Convert AVI to MKV and other video formats to AVI online, free

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AVI is the most compatible video format for Windows devices. You can upload it to Facebook and YouTube, but not to other mobile-based social media platforms like Instagram and TikTok.

AVI files tend to be larger in size (because they use less compression than video formats like MP4). The most compatible media player for AVI videos is VLC. AVI is not compatible with QuickTime (the default player on Apple devices). AVI stands for Audio Video Interleave. AVI files can contain audio and video content, as well as codecs for DVD and XVid.


MKV contains video, audio, and text files. You can upload MKV files to Facebook and YouTube, but not to mobile-based social media platforms like Instagram. It is compatible with VLC media player.

The Matroska Video or MKV supports an unlimited number of video, audio, and subtitle tracks. It is free to use and is best for independent creators. MKV files are not compatible with Mac and must be converted before they can be played on Apple's QuickTime Player.

How to Convert AVI to MKV:

Upload a file

Upload the AVI file you wish to convert. Just drag & drop it onto the page, or click the blue button to choose from a folder on your device (you can also add files from Dropbox, or even straight from a YouTube URL).

Convert your video

Choose MKV as the output format, by selecting from the dropdown list of file types. Then just press ‘Convert File’. It’s that easy!

Download (& Edit) your video

Hit the ‘Download File’ button to save your newly converted GIF file. You can also click the ‘Edit’ button to add text, auto-subtitles, progress bars, and more to your video. It’s super-easy, with VEED!


‘Convert AVI to MKV’ Tutorial


More than an AVI to MKV converter

With VEED, you can do so much more than just convert your video files to other formats. It is a powerful video editor that you can use online. You don’t even need to create an account! However, if you do sign up, you have the advantage of saving all your projects in one place in the cloud. Regardless, you will have access to all of VEED’s video editing tools, straight from your browser!

Choose AVI File
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