FormatDrop
How-To Guide

How to Convert FLAC to AIFF

FLAC is the universal lossless audio format; AIFF is Apple's native uncompressed audio format used in Logic Pro, Final Cut Pro, and Core Audio frameworks. Converting FLAC to AIFF is lossless — the audio samples are preserved exactly. The conversion is essentially a decompression: FLAC's compression is removed and the raw PCM is wrapped in an AIFF container.

Open FLAC to AIFF Converter

Step-by-step instructions

  1. 1

    Upload your FLAC file

    Select your .flac file. FLAC files from any source — CD rips, streaming downloads (Tidal, Qobuz), or your own recordings — convert cleanly.

    Go to converter
  2. 2

    Choose AIFF as output format

    Select AIFF. The converter decompresses FLAC to PCM and wraps it in an AIFF container. Bit depth and sample rate match the source — typically 16-bit/44.1 kHz for CD content or 24-bit/96 kHz for hi-res.

  3. 3

    Download and import to Logic

    Drag the AIFF into Logic Pro, GarageBand, or Final Cut Pro. AIFF is Apple's preferred native audio format and loads with zero processing overhead.

Why convert FLAC to AIFF?

FLAC is the world's lossless format; AIFF is Apple's lossless format. Converting between them is lossless and routine for anyone working in macOS audio production.

Your files never leave your device

FormatDrop runs the conversion engine entirely inside your browser using WebAssembly. No file upload. No server. Nothing stored. You can verify this by opening DevTools → Network tab and watching: zero upload requests.

Frequently asked questions

Is FLAC to AIFF lossless?
Yes — both FLAC and AIFF store the same audio losslessly. FLAC compresses; AIFF doesn't. Converting between them is a bit-for-bit lossless operation. The audio samples in the AIFF will be identical to those in the original FLAC.
FFmpeg command for FLAC to AIFF?
`ffmpeg -i input.flac -c:a pcm_s16be -map_metadata 0 output.aiff` for 16-bit. For 24-bit: `-c:a pcm_s24be`. AIFF uses big-endian PCM (be); WAV uses little-endian (le) — that's the only difference between the two.
Will metadata transfer from FLAC to AIFF?
AIFF supports metadata via ID3v2 tags or AIFF chunks (NAME, AUTH, ANNO). FFmpeg copies basic tags (title, artist, album) automatically. Album art and complex metadata may require manual transfer with a tool like Mp3tag.
Convert FLAC to AIFF Now — Free

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