Convert AAC to AIFF
A free, online converter from AAC to AIFF. Perfect-quality result. No sign-up, nothing uploaded.
Drop AAC files here
or choose files
AAC
Up to 500 MB per file. Stays on your device — never uploaded.
Why convert AAC to AIFF?
AAC — What YouTube, iTunes, and most streaming sites use. A modern step up from MP3.
AIFF — Apple's version of WAV. Top sound quality, large files.
One thing to keep in mind: a AAC file has already had some of its sound removed to keep the file small. Saving it as AIFF keeps what's there but cannot put the missing sound back. This kind of conversion is for when a program or app needs a AIFF file, not for making the song sound better.
All of this happens right inside your web browser. Your file stays on your phone or computer the whole time.
Frequently asked questions
No. AAC files have already had some sound removed to make them small. Saving them as AIFF keeps everything that is there now, but it cannot bring back the missing sound. AIFF is most useful when you start from a perfect-quality file in the first place.
Quick conversions
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