How to open .MKV files on iOS

To open .MKV files on iOS, install VLC from the App Store.

Step-by-step instructions

  1. Install VLC from the App Store.
  2. Consider transcoding to MP4 if playback issues occur.

Recommended software

  • Files player
  • VLC for Mobile
  • Infuse

Alternative methods

  • Open .MKV in a browser-based viewer if desktop apps fail.
  • Try opening .MKV on iOS with a secondary app to rule out app-specific issues.
  • Convert .MKV only with trusted tools when direct opening is not possible.

Common issues

Subtitles are missing

The player may not automatically select the correct subtitle track.

  1. Access the subtitle settings in your player.
  2. Manually select the desired subtitle track.
  3. Use MKVToolNix to set a default subtitle track.

Audio out of sync

Audio may not sync properly with video playback.

  1. Use VLC to adjust audio delay.
  2. Check for updated codecs or player versions.
  3. Remux the file with corrected audio sync using MKVToolNix.

Playback stutters or lags

High-resolution files may cause performance issues.

  1. Ensure your device meets the file's playback requirements.
  2. Try a different media player with better optimization.
  3. Reduce video quality or resolution if possible.

Security note

Avoid downloading codec packs from untrusted sources.

Back to .MKV extension page