Convert MKV to AVI
Last updated: June 1, 2026To convert MKV to AVI, drop your MKV file into the converter above, then download the AVI result. It's free, needs no sign-up, and there's no watermark. Conversion runs in your browser with on-device FFmpeg, so your files never leave your device.
Why convert MKV to AVI?
Convert MKV to AVI when a player or program can't open the Matroska container but handles classic AVI. The conversion repackages your video into the older, widely-readable format.
- Playing an MKV on hardware that only supports AVI.
- Importing video into legacy software that rejects MKV.
- Producing a maximally-compatible file for old systems.
MKV vs AVI
MKV · Matroska Video
MKV (Matroska) is a flexible open container that can hold many video, audio and subtitle tracks in one file. It's popular for archiving, but doesn't play natively in many browsers or on some TVs.
AVI · Audio Video Interleave
AVI is an older Microsoft container. It's widely readable on desktops but produces large files and lacks modern features like streaming-friendly fast-start, so it's usually converted to MP4.
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Video Converter
Convert video to MP4, WebM, MOV, MKV, GIF or MP3.
Open Video ConverterMKV to AVI — frequently asked questions
How do I convert MKV to AVI?
Drop your MKV file (or several) into the converter, confirm AVI is selected as the output, click convert, then download the AVI file. The whole thing takes a few seconds.
Is this MKV to AVI converter free?
Yes — it's completely free with no watermark and no sign-up required.
Is it safe to convert MKV to AVI here?
Yes. Conversion runs on-device with FFmpeg compiled to WebAssembly, so your MKV file is never uploaded to a server.
Can I convert multiple MKV files at once?
Convert one MKV file at a time — finish one, then drop in the next.
Does it work on mobile?
Yes — the converter runs in any modern browser on phones, tablets and desktops.