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M4A to AIFF - Online Audio Converter
Convert M4A to AIFF online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert M4A to AIFF
Drop M4A audio here or click to select
M4A
AIFF (PCM 16-bit)
About M4A to AIFF
Convert M4A to AIFF. M4A is the MPEG-4 audio container usually holding AAC or ALAC. AIFF is Apple's IFF-based counterpart to WAV with PCM audio. Metadata support is thinner than WAV's; check tags after conversion..
Why convert M4A to AIFF?
- Larger files than lossy shares with AIFF uncompressed quality.
- Keep quality where supported.
- Private, no upload - runs in your browser.
M4A vs AIFF
| Codec | AAC | PCM 16-bit |
|---|---|---|
| Compression | lossy | uncompressed |
| Sample behavior | Quality set by bitrate | Full quality kept |
| Typical use | M4A is the MPEG-4 audio container usually holding AAC or ALAC. | AIFF is Apple's IFF-based counterpart to WAV with PCM audio. |
When not to convert M4A to AIFF
- Skip AIFF for the smallest share: lossless output stays large, so prefer a lossy target when sending M4A files.
- Keep a master copy: repeated exports stack small losses, so archive M4A before batch AIFF shares.
Limits
Starting point: M4A - M4A is the MPEG-4 audio container usually holding AAC or ALAC. Check whether the track is AAC or ALAC before picking settings. Metadata support is thinner than WAV's; check tags after conversion. Encode AIFF (PCM 16-bit) from M4A 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 M4A to AIFF?
Drop your M4A file onto this page, choose quality and codec settings, then click Convert. The result downloads as AIFF instantly. All processing runs in your browser.
What codec is used for AIFF?
The default codec for AIFF is PCM 16-bit. 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.