Convert AIFF to FLAC
Keep every bit of your AIFF but store it in about half the space. FLAC compresses losslessly, and the whole process runs in your browser.
Why convert AIFF to FLAC?
AIFF is Apple's uncompressed PCM format, the kind of file Logic Pro bounces and older iTunes rips leave you with: perfect audio, but big. FLAC keeps every sample and compresses the data, so it is the natural home for a growing AIFF library. If you are cataloging masters, feeding a media server like Plex or Roon, or archiving Logic sessions, FLAC cuts the disk footprint while staying bit-for-bit faithful. It also carries proper tags and cover art, which bare AIFF and WAV handle poorly, so your tracks stay labeled and searchable.
Quality and file size
FLAC is lossless, so the decoded audio is bit-for-bit identical to your AIFF, with zero quality change. The gain is purely size: a FLAC file is typically 50 to 60 percent of the uncompressed AIFF, because the compression packs the audio rather than discarding any of it. Playback is broad across modern players, phones, and hi-fi libraries. The gap is at the edges: some car head units and a few Apple apps still will not open FLAC natively, so keep a WAV or M4A copy for those spots.
AIFF to FLAC: common questions
Does FLAC lose any quality compared to AIFF?
No. FLAC is lossless, so it decodes back bit-for-bit identical to the AIFF. It compresses the data, it never discards any of it.
How much smaller will the FLAC be?
Usually a lot. A FLAC file is typically 50 to 60 percent of the AIFF size, depending on the music, with no change to the audio itself.
Where might a FLAC not play?
Most modern players and media servers handle it, but some car stereos and certain Apple apps still lack native FLAC support. Keep a WAV or M4A copy for those.
Is my file uploaded during conversion?
No. It runs entirely in your browser using FFmpeg in WebAssembly. Your AIFF never leaves your device, and we never see, store, or train on it.
Who makes this?
We're the small team behind Xport Studio, a private, fully offline app for AI vocals, stems, and mastering. These free tools are side experiments we wanted to share. No upsell, but if you're curious about the bigger thing, take a look.