Citrus / Convert / MP3 to AAC

Convert MP3 to AAC on Mac, offline

Need to turn a .mp3 file into AAC? Citrus converts MP3 to AAC right on your Mac, offline, using Apple's own engines. Nothing is uploaded to any server, which matters for client work, private photos and contracts.

Get Citrus, from $10 up

From $10 and up. For macOS 13+, Apple silicon.

What to expect

How to convert MP3 to AAC

  1. Open Citrus from the menu bar (the citrus slice icon).
  2. Drop your .mp3 file, or several, into the window. You can also drag a file onto the menu bar icon to open the quick wheel.
  3. Choose AAC as the output format and adjust options if you want, like size, quality or resolution.
  4. Press Convert. Your new files appear next to the originals, and the originals are never changed.

About the formats

MP3: MP3 is the classic lossy audio format that plays everywhere.

AAC: AAC is a lossy audio codec that gives good quality at small sizes.

Frequently asked questions

Is my file uploaded anywhere?

No. Citrus runs entirely on your Mac. Files are read and written locally and never sent to a server.

Can I convert many MP3 files at once?

Yes. Drop a whole batch into Citrus and convert them all to AAC in one go. Originals are never changed.

Does Citrus need an internet connection to convert MP3 to AAC?

No. It works fully offline after you download it.

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