Convert MKV to AVI — Free, No Upload
Runs entirely in your browser. Nothing is sent to any server.
Video
Audio
Why convert MKV to AVI?
AVI is needed for older Windows software, DVD authoring tools, and some legacy media players that pre-date MKV support. Converting from MKV preserves your video while making it compatible with those older systems.
What is MKV?
MKV (Matroska) is a container that can hold multiple audio tracks, subtitles, and chapters. Popular for high-quality movie and TV rips.
What is AVI?
AVI (Audio Video Interleave) is a legacy Microsoft format from 1992. Still common in old home videos and CCTV recordings.
Frequently asked questions
Is this MKV to AVI converter really free?
Yes, completely free. No account, no credit card, no watermark, no file size limit imposed by a paywall. Convifi is free to use forever.
Is my file safe when I convert MKV to AVI?
Your file never leaves your device. All conversion happens locally in your browser using WebAssembly. There is no upload to any server — not even Convifi's.
Does this work on iPhone, Mac, and Windows?
Yes. Because it runs in the browser, it works on any device — iPhone, Android, Mac, Windows, or Linux — as long as you have a modern browser like Chrome, Safari, Firefox, or Edge.
How long does MKV to AVI conversion take?
Conversion time depends on your file size and device. Most files convert in under 30 seconds. Longer videos or high-resolution images may take a minute or two. Nothing is being sent over the network, so your connection speed has no effect.