play WebM on iPhone?

iPhone natively supports WebM in Safari starting with iOS 16 (VP8 only). For older iOS versions or better compatibility across all Apple devices, convert to MP4.

Does Loom export videos as WebM?

Loom downloads vary by browser. Chrome typically downloads as WebM. If your Loom recording is WebM, drop it here to convert to MP4 for sharing outside the browser.

Are my video files uploaded to a server?

No. FFmpeg.wasm processes everything in your browser.

Will quality be preserved?

WebM typically uses VP8 or VP9 codec. Converting to H.264 MP4 involves re-encoding, which may introduce a small quality reduction, but output is excellent for sharing and editing.

WebM to MP4 Converter

Convert WebM to MP4 free online — no upload, no signup. Fix browser screen recordings, Loom exports & WebM video compatibility. 100% private, browser-based.

FileConvertir — Free Online File Converter