ShareX/Formats/MKV Format - ShareX Screenshot Output

format

MKV Format - ShareX Screenshot Output

Save ShareX captures as MKV — when to use this format, quality and file size comparison, and how to set it as your default output.

MKV Format in ShareX

MKV (Matroska Video) is a modern, open-source multimedia container format. It's designed to hold an unlimited number of video, audio, picture, and subtitle tracks in a single file.

MKV Features

  • Multiple streams — Store multiple audio tracks, subtitles, and chapters
  • Open standard — Fully open-source, no licensing restrictions
  • Modern codecs — Supports H.264, H.265, VP9, AV1 and more
  • Metadata rich — Extensive tagging, chapters, and attachment support
  • Error resilience — Designed to handle corrupted files gracefully

When to Use MKV

MKV excels in specific scenarios:

  • Multi-track recordings — System audio + microphone on separate tracks
  • Subtitle embedding — Soft subtitles that can be toggled on/off
  • Archive quality — Preserve all streams without transcoding
  • High-quality rips — Popular format for video preservation

Why Not MKV for Most Users

  • Limited player support — Not all media players handle MKV well
  • Web incompatibility — Browsers cannot play MKV natively
  • Larger file sizes — Multiple streams increase file size
  • Platform issues — Some devices and smart TVs have limited MKV support

MKV vs MP4 in ShareX

For most ShareX users, MP4 is the better choice:

  • Better compatibility across all devices
  • Smaller file sizes for single-stream recordings
  • Easier sharing and uploading to platforms

Use MKV when you specifically need multi-track capabilities or archive-quality recordings.

Official References

Official project links

If you need the original docs, release files or project source code, go directly to the official ShareX resources.