MP4 to WEBM

Convert MP4 videos to WEBM in your browser. No upload required. Great for web delivery.

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Upload Video

Drag & drop or click to select a video file

How to convert MP4 to WEBM

  1. Upload an MP4 file.
  2. Optionally trim the time range.
  3. Click Convert and wait for completion.
  4. Download the WEBM file.

Privacy

By default, conversion runs locally in your browser. Your video is not uploaded to any server.

MP4 to WEBM FAQ

Why does WEBM conversion take time?

WEBM output usually requires transcoding which is CPU intensive in the browser.

Is my file uploaded?

No. The conversion runs locally by default.