WEBM to MP4 Converter

Get broad device and editor support back from a WEBM source. Drop a WEBM file below — the whole conversion runs on your device.

Drop files, or click to browse

WEBM files only — processed one at a time

Frequently asked questions

Is this WEBM to MP4 converter free?+

Yes, with no watermark and no account. The engine runs locally in your browser, so there's no server queue limiting usage.

Is my video uploaded to a server?+

No. Orbfile uses ffmpeg.wasm, a version of ffmpeg compiled to WebAssembly, so encoding happens entirely on your device.

How long will it take?+

It depends on your device and the video's length and resolution — expect roughly real-time to a few times real-time for typical clips.

Need a different format? Try the full Video Converter, or explore all video tools.