ALAC to AIFF Converter

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

Quick Answer: How to Convert ALAC to AIFF

ALAC is Apple Lossless — FLAC's counterpart inside the MP4/M4A container. 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/alac-to-aiff: drop in your ALAC, adjust settings if you like, and download the AIFF — no signup, no upload, everything stays on your device.

ALAC vs AIFF: Which One and Why

ALAC is Apple Lossless — FLAC's counterpart inside the MP4/M4A container, released by Apple in 2004; open-sourced under Apache 2.0 in 2011. 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 ALAC mainly for Apple Music lossless streaming, ripping CDs for the Apple ecosystem, iPhone/local-library audiophile setups, while AIFF is the usual choice for professional music production on macOS, DJ software libraries, sample packs. ALAC's headline strength: perfect fidelity inside the iTunes/Apple Music pipeline. AIFF's: bit-perfect quality. On the other side of the ledger, ALAC limitation: no advantage over FLAC outside the Apple world — and AIFF limitation: same huge file sizes as WAV.

How to Convert ALAC to AIFF Online

  1. 1

    Add your ALAC file: Drag and drop it into the converter, or click to browse. ALAC 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 ALAC'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

  • ALAC: released by Apple in 2004; open-sourced under Apache 2.0 in 2011, lossless — roughly 40–60% of original size, comparable to FLAC.
  • AIFF: designed by Apple in 1988 from Electronic Arts' IFF standard, uncompressed PCM — same size as WAV at equal settings.
  • ALAC strength: perfect fidelity inside the iTunes/Apple Music pipeline.
  • AIFF strength: bit-perfect quality.
  • ALAC limitation to know: no advantage over FLAC outside the Apple world.
  • 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

ALAC

ALAC — released by Apple in 2004; open-sourced under Apache 2.0 in 2011. Apple Music streams ALAC up to 24-bit/192 kHz — but AirPods re-compress it to AAC over Bluetooth, so lossless is only audible on wired or Wi-Fi playback

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 ALAC to AIFF lose quality?

It depends on the formats: ALAC is lossless — roughly 40–60% of original size, comparable to FLAC 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 ALAC → AIFF conversion?

No. This converter runs on WebAssembly inside your browser — your ALAC 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.

Does the converter keep metadata (title, artist, cover art)?

Where the AIFF container supports it, standard tags are carried across. AIFF-C (compressed AIFF, the .aifc extension) can hold IMA/SDX2 codecs — rare today, but why some .aifc files are far smaller than expected

What AIFF settings should I choose?

For professional music production on macOS, start with the converter's default preset — it's tuned for the common case. If you need smaller files, step quality down gradually and listen or look at the result before batch-converting everything.

Related Converters

ALAC to MP3ALAC to WAVALAC to OGGALAC to AACMP3 to AIFFWAV to AIFFOGG to AIFFAAC to AIFF

Read More

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.