How to convert M4V to MKV
- Add your .M4V file - drop it in the box above or click to browse.
- Convert it to .MKV in a few seconds.
- Download your new .MKV file.
What to expect
- Apple FairPlay DRM on iTunes Store purchases blocks any standard conversion - only M4V files you ripped yourself or exported from iMovie or Final Cut Pro can be converted.
- A remux (MKVToolNix or FFmpeg
-c copy) moves streams unchanged into the new container; file size and quality are identical to the source. - Renaming
.m4vto.mkvproduces an unreadable file - they are completely different container formats and require a proper conversion tool.
Frequently asked questions
Can I convert a DRM-protected M4V to MKV?
No - Apple FairPlay DRM prevents any standard tool from accessing the video stream. Only M4V files without DRM can be converted.
Does the video quality change when converting to MKV?
Not with a remux using MKVToolNix or FFmpeg
-c copy. HandBrake re-encodes the video, which changes the data even at high quality settings.Will subtitles and multiple audio tracks carry over?
Yes. MKVToolNix and FFmpeg copy all tracks by default, and MKV natively supports multiple audio, subtitle, and chapter tracks.
How long does conversion take?
A remux finishes in seconds regardless of file size. HandBrake re-encoding takes minutes to hours depending on resolution and settings.
