MKV to AVI Offline Converter
Convert MKV videos to AVI format completely offline in your browser
No Upload
100% Private
Free
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Drop your MKV files here
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Output Files
Why Use This Tool
Wide Compatibility
AVI plays on legacy Windows software and older media players.
Editing-Friendly
AVI is well-supported by older video-editing software and DVD authoring tools.
100% Private
No upload required. All processing happens in your browser.
Frequently Asked Questions
Why convert MKV to AVI?
AVI is an older container format that works with legacy Windows software, older DVD players, and some video editors that do not support MKV.
Are my files uploaded anywhere?
No. Processing is entirely client-side via FFmpeg.wasm — files never leave your browser.
How big can my files be?
Limited by your device's RAM. ~2GB on desktop, smaller on mobile. Browser memory is the constraint.