AIFF to FLAC Converter
Convert Apple AIFF to lossless FLAC — same audio quality, significantly smaller file, better metadata support.
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Max file size: 200 MB
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Output formats shown are based on the file you upload — you may see additional options.
About AIFF
AIFF (Audio Interchange File Format) is Apple's uncompressed audio format — the Mac equivalent of WAV. It stores raw PCM data, making it the working format in Logic Pro, GarageBand, and Pro Tools on macOS. AIFF files are large: a 3-minute stereo track at CD quality is around 30 MB.
About FLAC
FLAC is lossless compression for audio. The decoded output from a FLAC file is bit-identical to the original uncompressed audio — nothing is removed. FLAC files are 40–60% smaller than equivalent WAV or AIFF files. They also support proper metadata tags (artist, album, track number, artwork), which AIFF handles inconsistently across different software.
When to convert AIFF to FLAC
AIFF is great for editing but large for archiving. If you export stems or masters from Logic Pro as AIFF and want to archive them compactly without losing quality, converting to FLAC is the right move. Storage for a large AIFF library is roughly halved. The metadata improvement matters too — FLAC tags are reliably read by music players, streaming services, and archival software, while AIFF tagging can be inconsistent. If you are submitting audio to a platform that accepts FLAC for lossless streaming (Tidal, Qobuz, Bandcamp), this is also the conversion to use. Like WAV-to-FLAC, this is a lossless-to-lossless conversion: no quality is lost.
Frequently Asked Questions
Common questions about QuickAudioConvert.
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Last updated: March 1, 2025