Vidtools

Runs in your browser

Convert MKV to MP4

Turn MKV files into MP4 in your browser. No upload, no watermark, no signup.

Drop · pick · paste

Drop a video to start

Your file stays on this device. Nothing uploads.

How it works

  1. 1

    Add your MKV file

    Drop, pick, or paste it. It stays on your device.

  2. 2

    Convert

    We re-encode it to MP4 right here in your browser.

  3. 3

    Download

    Save the MP4 file. No watermark, no signup.

Why nothing uploads

Other tools send your video to their servers, which costs them money per file, so they add watermarks, cap file sizes, and make you sign up. This tool does the work right here in your browser using your own device. Your file is never uploaded, so there is no wait, no watermark, no size limit, and no account.

Questions

Is this MKV to MP4 converter free?
Yes, no account, no trial, no watermark, no size limit.
Does my file get uploaded?
No. Conversion happens in your browser; your file never leaves your device.
Will converting to MP4 reduce quality?
Re-encoding always involves some loss, but we use sensible high-quality settings. To also shrink the file, use the compressor.
What if my file won't open?
Some exotic codecs can't be read in the browser. Try a different source file or format.

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