How do I convert AVI to Matroska (MKV)?

Upload your AVI file using the box above, confirm Matroska (MKV) as the output format, then select Convert. The converted file is ready to download as soon as processing finishes — usually in a few seconds.

Is converting AVI to MKV free?

Yes, and there is nothing to sign up for. Every conversion is free, there is no paid tier, and the limits are the same for everyone.

Will the quality change when converting to Matroska (MKV)?

MKV uses lossy compression, so some data is discarded to keep the file small. The default quality setting is tuned to be visually or audibly transparent for most material, and you can raise it in the conversion settings.

What happens to my file afterwards?

The uploaded file is deleted as soon as the conversion completes, and the converted file is removed automatically once its retention window ends. Download links are signed and expire within minutes.

avimkv

Convert AVI to Matroska (MKV)

Free online converter for AVI files. Flexible container for high-quality video. Nothing to install, no watermark, and every file is deleted automatically.

Drag and drop your files

Upload a AVI file to convert it to Matroska (MKV). Up to 200 files at once, 10 GB each.

Free · up to 200 files · 10 GB each · files deleted automatically after 168 hours.

About AVI and MKV

AVI

Legacy container with broad desktop support.

video/x-msvideo

Matroska (MKV)

Flexible container for high-quality video.

video/x-matroska

Other AVI conversions

avi to mp4
avi to webm
avi to mov
avi to gif
avi to mp3
avi to wav
avi to flac
avi to ogg

Other ways to get Matroska (MKV)

mp4 to mkv
webm to mkv
mov to mkv