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AIFF to ALAC (M4A) - Online Audio Converter
Convert AIFF to ALAC (M4A) online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert AIFF to ALAC (M4A)
Drop AIFF audio here or click to select
AIFF, AIF
ALAC (M4A) (ALAC)
About AIFF to ALAC (M4A)
Convert AIFF to ALAC (M4A). AIFF is Apple's IFF-based counterpart to WAV with PCM audio. ALAC is Apple's lossless codec stored inside M4A files. Stays bit-identical to WAV while tagging like AAC..
Why convert AIFF to ALAC (M4A)?
- Larger files than lossy shares with ALAC (M4A) lossless quality.
- Keep quality where supported.
- Private, no upload - runs in your browser.
AIFF vs ALAC (M4A)
| Codec | PCM 16-bit | ALAC |
|---|---|---|
| Compression | uncompressed | lossless |
| Sample behavior | Full quality kept | Full quality kept |
| Typical use | AIFF is Apple's IFF-based counterpart to WAV with PCM audio. | ALAC is Apple's lossless codec stored inside M4A files. |
When not to convert AIFF to ALAC (M4A)
- Skip ALAC (M4A) for the smallest share: lossless output stays large, so prefer a lossy target when sending AIFF files.
- Keep a master copy: repeated exports stack small losses, so archive AIFF before batch ALAC (M4A) shares.
Limits
Starting point: AIFF - AIFF is Apple's IFF-based counterpart to WAV with PCM audio. Metadata support is thinner than WAV's; check tags after conversion. Stays bit-identical to WAV while tagging like AAC. Encode ALAC (M4A) (ALAC) from AIFF at 256k for music or 128k for speech, starting from the master.
How conversion works
Conversion runs entirely in your browser with FFmpeg WASM. Files never leave your device.
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FAQ
How do I convert AIFF to ALAC (M4A)?
Drop your AIFF file onto this page, choose quality and codec settings, then click Convert. The result downloads as ALAC (M4A) instantly. All processing runs in your browser.
What codec is used for ALAC (M4A)?
The default codec for ALAC (M4A) is ALAC. You can change audio parameters in Advanced mode.
How do you store my files?
We do not store any processed audio. All conversion happens entirely in your browser using FFmpeg WASM.