Convert MKV to WebM

Upload your MKV file (Matroska video) and get it back as WebM (WebM video) in seconds.

How to convert MKV to WebM

  1. Choose your MKV file, or drop it on this page.
  2. Check that WebM is selected as the output format.
  3. Click Convert, then download your WebM file.

Questions and answers

Is it free to convert MKV to WebM?
Yes. You can convert up to 5 files a day for free, without an account.
Are my files safe?
Your upload is deleted as soon as the conversion finishes, and the result 15 minutes later. Nobody looks at your files.
How big can my file be?
Up to 50 MB per file on the free plan.

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