How to use the WebM to MP4 Converter

  1. 1Drop your WebM file onto the tool, or click to choose it.
  2. 2Click Convert and wait for the progress bar to finish.
  3. 3Preview the result.
  4. 4Download your MP4 file.

About this tool

WebM to MP4 conversion in your browser

This tool reads your WebM video directly in the browser and encodes a MP4 copy, so there is no upload, no queue and no waiting for a server. It works on desktop and mobile.

Why convert WebM to MP4?

WebM recordings from browsers and screen recorders often will not open in editors, TVs or iPhones. MP4 is accepted by nearly every device and platform.

Good to know

Screen recordings with variable frame rate convert fine; very long recordings take longer.

Frequently asked questions

Yes, audio and video are re-encoded together and stay in sync.

WebM is an open web video format using VP8 or VP9.

MP4 is the most compatible video format, playable on virtually every device and browser. Converting makes your file easier to open, share or publish.

Yes. There is no cost, no watermark and no sign-up.

No. The conversion runs inside your browser on your own device, so your files stay private.

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