Convert WebM to MP4
Convert WebM to MP4 in your browser. MP4 with H.264 is the universal video format — playable on every phone, TV, edit suite, and social platform.
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How it works
- Drop a
.webmfile (or any video) onto the page. - The MP4 output preset is already selected — hit Convert Now.
- Download the result. The whole conversion ran in your browser via WebCodecs or FFmpeg.wasm. No file left your device.
Why convert WebM to MP4?
Convert WebM to MP4 in your browser. MP4 with H.264 is the universal video format — playable on every phone, TV, edit suite, and social platform.
Is my file uploaded anywhere?
No. poqpoq is a static site — the page you're looking at is a bunch of JavaScript your browser downloaded once. It runs entirely on your device. There is no upload endpoint. When you open your browser's Network tab during a conversion, you'll see zero requests going out.