FileSwitchFileSwitch
MP4 MKV

MP4 to MKV

Convert MP4 videos to MKV

More media tools

View all tools
MP4 GIF

MP4 to GIF

Convert MP4 videos to GIF

MediaDocs
MP4 MP3

MP4 to MP3

Extract MP3 audio from MP4 videos

MediaDocs
MP3 WAV

MP3 to WAV

Convert MP3 audio to WAV

MediaDocs
WAV MP3

WAV to MP3

Convert WAV audio to MP3

MediaDocs
FLAC MP3

FLAC to MP3

Convert FLAC audio to MP3

MediaDocs
M4A MP3

M4A to MP3

Convert M4A audio to MP3

MediaDocs

How to MP4 to MKV Online

  1. 1

    Upload MP4

    Drag and drop your MP4 video into the converter.

  2. 2

    Convert to MKV

    Click Convert. Your video is re-encoded into a Matroska MKV.

  3. 3

    Download MKV

    Download your MKV for archiving or playback.

Why Use FileSwitch for MP4 to MKV?

  • Re-encodes to Matroska MKV container
  • Quality presets: low, medium, high
  • Resolution scaling up to 4K
  • Frame rate control up to 60 fps
  • Ideal for archival storage

Frequently Asked Questions

Why convert MP4 to MKV?

MKV is a flexible container favored for archiving because it supports rich streams, chapters, and metadata.

Is MKV widely supported?

MKV plays on most modern players and TVs; for maximum device compatibility MP4 remains the safest choice.