Convert MKV to MP4
Convert or remux MKV files to MP4 for broader device support.
- Input:
- MKV
- Output:
- MP4
- Max size:
- 100 MB
- Runs:
- On secure servers
What the MKV to MP4 does
Convert MKV (Matroska) videos to MP4 so they play on phones, smart TVs and in browsers. Compatible streams are copied without re-encoding for speed.
Options
- Quality: High quality, Balanced or Smallest file.
- Copy streams without re-encoding when possible: fastest and lossless when the video already uses MP4-compatible codecs.
Good to know
MP4 holds one video track and the first audio track; extra subtitle tracks from the MKV are not kept.
How to use the MKV to MP4
- 1
Drag your MKV file into the upload area, or click it to browse your device.
- 2
Adjust the options to suit your needs — the defaults work well for most files.
- 3
Click “Run MKV to MP4” to start processing.
- 4
Preview the result, then download it. Batch results can be downloaded together as a ZIP.
Supported formats
- MKV (Matroska) is a flexible container that can hold many video, audio and subtitle tracks.
- MP4 is the most widely supported video container, usually with H.264 or H.265 video and AAC audio. More about the MP4 format.
Frequently asked questions
Related tools
Video Converter
Convert videos between MP4, WebM, MOV and MKV with codec and quality options.
Video Cutter
Remove an unwanted section from the middle of a video and join the remaining parts.
Video Trimmer
Keep only the part of a video between a start and end time.
Video Compressor
Reduce video file size with quality-based or target-size compression.
Video Resizer
Change video resolution, for example from 4K to 1080p or 720p.
Video Cropper
Crop the video frame to a region or aspect ratio such as 9:16 for vertical video.