MOV to MKV Converter (.mov to .mkv)

Convert Apple QuickTime Movie (.mov) files to Matroska Multimedia Container (.mkv) directly on your device. MOV is commonly used for converting iphone `.mov` videos and macos recordings into universal `.mp4` or `.mp3` files, while MKV is ideal for remuxing obs studio recordings to mp4 for premiere/davinci resolve or extracting audio tracks. Every conversion runs locally in your browser with zero server uploads.

100% On-Device Processing • Files Never Leave Your Browser (0 KB Uploaded)

Why Convert MOV to MKV Locally?

Keep iPhone camera videos and macOS screen captures strictly on your own device. Unlike cloud converters that upload your .mov files to remote servers, Artoons processes your files directly on your device.

How to Convert MOV to MKV

  1. Select or drag and drop your .mov (MOV) file into the converter above.
  2. Confirm MKV (.mkv) as the target format and choose your preferred quality preset.
  3. Click Convert to automatically download your converted .mkv file.

Frequently Asked Questions

Do my MOV files ever get uploaded anywhere?

Never — 100% of the conversion runs locally inside your own device memory with 0 KB sent over the network.

Will MOV to MKV look or sound worse?

Quick heads-up: MOV keeps see-through backgrounds, whereas MKV doesn't — transparent areas get filled with a clean solid backdrop. You can also tweak output quality in Preferences anytime.

How big of a .mov file can I convert here?

Right in this browser tab, you can convert .mov files up to 200 MB per file. Pushing bigger clips or giant folders? Grab the free Artoons Desktop App for unlimited sizes.

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