Compress audiophile-grade tracks for mobile listening. Every conversion runs locally on your Mac — your FLAC files are never uploaded.
macOS 14 or later · Apple silicon · Free to try
FLAC is a lossless format prized by audiophiles. MP3 is the universally supported compressed audio format. Compress audiophile-grade tracks for mobile listening.
PrivateRemix handles the FLAC-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 FLAC files stay on your Mac — no upload, no cloud, no account.
Drag a FLAC 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.
MP3 is a compressed format, so there is a small, usually imperceptible quality trade-off in exchange for a much smaller file. PrivateRemix converts at a high quality setting to keep it minimal.
Technically yes — MP3 is lossy — but at a high bitrate the difference is inaudible to most listeners, and files become far smaller and more portable.
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 FLAC files never leave the device — there is no server to upload to, and it works fully offline.
Yes. Drop in a batch of FLAC files and PrivateRemix converts them all locally, saving each new MP3 next to its original.
Free to try. macOS 14 or later, Apple silicon.