Compress MKV Videos

MKV is an open-source container format that supports virtually any codec, multiple audio tracks, subtitles, and chapters. It's perfect for archiving, media servers, and complex video projects.

Quick Compress
Choose a file, pick how small it should be, and compress locally.
%

Percentage is applied to the original file size.

Why Choose MKV?

  • Supports any video and audio codec
  • Multiple audio tracks in different languages
  • Multiple subtitle tracks
  • Chapter markers for easy navigation
  • Open source and royalty-free
  • Ideal for Plex, Jellyfin, Kodi media servers

MKV Limitations

  • Limited compatibility on mobile devices
  • Not supported by many TVs and streaming sticks
  • Larger file sizes due to overhead
  • Not ideal for social media or web streaming

Best Uses for MKV

  • Media server organization (Plex, Jellyfin, Kodi)
  • Archiving video collections
  • Multi-language video distribution
  • Movies and TV shows with subtitles
  • Complex video projects with multiple streams
  • High-quality video archival

Compatible Codecs

MKV supports AVC, HEVC, VP9, VP8, AV1 for video and AAC, OPUS, MP3, VORBIS for audio.

Technical Specifications

  • Container: Matroska multimedia container
  • Streaming: Poor - not optimized for streaming
  • Compatibility: Limited on consumer devices, excellent on PCs

How to Compress MKV Videos

  1. Upload your video file
  2. Select MKV as output format
  3. Choose codec and quality settings
  4. Set target file size
  5. Compress locally in your browser

Frequently Asked Questions

What is MKV?

MKV (MKV (Matroska Video)) is a video container format. MKV is an open-source container format that supports virtually any codec, multiple audio tracks, subtitles, and chapters.

When should I use MKV?

Use MKV for: Media server organization (Plex, Jellyfin, Kodi); Archiving video collections; Multi-language video distribution. It's the go-to format for these use cases.

What codecs work with MKV?

MKV supports AVC, HEVC, VP9, VP8, AV1 for video and AAC, OPUS, MP3, VORBIS for audio. This gives you flexibility in choosing the best codec for your needs.

Can I compress MKV videos?

Absolutely! Upload your MKV video, adjust compression settings, and our tool will process it locally in your browser. You can reduce file size significantly without quality loss.

Is MKV compatible with my device?

Limited on consumer devices, excellent on PCs. Supports any video and audio codec.

What are the disadvantages of MKV?

Limited compatibility on mobile devices; Not supported by many TVs and streaming sticks; Larger file sizes due to overhead; Not ideal for social media or web streaming. Despite these limitations, MKV remains supports any video and audio codec.

Related Formats

WebMMP4MOV