Why convert WebM to MP4?

MP4 is supported by virtually all devices and platforms. WebM may not play on some older devices or video editors.

Is there quality loss?

Minimal. The video is re-encoded to H.264 at high quality.

Convert WebM videos to universally supported MP4 format. Free online converter.

Drop your file here

or click to browse · max 500MB · .mp4,.mov

🔒 Processing happens in your browser — files are never uploaded

Select file

Drop your video file in the upload area.

Browser processes

Your file is processed locally using WebAssembly.

Download result

Get your file — nothing ever leaves your device.

Convert WebM videos to universally compatible MP4 format.

Universal compatibility

MP4 works on every device.

Client-side

Processed in your browser.