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Convert WebM to MP4 Online — Free

Convert WebM videos to universally compatible MP4 format. Free, private, browser-based.

Need to share a WebM video on a device that doesn't support it? Convert to MP4 for maximum compatibility.

Drop your file here

or click to select

Supported: MP4, MOV, WebM, AVI, MKV

How to Convert WebM to MP4

Drag and drop your .WebM file onto the converter.

The file is processed entirely in your browser — no upload to any server.

Download the MP4 file, ready to play on any device.