Convert MKV
Matroska container. Decode and encode via ffmpeg.wasm. Every pair below runs in the browser. The file is not uploaded. Video and audio use FFmpeg in WebAssembly, fetched from this origin once, about 30 MB, then cached by the service worker. The clip itself is not part of that download.
This hub is the index, not the workbench. Each conversion is its own URL so a search for “MKV to something” can land on a page that only does that job. The file picker on those pages expects MKV when you are leaving this format, or produces MKV when you are arriving. A generic dropdown still exists under Video convert and Audio convert if you would rather pick the destination after you drop the file.
You can check the same way on every pair: open the network panel, drop a MKV file, convert it. You should see this origin. You shouldn't see a POST of the file. Google Analytics, if it's on, is page views, not your MKV bytes. If a tool needs a server, it isn't on this site.
This site can read it. This site can write it. Engine: ffmpeg.
Convert from MKV
- MKV to MP4H.264 video in the container phones and sites expect.
- MKV to WebMVP8 video for the open web.
- MKV to MOVQuickTime container, often off a camera or an iPhone.
- MKV to AVIOlder Windows video container. Decode and encode via ffmpeg.wasm.
- MKV to FLVFlash Video container for older web and camera clips.
- MKV to 3GPOld mobile phone video container.
- MKV to MPGMPEG-1 program stream (.mpg / .mpeg).
- MKV to TSMPEG transport stream from broadcast or screen capture.
- MKV to VOBDVD Video Object streams.
- MKV to DIVXMPEG-4 ASP in an AVI-style container (DivX tag).
- MKV to F4VFlash MP4 relative used by older Adobe tooling.
- MKV to OGMOgg media with Theora/Vorbis.
- MKV to DVDigital Video tape format.
- MKV to M2VRaw MPEG-2 video elementary stream.
- MKV to SVISamsung SVI (AVI-family) clips.
- MKV to NUTNUT container from the FFmpeg project.
- MKV to Y4MYUV4MPEG2 raw video stream.
Convert to MKV
- MP4 to MKVH.264 video in the container phones and sites expect.
- WebM to MKVVP8 video for the open web.
- MOV to MKVQuickTime container, often off a camera or an iPhone.
- AVI to MKVOlder Windows video container. Decode and encode via ffmpeg.wasm.
- FLV to MKVFlash Video container for older web and camera clips.
- 3GP to MKVOld mobile phone video container.
- MPG to MKVMPEG-1 program stream (.mpg / .mpeg).
- TS to MKVMPEG transport stream from broadcast or screen capture.
- VOB to MKVDVD Video Object streams.
- DIVX to MKVMPEG-4 ASP in an AVI-style container (DivX tag).
- F4V to MKVFlash MP4 relative used by older Adobe tooling.
- OGM to MKVOgg media with Theora/Vorbis.
- DV to MKVDigital Video tape format.
- M2V to MKVRaw MPEG-2 video elementary stream.
- SVI to MKVSamsung SVI (AVI-family) clips.
- NUT to MKVNUT container from the FFmpeg project.
- Y4M to MKVYUV4MPEG2 raw video stream.
Related: Convert · All formats · How it works