MKV converter, in your browser.
Convert MKV (Matroska) files to MP4, MP3, WebM and MOV and more, or turn other files into MKV. Everything on this page is converted in your browser, so your files never leave your device.
Drop MKV files here
or choose from your computer paste with Ctrl V
from Photos or Files
Ready · other file types work too0 bytes uploaded, ever
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- Batch and ZIP download
- Free
About MKV
MKV is an open container that can hold practically any video and audio format plus multiple subtitle tracks. That flexibility is why it is popular for films, and why Apple devices and browsers refuse it.
MKV does not play on iPhones, in QuickTime or in most browsers and editors. MKV can carry several audio and subtitle tracks in one file.
- Stands for
- Matroska
- Type
- Video container
- Compression
- Depends on what is inside
- Usually contains
- Almost anything: H.264, HEVC, AV1, several audio and subtitle tracks
- Introduced
- 2002, by the Matroska project
- Opens in
- VLC, Plex and many TVs; not iPhones, QuickTime or most browsers
- Best for
- Films with several audio and subtitle tracks
- File extension
- .mkv
- MIME type
- video/x-matroska
Questions
How do I open an MKV file?
MKV opens in: VLC, Plex and many TVs; not iPhones, QuickTime or most browsers. If your device or app cannot open it, convert it to MP4 or MP3 above.
What can I convert MKV to?
toany converts MKV to MP4, MP3, WebM, MOV, AVI, WMV, FLV, 3GP, MPG, TS, M2TS, M4V, OGV, GIF, WebP, APNG, M4A, AAC, OGG, OPUS, WAV, FLAC, SRT, VTT and ASS.
What can I convert to MKV?
toany creates MKV files from MP4, MOV, WebM, AVI, WMV, FLV, 3GP, MPG, TS, M2TS, VOB, MXF, DV and WTV.
Are my files uploaded?
No. Every MKV conversion listed here runs inside your browser. The files stay on your device.
Other video formats
- MP4MP4 converterThe video format that plays on every phone, browser and TV.
- MOVMOV converterApple's QuickTime format; what iPhones and Macs record.
- WEBMWebM converterAn open video format made for the web.
- AVIAVI converterAn older Windows video container.
- WMVWMV converterMicrosoft's older video format.
- FLVFLV converterThe retired Flash video format.
- 3GP3GP converterA small video format from older phones.
- MPGMPG converterThe older MPEG-1/2 video format.
- TSTS converterVideo as broadcast on digital TV and streamed in segments.
- M4VM4V converterApple's MP4 variant used by iTunes and the iPhone.
- F4VF4V converterThe MP4-based video format of Adobe Flash.
- M2TSM2TS converterThe video files of camcorders (AVCHD) and Blu-ray discs.
- VOBVOB converterThe video files on a DVD.
- MXFMXF converterA professional broadcast and camera format.
- DVDV converterTape-camcorder video as copied over FireWire.
- ASFASF converterMicrosoft's streaming container; the parent of WMV and WMA.
- DIVXDIVX converterMPEG-4 video in an AVI container, popular in the 2000s.
- RMRM converterThe video format of RealPlayer.
- WTVWTV converterTV recordings made by Windows Media Center.
- OGVOGV converterOpen video, usually Theora with Vorbis sound.