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
{# Per-pair FAQ synthesizer (png/faq_synth.py).
Branches on raster/vector, lossy/lossless, alpha-channel,
animation, and codec family so 831 conversion pairs ship
substantively different FAQ content. Documented in
~/seo/playbook/02-faq-synthesizer-pattern.md. #}
What does the AIFF to MKV converter do?
+
It converts a AIFF file into MKV format.
Will the data inside my AIFF be preserved when converting to MKV?
+
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?
+
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?
+
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?
+
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 AIFF files to MKV at once?
+
Yes. Drop or pick multiple AIFF files in one upload — the converter processes them in parallel and returns a ZIP of the MKV results. There is no need to repeat the upload step per file.
What happens to my AIFF files after the conversion?
+
Uploaded files and MKV 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 MKV play on phones, tablets, and TVs?
+
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?
+
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?
+
No. AIFF to MKV conversion is free and works without an account. Signing in unlocks higher file-size caps, batch history, and API access.
Is there an API for AIFF to MKV conversion?
+
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?
+
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.