Compress lossless audio files for space. Every conversion runs locally on your Mac — your WAV files are never uploaded.
macOS 14 or later · Apple silicon · Free to try
WAV is an uncompressed, studio-quality audio format. MP3 is the universally supported compressed audio format. Compress lossless audio files for space.
PrivateRemix handles the WAV-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 WAV files stay on your Mac — no upload, no cloud, no account.
Drag a WAV 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.
WAV stores audio uncompressed for maximum fidelity, so files are large. Converting to MP3 shrinks them dramatically with little audible difference.
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 WAV files never leave the device — there is no server to upload to, and it works fully offline.
Yes. Drop in a batch of WAV files and PrivateRemix converts them all locally, saving each new MP3 next to its original.
Free to try. macOS 14 or later, Apple silicon.