Convert MOV to MKV — Free Online Converter
Convert QuickTime Movie (.mov) to Matroska Video (.mkv) online for free. Fast, secure video conversion with no watermarks or registration....
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Cách chuyển đổi
Upload your .mov file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .mkv file when it's ready.
About MOV to MKV Conversion
MOV (QuickTime Movie) is Apple's proprietary container, while MKV (Matroska Video) is an open-source container developed in 2002 by Steve Lhomme. MKV can hold virtually unlimited video, audio, and subtitle tracks in any codec combination. It has become the de facto standard for high-quality video archival, Blu-ray rips, and anime fansubs due to its flexibility and open specification.
Why Convert MOV to MKV?
MKV provides features that MOV lacks for many users: multiple subtitle tracks (SRT, ASS, PGS), ordered chapter support, segment linking, and attachment embedding (fonts, cover art). While MOV is tightly integrated with macOS, MKV is the universal choice for cross-platform video libraries managed by Kodi, Plex, Jellyfin, and Emby.
Converting MOV to MKV also allows embedding multiple audio tracks (original language, commentary, alternate mix) that QuickTime's consumer-oriented tools do not expose.
Common Use Cases
- Adding subtitle tracks to iPhone MOV recordings for multilingual distribution via Plex or Kodi
- Archiving ProRes MOV masters in MKV with multiple audio tracks and chapter markers
- Converting Mac screen recordings to MKV for consistent playback in cross-platform media servers
- Embedding soft subtitles and font attachments into MOV content for anime-style releases
- Preparing iPhone video for inclusion in Kodi/Jellyfin media libraries with proper metadata
How It Works
FFmpeg remuxes the MOV content into Matroska's EBML-based container. H.264 and H.265 video streams are typically copied without transcoding since MKV supports these codecs natively. AAC audio is also copied. Additional subtitle tracks can be muxed in during conversion. MKV's cluster-based structure allows chapter markers, tags, and attachments. The conversion preserves the original encoding parameters and bitstream.
Quality & Performance
When remuxing (stream copy), quality is 100% preserved — the audio and video bitstreams are identical to the MOV source. Only the container structure changes. MKV imposes no quality limitations beyond what the contained codecs support.
Device Compatibility
| Device | MOV | MKV |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Native | Partial |
| iPhone/iPad | Native | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No | No |
Recommended Settings by Platform
YouTube
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
Resolution: 1080x1080
Bitrate: 3.5 Mbps
Square or 9:16 for Reels
TikTok
Resolution: 1080x1920
Bitrate: 4 Mbps
9:16 vertical, under 60s ideal
Twitter/X
Resolution: 1280x720
Bitrate: 5 Mbps
Under 140s, 512MB max
Resolution: 960x540
Bitrate: 2 Mbps
16MB limit for standard, 64MB for document
Discord
Resolution: 1280x720
Bitrate: 4 Mbps
8MB free, 50MB Nitro
Tips for Best Results
- 1Use stream copy (-c copy) for instant lossless remuxing — this is the fastest and highest quality option
- 2Add chapter markers during conversion if the MOV source represents a structured video (lectures, tutorials, multi-scene content)
- 3Mux in SRT subtitle files during conversion for multilingual support in media players like VLC and Kodi
- 4Verify the output with MediaInfo to confirm all tracks transferred correctly and codec parameters are preserved
- 5Name MKV files following Plex/Kodi naming conventions (Movie Title (Year).mkv) if adding to a media library
Related Conversions
MOV to MKV conversion opens Apple video to the open-source media ecosystem with lossless remuxing and added features like multi-track subtitles and chapters.