A webm to mkv conversion basically represents transformation of two different Matroska formats, namely Matroska WebM and MKV. Both formats are well supported in most modern multimedia converters, so you should have no trouble in finding one that will allow you to convert webm to mkv.
Home > Search converters: webm to mkv
Conversion of webm file format to mkv file format beta
Search for webm to mkv converter or software able to handle these file types.
Convert Matroska WebM video to Matroska multimedia container.
We have found 9 software records in our database eligible for .webm to .mkv file format conversion.
Microsoft Windows software 
- convert webm to mkv on Windows
Miro Video Converter
One of the many multimedia converter programs for Windows
File extension | Convert | Open | Save | Edit | Create | Import | Export | Extract |
|---|---|---|---|---|---|---|---|---|
Convert from webm file | Yes, Miro Video Converter supports webm file conversion as a source file type. | No | No | No | No | No | No | No |
to mkv file | Yes, Miro Video Converter supports mkv file conversion as a target file type. | No | No | No | No | No | No | No |
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned webm to mkv. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Freemake Video Converter
One of the most popular and succesfful free video conversion sofrware
Free Studio
All-in-one package of DVDVideoSoft utilities and converters
MediaCoder
A free universal media transcoder for Windows
SUPER
Universal All Purpose Free Media, Audio & Video Converter Player Recorder
Squeeze
A professional video encoding application for Windows and Mac
XMedia Recode
A desktop transcoder app for Windows
Apple macOS / Mac OS X software 
- convert webm to mkv on OS X
Miro Video Converter for Mac
Easy to use video converter for Mac
Multiplatform software 
- convert webm to mkv on any platform
FFmpeg
Program for multimedia streaming and conversion
Additional links: webm file extension details, mkv file extension details
WEBM
A webm file extension is used for Matroska WebM video files. WebM file format is designed specially for web based on standard HTML5. Video streaming are compressed by VP8/VP9 video codec and audio streaming are compressed by OGG Vorbis audio codec. WebM video streaming is supported by various web browsers such as Firefox, Opera, Chrome etc. Playback of WebM video files are also supported by popular VLC Media Player, MPlayer, Winamp etc.
MKV
An mkv file extension file extension is used for Matroska Multimedia Container format, which is an open source video format very often used for HD movies. You can open it in almost any media player as the format is largely supported.
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