Convert MOV to MKV
Convert MOV files to MKV in seconds. Free, no upload, no watermark. Trim, compress or edit before you convert.
or drag & drop videos, audio or images here, or paste with Ctrl+V
MP4 · MOV · MKV · AVI · WebM · WMV · FLV · GIF · MP3 · WAV · M4A · and 40+ more
- Files never leave your device
- No sign-up, no watermark
- Free forever
How to convert MOV to MKV
- Add your MOV fileClick “Choose files” or drag & drop your MOV file onto the page.
- Check the outputMKV is pre-selected. Optionally trim, crop, compress or tweak quality in the tabs.
- Convert & downloadClick “Convert & download”. Your MKV file is created on your device and saved instantly.
MOV vs MKV
Short answer: MKV (Matroska) is a flexible open container that can hold almost any video, audio and subtitle tracks in one file. Popular for movies and archiving.
What is MOV?
MOV is Apple's QuickTime container, used by iPhones and professional editing software like Final Cut Pro. It supports high-quality codecs such as ProRes and HEVC.
What is MKV?
MKV (Matroska) is a flexible open container that can hold almost any video, audio and subtitle tracks in one file. Popular for movies and archiving.
Quality
If the video and audio codecs inside your MOV file are already compatible with MKV, we copy them without re-encoding: it's instant and lossless. Otherwise we re-encode with a high-quality setting (adjustable with the Quality slider).
| MOV | MKV | |
|---|---|---|
| Full name | Apple QuickTime Movie | Matroska Video |
| Type | video | video |
| Best for | Apple devices, Final Cut Pro, iMovie and professional editing | Movies, multiple audio/subtitle tracks and archiving |
| MIME type | video/quicktime | video/x-matroska |
Last updated 2026-11-13
MOV to MKV: FAQ
Is this MOV to MKV converter free?
Yes. Converting MOV to MKV is completely free with no watermark, no sign-up and no file limits beyond what your device can handle. Optional Pro features like 4K export and AI subtitles are available if you need them, and a single 4K export can be unlocked without a subscription.
Are my MOV files uploaded to a server?
No, never. The conversion runs entirely in your web browser using FFmpeg compiled to WebAssembly. Your MOV file never leaves your computer or phone, and we never store it, which makes it private and fast.
Will I lose quality converting MOV to MKV?
If the video and audio codecs inside your MOV file are already compatible with MKV, we copy them without re-encoding: it's instant and lossless. Otherwise we re-encode with a high-quality setting (adjustable with the Quality slider).
How do I convert MOV to MKV on iPhone or Android?
Open this page in Safari or Chrome on your phone, tap “Choose files”, pick your MOV file and tap “Convert & download”. No app install needed.
Can I convert multiple MOV files to MKV at once?
Yes. Select several files and click “Convert all”. You can download them one by one or as a ZIP. Free users can batch-convert up to 5 files at a time; Pro removes the limit.
Can I edit the MOV before converting?
Yes: trim, cut, crop, rotate, resize, change speed, adjust colour, add text, music or subtitles, and more, all before you export to MKV.