Convert standard iTunes or Apple Music files into universally supported tracks. Every conversion runs locally on your Mac — your AAC files are never uploaded.
macOS 14 or later · Apple silicon · Free to try
AAC is the compressed audio format used by iTunes and Apple Music. MP3 is the universally supported compressed audio format. Convert standard iTunes or Apple Music files into universally supported tracks.
PrivateRemix handles the AAC-to-MP3 conversion in a couple of clicks, with the result saved right next to your original file.
Unlike free online converters, PrivateRemix has no server. Your AAC files stay on your Mac — no upload, no cloud, no account.
Drag a AAC file into PrivateRemix, or pick one from your Mac.
Select MP3 from the formats PrivateRemix offers for your file.
The new MP3 appears next to the original. Nothing leaves your Mac.
The change is minimal. Both formats are compressed, and PrivateRemix converts at a high quality setting so there is no visible or audible drop for everyday use.
AAC is slightly more efficient at the same bitrate, but MP3 wins on universal compatibility, which is why people convert to it.
Effectively yes. MP3 is the most widely supported audio format in the world, which is why it's the go-to for sharing.
No. PrivateRemix runs entirely on your Mac using its own processor. Your AAC files never leave the device — there is no server to upload to, and it works fully offline.
Yes. Drop in a batch of AAC files and PrivateRemix converts them all locally, saving each new MP3 next to its original.
Free to try. macOS 14 or later, Apple silicon.