Convert M4V to MKV
Free, fast and secure — convert M4V to MKV right in your browser.
Convert M4V to MKV for wider compatibility
Converting M4V to MKV gives you a more widely supported file that opens cleanly across more devices, apps and platforms — handy when M4V will not play nicely everywhere.
How to convert M4V to MKV
- 1 Drop your M4V file into the converter above.
- 2 It is converted to MKV automatically — no settings to fiddle with.
- 3 Download your new MKV file instantly.
M4V vs MKV
| Feature | M4V | MKV |
|---|---|---|
| Compression | Lossy | Lossy |
| Transparency | No | No |
| Animation | Yes | Yes |
| MIME type | video/x-m4v | video/x-matroska |
| Best for | Apple/iTunes video — converted to plain MP4 for the widest reach. | Archiving high-quality video with multiple tracks — converted to MP4 for everyday playback. |
About the formats
M4V video
M4V is Apple’s MP4 variant used by iTunes. It is essentially MP4 and plays well across Apple devices, sometimes carrying optional copy protection.
Strengths
- Near-identical to MP4
- Plays cleanly on Apple devices
- Good quality-to-size ratio
Limitations
- Can carry DRM restrictions
- Less universal naming
- Occasional player quirks
Best for: Apple/iTunes video — converted to plain MP4 for the widest reach.
Matroska video
MKV (Matroska) is a flexible open container that can bundle many video, audio and subtitle tracks in one file. It is popular for high-quality archives and media libraries.
Strengths
- Holds multiple audio/subtitle tracks
- Open and future-proof
- Great for high-quality storage
Limitations
- Not supported on many phones/browsers
- Often needs converting to play
- Larger than streaming formats
Best for: Archiving high-quality video with multiple tracks — converted to MP4 for everyday playback.