Free Tools

MP4 to MKV

Convert from MP4 (MPEG-4 Video) to MKV (Matroska Video)

Drop files here or click to upload

Change the video file format from MP4 to MKV, then download the converted file. Turn MP4 file into MKV, conversion is done in the browser, registration is not required. Our tools work on any platform, be it Mac, Android, Windows, or any other. It is completely free and there are no usage limits.

Information on how to use this tool:

  1. Drop your files onto the area above or click it to upload, icons with the names of your files will appear in the area. Allowed file formats: MP4.
  2. Wait for all the files to upload, the "Convert" button will show up below the icons.
  3. Click the "Convert" button, a message will appear indicating that your files are being processed.
  4. Wait for the processing to complete, the waiting time usually varies between a few seconds and a few minutes.
  5. To download the processed files, you can click on the icon of each file individually or click the button below the icons to download all the files as a ZIP archive.