Convert MOV to MKV
Turn your MOV file into an MKV that plays where you need it, right in your browser.
- Free to start
- In your browser
- Up to 500 MB
How to convert MOV to MKV
Upload your MOV file
Drag and drop a MOV file, or click to browse. Up to 500 MB, and nothing is installed.
Confirm MKV as the output
MKV is already selected, so there is nothing to configure. Switch to another format in the panel if MOV needs to go somewhere else.
Convert and download
We convert the MOV on our servers, usually in under a minute. Create a free account to download the MKV, or keep editing it in REQO.
Why convert MOV to MKV?
MOV is Apple’s QuickTime container. It is what an iPhone and Final Cut hand you, and it can hold anything from ordinary H.264 to enormous ProRes masters, which is exactly why it travels badly outside the Apple ecosystem.
The practical problem: Windows and Android often refuse to play MOV files, or play the picture with no sound. ProRes MOV files from a camera or Final Cut can be ten times larger than the same footage as MP4. Some upload forms reject the extension even when the video inside is ordinary H.264.
MKV solves that. Keeps multiple audio and subtitle tracks in one file.
Container
Typical codecs
Best for
Plays on
File size
| Feature | MOV | MKV |
|---|---|---|
| Container | Apple QuickTime | Matroska |
| Typical codecs | H.264, HEVC or ProRes | Almost anything: H.264, HEVC, AV1, VP9 |
| Best for | Editing on a Mac, footage straight off an iPhone | Archiving with multiple audio and subtitle tracks |
| Plays on | macOS and iOS natively, patchy elsewhere | VLC and desktop players; rarely anywhere else |
| File size | Large, especially ProRes | Depends entirely on the codec inside |
MOV to MKV questions
Is the MOV to MKV converter free?
Yes. Convert and preview the result for free, then create a free account to download it. There is no per-file charge and no watermark on the MKV itself beyond the free-plan badge.
Do I need to install any software?
No. The conversion runs on our servers and the whole flow happens in your browser, so it works the same on Windows, macOS, Linux, iPhone and Android. Nothing to install at either end. Where MOV plays: macOS and iOS natively, patchy elsewhere. Where the MKV you get back plays: VLC and desktop players; rarely anywhere else.
Does converting MOV to MKV reduce the quality?
Converting re-encodes the video, so it is not bit-for-bit identical. We encode at a high quality target, which keeps the result visually indistinguishable from the MOV on normal viewing. What changes is the container and the codec. MKV holds: Almost anything: H.264, HEVC, AV1, VP9. Converting the same file back and forth repeatedly will eventually show, so keep your original.
How large a file can I convert?
Up to 500 MB per file, which is more footage in some formats than others. MOV: Large, especially ProRes. MKV coming back: Depends entirely on the codec inside. For anything bigger, trim or compress it first, both are free tools here.
Is my file kept private?
Your upload is processed and then held only as long as your project needs it. Nothing is published, indexed or shared unless you create a share link yourself.
Other formats
Everything else you can do here.
Convert to MP4
Convert to WebM
Convert to MOV
Convert to AVI
Convert to MKV
Convert to WMV
Convert to MP3
Convert to M4A
Convert to AAC
Convert MOV to MKV now
Free, in your browser, and the file stays open in a full video editor afterwards.