Step 1: Supply your AIFF 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 MKV files.
AIFF to MKV Conversion FAQ
What does the AIFF to MKV converter do?
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It converts a AIFF file into MKV format.
Will the data inside my AIFF be preserved when converting to MKV?
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Yes — the content is mapped to the MKV equivalent. Format-specific extras that MKV does not represent natively are omitted rather than corrupted.
Is the AIFF to MKV conversion reversible?
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You can convert the MKV back to AIFF on this site. If either format involved is lossy, the round-trip is not bit-perfect even though it is visually or audibly close.
How much smaller will the MKV be than my AIFF?
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Typically 5-10x smaller for images, 5-15x smaller for audio. Exact ratio depends on the chosen quality level and the content — flat solid-colour images and silent audio compress far more than detailed photos or busy soundtracks.
Is there a file-size limit when converting AIFF to MKV?
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Free conversions have a size limit per file, set by the type of file, and the page tells you when a file is over it. A paid plan removes that limit, so much larger files can be converted.
Can I batch-convert several AIFF files to MKV at once?
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Several files in one job need a paid plan. Free use is one file per conversion, one conversion an hour. On a paid plan you can add several files to one job, then download each result on its own or all of them in one ZIP.
What happens to my AIFF files after the conversion?
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Uploaded files are processed on our own conversion servers, nobody looks at them, and they are not shared. The upload and the converted file are both deleted automatically about 24 hours after the conversion, which leaves time to download the result. See /privacy/ for the full policy.
Will my MKV play on phones, tablets, and TVs?
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Yes — MKV uses modern codecs that play natively on iOS, Android, Smart TVs, game consoles, and every modern browser.
Do I need to install software to convert AIFF to MKV?
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No. The converter runs entirely in your browser plus our cloud — no plugin, no install, no admin rights. It works on Windows, macOS, Linux, ChromeOS, iOS, and Android.
Do I need an account to convert AIFF to MKV?
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Yes. One conversion an hour is free, with no account needed, for a file within the free size limit. A paid plan removes the hourly limit and the size limit, and lets you add several files to one job.
Is there an API for AIFF to MKV conversion?
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Yes. Every conversion this site offers is also exposed via a JSON API — see /api/ for endpoints, authentication, and rate limits. AIFF to MKV is one of the supported pairs.
What if my AIFF fails to convert to MKV?
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Failures are usually caused by corrupted source files or unsupported AIFF variants. Re-export from the original app and try again; if it still fails, the contact page forwards the file to support so we can diagnose.
