MKV to AVI · Free

Convert MKV to AVI

Turn your MKV file into an AVI that plays where you need it, with nothing to install.

Free to start
Nothing to install
Up to 1GB

How it works

How to convert MKV to AVI

Upload your MKV file
Drag and drop a MKV file to turn into AVI, or click to browse. Anything under 1GB, and nothing is installed.
Confirm AVI as the output
AVI is already selected, so there is nothing to configure. Switch to another format in the panel if MKV needs to go somewhere else.
Convert and download
We convert the MKV on our servers, usually in under a minute. Create a free account to download the AVI.

Why convert MKV to AVI?

MKV (Matroska) is an open container that can hold any codec plus unlimited audio tracks, subtitle tracks and chapters. That flexibility makes it great for archives and useless for sharing.

The practical problem: Browsers, phones and social uploads reject MKV almost universally. Editing tools often refuse to import it, or import picture without audio. Nobody can preview it without installing VLC first.

AVI solves that. Widely readable by desktop players from the same era.

Container

MKVMatroska

AVIAudio Video Interleave (Microsoft)

Typical codecs

MKVAlmost anything: H.264, HEVC, AV1, VP9

AVIDivX, Xvid, MJPEG and other legacy codecs

Best for

MKVArchiving with multiple audio and subtitle tracks

AVIOpening archive footage from the 2000s

Plays on

MKVVLC and desktop players; rarely anywhere else

AVIDesktop players with the right codec pack

File size

MKVDepends entirely on the codec inside

AVIVery large for the quality

Feature	MKV	AVI
Container	Matroska	Audio Video Interleave (Microsoft)
Typical codecs	Almost anything: H.264, HEVC, AV1, VP9	DivX, Xvid, MJPEG and other legacy codecs
Best for	Archiving with multiple audio and subtitle tracks	Opening archive footage from the 2000s
Plays on	VLC and desktop players; rarely anywhere else	Desktop players with the right codec pack
File size	Depends entirely on the codec inside	Very large for the quality

FAQ

MKV to AVI questions

Is the MKV to AVI converter free?

Yes. Convert and preview the result for free, then create a free account to download it. There is no per-file charge and no watermark on the AVI itself beyond the free-plan badge.

Do I need to install any software?

No. The conversion runs on our servers and you use it from a browser tab, so it works the same on Windows, macOS, Linux, iPhone and Android. Nothing to install at either end. Where MKV plays: VLC and desktop players; rarely anywhere else. Where the AVI you get back plays: Desktop players with the right codec pack.

Does converting MKV to AVI reduce the quality?

Converting re-encodes the video, so it is not bit-for-bit identical. We encode at a high quality target, which keeps the result visually indistinguishable from the MKV on normal viewing. What changes is the container and the codec. AVI holds: DivX, Xvid, MJPEG and other legacy codecs. Converting the same file back and forth repeatedly will eventually show, so keep your original.

How large a file can I convert?

Anything under 1GB per upload, which is more footage in some formats than others. MKV: Depends entirely on the codec inside. AVI coming back: Very large for the quality. For anything bigger, trim or compress it first, both are free tools here.

Is my file kept private?

Your upload is processed and then held only as long as your project needs it. Nothing is published, indexed or shared unless you create a share link yourself.

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