AIFF to MP3 Converter

Got a big AIFF file? This free converter compresses .aiff audio into a small, universal MP3 in seconds — no software or signup. Files up to 30MB are converted directly and nothing is stored after your download.

How to Convert AIFF to MP3

1. Upload your AIFF file

Drag a file onto the box above, or click to browse.

2. Choose MP3 and a bitrate

MP3 is already selected as the output. Pick a bitrate — 320 kbps for best quality, 192 or 128 kbps for smaller files.

3. Convert & download

Click Convert & Download. Your MP3 downloads automatically, ready to play anywhere.

Why Convert AIFF to MP3?

AIFF is Apple's uncompressed lossless format (like WAV) — pristine but huge, around 10 MB per minute. Converting to MP3 shrinks it to a fraction of the size for phones, sharing, and everyday listening. Since AIFF is lossless, the MP3 gets the best possible source; at 320 kbps it's transparent for almost all listeners. Keep the AIFF if you need a master.

Frequently Asked Questions

How do I convert AIFF to MP3?

Upload your .aiff file, choose MP3 and a bitrate, then click Convert & Download. The MP3 is created and downloaded automatically.

Will the MP3 sound as good as the AIFF?

At 320kbps, MP3 is transparent for almost all listeners — very close to the AIFF at a fraction of the size. MP3 is lossy, so it isn't a bit-perfect copy.

Why is AIFF so much bigger than MP3?

AIFF is uncompressed (about 10 MB per minute), while MP3 compresses audio to roughly a tenth of that.

Is the AIFF to MP3 converter free?

Yes — it's completely free, with no account, no watermarks, and no limit on how many files you convert.