AIFF FLAC
Free online converter

Convert AIFF to FLAC

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AIFF to FLAC converterFREE

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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How to convert AIFF to FLAC

  1. Add your .AIFF file - drop it in the box above or click to browse.
  2. Convert it to .FLAC in a few seconds.
  3. Download your new .FLAC file.

What to expect

  • Both formats are lossless, so the decoded audio is bit-for-bit identical; you can convert back to .aiff later with no quality penalty.
  • If your AIFF source is 24-bit, export FLAC at 24-bit - converting down to 16-bit reduces dynamic range.
  • AIFF metadata uses different tag chunks than FLAC's Vorbis comments; check your tags after converting.

Frequently asked questions

Will I lose audio quality converting AIFF to FLAC?
No. Both formats are lossless, so every audio sample is preserved exactly and the decoded output is bit-for-bit identical to the source.
How much smaller will the FLAC file be?
Typically around 60% of the AIFF size, though quiet or simple recordings compress more than complex ones.
Can I convert FLAC back to AIFF later?
Yes, with no quality loss - FLAC stores the full original signal, so round-tripping back to .aiff is lossless.
Does FLAC play on iPhone or in iTunes?
FLAC is not natively supported by iTunes or older iOS versions; use .aiff or .alac if you need Apple ecosystem compatibility.
Learn about the formats: .AIFF · .FLAC
Programs that convert AIFF: Blaze Media Pro · KORG AudioGate · VIP Video Converter · dBpoweramp family suite · xrecode · Nero Recode · X Lossless Decoder (XLD) · All2MP3 for Mac