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Convert WebM to MP4

Convert WebM files to MP4 in your browser.

Drop files here

or paste them in. Whole folders work too.

  • Nothing is uploaded
  • Works offline
  • Free and open source

How to convert WebM to MP4

  1. Choose your WebM files, or drop them anywhere on this page.

  2. Check that MP4 is selected, and change the settings if you need to.

  3. Select Convert, then save your MP4 files.

About WebM and MP4

WebM

WebM is an open video format for the web, using VP8, VP9 or AV1 video. Browsers play it, but many editors and Apple apps don’t.

MP4

MP4 is the most widely supported video format. It plays on phones, in browsers and on TVs, and opens in almost every editing app.

Questions

How do I convert WebM to MP4?
Choose your WebM files or drop them on this page, check that MP4 is selected, then select Convert and save the result. It works the same on a phone or a computer.
Is it safe to convert WebM to MP4 here?
Yes. The conversion runs in your browser, so your WebM files are never uploaded, stored or logged.
Can I convert several WebM files at once?
Yes. Add as many as you like and they convert together. Save each result on its own, or all of them as one ZIP.

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