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FLAC to AIFF Converter

Convert FLAC files to AIFF format online for free. No installation or registration required.

Quick Answer: How to Convert FLAC to AIFF

FLAC is the Free Lossless Audio Codec — compresses audio 30–50% with zero quality loss. AIFF is Apple's uncompressed audio format, the Mac-side counterpart to WAV. Converting between them re-encodes the media with AIFF's compression model, so output quality depends on the settings you pick in the converter. Run it free at practicalwebtools.com/convert/audio/flac-to-aiff: drop in your FLAC, adjust settings if you like, and download the AIFF — no signup, no upload, everything stays on your device.

FLAC vs AIFF: Which One and Why

FLAC is the Free Lossless Audio Codec — compresses audio 30–50% with zero quality loss, released open-source by Xiph.Org in 2001. AIFF is Apple's uncompressed audio format, the Mac-side counterpart to WAV, designed by Apple in 1988 from Electronic Arts' IFF standard. People reach for FLAC mainly for archiving CD collections, audiophile listening, studio masters distribution, while AIFF is the usual choice for professional music production on macOS, DJ software libraries, sample packs. FLAC's headline strength: perfect fidelity — the decoded output is identical to the source. AIFF's: bit-perfect quality. On the other side of the ledger, FLAC limitation: still 4–6× larger than 320 kbps MP3 — and AIFF limitation: same huge file sizes as WAV.

How to Convert FLAC to AIFF Online

  1. 1

    Add your FLAC file: Drag and drop it into the converter, or click to browse. FLAC files up to the size limit are accepted, and nothing is uploaded — processing runs locally in your browser.

  2. 2

    Set AIFF options: Pick your quality: the converter exposes the settings that matter for AIFF. Higher bitrates preserve more of the FLAC's detail at larger file sizes.

  3. 3

    Download the AIFF: Conversion runs on your device. When it completes, download the AIFF file — repeat for as many files as you need, free and unlimited.

Key Facts

  • FLAC: released open-source by Xiph.Org in 2001, lossless — decompresses bit-for-bit identical to the original.
  • AIFF: designed by Apple in 1988 from Electronic Arts' IFF standard, uncompressed PCM — same size as WAV at equal settings.
  • FLAC strength: perfect fidelity — the decoded output is identical to the source.
  • AIFF strength: bit-perfect quality.
  • FLAC limitation to know: still 4–6× larger than 320 kbps MP3.
  • AIFF limitation to know: same huge file sizes as WAV.
  • Under the hood: AIFF-C (compressed AIFF, the .aifc extension) can hold IMA/SDX2 codecs — rare today, but why some .aifc files are far smaller than expected

Format Background

FLAC

FLAC — released open-source by Xiph.Org in 2001. FLAC's MD5 checksum of the raw audio lets you verify an archive is still bit-perfect years later — no other common audio format does this

AIFF

AIFF — designed by Apple in 1988 from Electronic Arts' IFF standard. AIFF-C (compressed AIFF, the .aifc extension) can hold IMA/SDX2 codecs — rare today, but why some .aifc files are far smaller than expected

Frequently Asked Questions

Will converting FLAC to AIFF lose quality?

It depends on the formats: FLAC is lossless — decompresses bit-for-bit identical to the original and AIFF is uncompressed PCM — same size as WAV at equal settings. Any step from a lossless source into AIFF keeps everything; any lossy step re-encodes and discards some data.

Are my files uploaded anywhere during FLAC → AIFF conversion?

No. This converter runs on WebAssembly inside your browser — your FLAC file is read from disk, processed by your device's CPU, and the AIFF is written back locally. There is no server upload at any point, which also means no size-based throttling or waiting in queue.

What devices and apps play AIFF files?

Logic Pro, Ableton, Native Instruments, macOS Core Audio. Same huge file sizes as WAV — worth knowing before you standardize on it.

Can I convert several FLAC files at once?

Yes — the converter processes a queue of files in one session, each entirely on your device. Batch mode is handy when moving a library into AIFF; just remember each file re-encodes independently, so set your quality once and it applies to all.

Related Converters

FLAC to MP3FLAC to WAVFLAC to OGGFLAC to AACMP3 to AIFFWAV to AIFFOGG to AIFFAAC to AIFF

Further reading

Guides and explainers on the Practical Web Tools blog cover audio and video formats in depth — or browse every audio converters pair from the hub.