Convert Matroska video files (MKV) online for free
The converter easily converts your MKV videos to various formats - free and online. No VLC media player or or other Video software needed.
The converter also works in reverse, so you can convert other "Multimedia Container Format" formats to MKV without using software like VLC media player or a similar tool.
The .MKV file is a Matroska Multimedia Container format. It is a free, open-standard container designed to hold an unlimited number of video, audio, picture, or subtitle tracks within one single file. Because it acts like an envelope for different codecs, it is the standard for high-definition video archiving, anime distribution, and Blu-ray rips. You can open .MKV files using versatile, open-source media players like VLC media player or MPlayer.
Despite its technical superiority, .MKV is notoriously difficult to use in standard environments. It is not supported by web browsers, natively rejected by iOS devices, and frequently fails to play on smart TVs and default operating system players (like Windows Media Player or macOS QuickTime). Furthermore, professional video editing software such as Adobe Premiere Pro dropped native support for the format entirely. Because .MKV files often bundle lossless audio and multiple image-based subtitle tracks, they frequently exceed 1GB in size, making them terrible for web delivery or quick sharing.
To ensure your video actually plays, you must convert it. For maximum compatibility on mobile devices, web browsers, and smart TVs, convert .MKV to MP4. If you need an optimized, open-source format for web embedding, convert to WEBM. For editing workflows, target MOV or MP4. Note that when converting from an .MKV container, you will likely lose secondary audio tracks and embedded subtitle files, as most target formats do not support complex multi-track nesting. Drop your file here to view and convert it securely right in your browser.
Use Convert.Guru to open and convert your MKV file.
Users also converted HEVC, EAC3, VLC, AV1, VIDEO, LARGE, H265, KMV, VR, MPV, MP4, TORRENT and MVP files.
If you want to convert MKV file to , you can use VLC media player or similar software from the "Multimedia Video Container" category. In the File menu, look for Save As… or Export….
To convert RMVB or TS files to MKV, try VLC media player or another comparable tool in the "Multimedia Video Container" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our MKV converter.