Convert MP4 to MKV
Turn your MP4 files into MKV right in your browser, fast, secure and private.
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How to convert MP4 to MKV?
- 1Add your MP4 file by drag and drop.
- 2Choose MKV as the output format.
- 3Run the conversion and download your MKV file.
Frequently asked questions
- Is converting MP4 to MKV free?
- Yes, converting MP4 → MKV is free for occasional use, with no sign-up.
- Are my files safe?
- Your files are processed in the European Union via private, time-limited links, then deleted automatically.