VLC is the most popular open-source player because it includes almost every codec built-in, meaning you don't have to download extra files to play MKV. Go to the official VideoLAN website.
Once the installer (.exe for Windows or .dmg for Mac) downloads, double-click to open it. how to download mkv player
Below is a guide on how to download and install the best MKV players for every platform in 2026. VLC is the most popular open-source player because
The format is a "container" that can hold multiple audio tracks, subtitle streams, and high-definition video in a single file. Because default apps like Windows Media Player or QuickTime often lack the necessary codecs to open them, downloading a dedicated MKV player is essential for a smooth viewing experience. Below is a guide on how to download
Official download of VLC media player, the best Open Source player
Drag the traffic cone icon into your Applications folder to finish the install.
Click the orange button. For specific versions (like 64-bit), use the drop-down arrow.