MKV converter
Ethical Tube's free MKV converter turns MKV videos into MP4, MOV, WebM, MP3, and other formats, and converts MP4, M4V, MOV, WebM, and other files into MKV. It runs entirely in your browser, so your files are never uploaded, and it's free with no sign-up or watermark.
Files are converted on your device and never uploaded.
- Price
- Free
- Uploads
- None, it runs on your device
- Sign-up
- Not needed
- Converts to
- 13 formats
- Converts from
- 11 formats
- Install
- Nothing to install
All conversions
MKV conversions
The format
What is an MKV file?
Matroska video
MKV (Matroska) is an open container that can hold almost any video and audio codec, plus several audio tracks and subtitles in one file. It's popular for films, TV recordings, and OBS recordings. Many phones, TVs, editors, and QuickTime can't play MKV, so it's often converted to MP4.
What opens MKV files
VLC, mpv, Plex, Kodi, Windows Media Player on Windows 10 and 11, and many smart TVs. QuickTime, iMovie, and iPhone can't open it.
FAQ
Questions, answered
Is the MKV converter free?
Yes. It's completely free, with no sign-up, no watermark, and no limit on how many files you convert. It costs Ethical Tube nothing to run, because the conversion happens on your own device rather than on a server.
Are my files uploaded anywhere?
No. Everything runs inside your browser with Mediabunny and your browser's WebCodecs video encoders, so your files never leave your device. Once the page has loaded, it even works offline.
Does it work on iPhone, Android, Mac, and Windows?
Yes. It works in current versions of Chrome, Edge, Safari, and Firefox. Phones handle short clips well, and long or 4K videos convert best on a computer.
What can I convert MKV to?
MP4, MOV, WebM, MP3, WAV, M4A, OGG, FLAC, AAC, GIF, AVI, WMV, and MPEG. Pick the format after adding your file.
What can I convert to MKV?
MP4, M4V, MOV, WebM, TS, AVI, WMV, FLV, MPEG, 3GP, and OGV.
Keep converting
Related converters
Start your first recording in seconds
It's free, it runs in your browser, and there's no account to create.
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