WebM to MP4 Converter

WebM screen recordings and web videos don't open in some editors or on Apple devices. This free WebM to MP4 converter runs entirely in your browser, so your files are never uploaded.

WebM is an open web video format using VP8, VP9 or AV1. MP4 is the most widely supported video container.

How to convert WebM to MP4: Choose your WebM files, or drop them onto the converter. The output is already set to MP4. Adjust quality or size if you like. Convert and download your MP4 files.

Is this WebM to MP4 converter free? Yes. It's free to use, with no sign-up and no watermark.

Are my files uploaded? No. The conversion runs in your browser, so your files never leave your device.

What changes when I convert WebM to MP4? The VP8 or VP9 video is re-encoded to H.264.

Can I convert several WebM files at once? Yes. Add as many files as you like and they're converted one after another.

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