What the tool does, how to run it, and what to expect from the result.
MKV (Matroska) is a flexible container for films and screen recordings, often with several audio tracks. AVI is the classic Windows video container from cameras and older downloads. The video is decoded and re-encoded by ffmpeg running in your browser, so formats your browser cannot play are read too. Nothing is uploaded: the file never leaves your device.
Short, plain-language definitions for the formats and settings above.
A quick way to understand who this helps, what it solves, and where it connects next.
Anyone with an audio or video file in a format their app or device will not open.
Using the mkv to avi converter without installing anything or signing up.
Short answers for the questions people usually have before trying a utility like this.
No. The conversion runs in your browser tab, so nothing is sent to a server and there is no upload wait.
The video is re-encoded, which always costs a little; at the default setting the difference is hard to see. Long or 4K videos take a while in the browser, so trim first if you only need part.
Nearby tools from the catalog that fit the same job or workflow.
Turn a MKV clip into a looping GIF
Turn a MKV clip into a looping GIF. Free, in your browser, no upload.
Convert a MKV video to MOV
Convert a MKV video to MOV. Free, in your browser, no upload.
Extract WAV audio from a MKV video
Extract WAV audio from a MKV video. Free, in your browser, no upload.
Convert a AVI video to MKV
Convert a AVI video to MKV. Free, in your browser, no upload.
Turn a AVI clip into a looping GIF
Turn a AVI clip into a looping GIF. Free, in your browser, no upload.
Save AVI video frames as JPG images
Save AVI video frames as JPG images. Free, in your browser, no upload.
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Export MPEG-4 video with MP3 audio for older players and Windows tools.