Step 1: Supply your MKV files using the button above or by haul and lay.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Get your converted AVI files.
MKV to AVI Conversion FAQ
What does the MKV to AVI converter do?
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Converting modern MKV into AVI is useful for older editing software or legacy playback hardware. The converter remuxes or re-encodes as needed; expect a larger file because legacy codecs compress less efficiently.
Will resolution and frame rate be preserved in the AVI?
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Yes. MKV → AVI keeps resolution, frame rate, and aspect ratio unchanged by default. To change them, use the Resize or Speed tool on the result.
Is the MKV to AVI conversion reversible?
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You can convert the AVI back to MKV on this site. If either format involved is lossy, the round-trip is not bit-perfect even though it is visually or audibly close.
Will the converted AVI be a different size than the MKV?
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Modern codecs compress better, so AVI from a legacy MKV is typically 30-60% smaller at equivalent quality. Conversions in the opposite direction can grow the file.
What happens to the subtitle tracks in my MKV file?
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They cannot stay selectable, because AVI has no soft-subtitle stream to hold them. There are two ways out: burn them into the video during conversion, which makes them permanent and unstyleable, or export them as a separate .srt alongside the AVI for the player to load. The converter tells you which it did rather than dropping them silently. AVI has no native support for modern codecs, variable frame rate, soft subtitles or files over 4 GB without hacks, and its per-chunk overhead bloats the file.
My MKV files came from ripping discs — will they convert cleanly?
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Cleanly, yes, but check what is inside first. A rip usually carries more than the picture — often several audio languages, sometimes a subtitle track or chapter marks — and whether those survive depends entirely on what the AVI can hold, not on the rip. The other thing to know is that the encode already happened: the ripper chose a bitrate years ago and no conversion can recover detail it discarded, so if the discs are still around, re-ripping beats re-encoding. MKV is Matroska, an open container designed in 2002 with no licensing restrictions and no ceiling on what it can hold.
What happens to 5.1 surround audio when converting MKV to AVI?
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It is downmixed to stereo, because AVI has no dependable multichannel path. The fold-down uses the standard ITU coefficients so dialogue in the centre channel stays intelligible and the surrounds come in at reduced level rather than vanishing. Anything that relied on discrete channel placement is gone after that.
Why would I convert MKV to an older format like AVI?
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Because a lot of hardware never learned anything newer and never will. DVD players, in-car head units, camcorder playback modes, industrial displays and plenty of broadcast ingest equipment accept AVI and nothing else. The conversion is a deliberate step down in efficiency, bought in exchange for working on a device that has no other option. AVI is trivially simple, which is exactly why ancient camcorders, capture cards, DVD ripping tools and Windows-era software all still emit it.
Is there a file-size limit when converting MKV to AVI?
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Anonymous uploads are capped at a generous default; signed-in free accounts get a higher cap, and Pro accounts have no per-file limit. Browser memory is usually the practical constraint long before our server-side limits kick in.
Can I batch-convert several MKV files to AVI at once?
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Yes. Drop or pick multiple MKV files in one upload — the converter processes them in parallel and returns a ZIP of the AVI results. There is no need to repeat the upload step per file.
What happens to my MKV files after the conversion?
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Uploaded files and AVI outputs are auto-deleted after a short retention window. We do not inspect, share, or train on user files. Direct download links are time-limited and tied to your session.
Will my AVI play on phones, tablets, and TVs?
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AVI plays in most desktop players but is sometimes unsupported on mobile and TV. For broadest reach, consider MP4 instead.
