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Free converter

AVI to MKV

Anyfile converts an AVI video to a Matroska video for free, right in your browser: the file is never uploaded.

Files are converted in your browser and never uploaded. By using Anyfile you agree to the Terms of Use.

What changes from AVI to MKV

PictureCopied as it is when it fits; otherwise re-encoded by your browser at the same size and frame rate
SoundThe first sound track is kept
Subtitles and chaptersNot carried over yet
File sizeUsually smaller: MKV compresses more tightly than AVI

When to use MKV: Films and series with several audio languages and subtitle tracks.

Options

Open the file in the video editor to choose before downloading:

  • Quality: original, high, medium or small
  • Size: the original or smaller

The two formats

.avi

AVI videoAudio Video Interleave

Microsoft’s video container from 1992, part of Video for Windows. It interleaves audio and video and can use many codecs, such as DivX, Xvid or uncompressed frames.

Older downloads, digital cameras of the 2000s and legacy Windows software.

Opens in VLC, Windows Media Player, mpv, MPC-HC

About AVI files

.mkv

Matroska videoMatroska

An open container first released in 2002 and named after Russian nesting dolls. It holds any number of video, audio and subtitle tracks, plus chapters and attachments such as fonts.

Films and series with several audio languages and subtitle tracks.

Opens in VLC, mpv, IINA, Plex, Windows Media Player on Windows 10 and later

About MKV files

Questions

How do I convert AVI to MKV?

Drop your AVI file on this page, or choose it. Anyfile converts it on your device in a moment and the MKV downloads straight away. To change it first, open it in the video editor.

Is my AVI file uploaded anywhere?

No. The file is read and converted by your own browser, and nothing is sent to a server. You can check: open your browser’s developer tools, go to Network, and convert a file. No upload appears.

Can I convert several AVI files at once?

Yes. Drop them together and you get one ZIP with every MKV inside.