AIFF to AAC - Online Audio Converter

Convert AIFF to AAC online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.

Convert AIFF to AAC

[+] Drop AIFF audio here or click to select AIFF, AIF

Output format

AAC (AAC)

Mode[i]

Simple Advanced

Quality[i]

Sample Rate[i]

Channels[i]

About AIFF to AAC

Convert AIFF to AAC. AIFF is Apple's IFF-based counterpart to WAV with PCM audio. AAC is the MPEG-4 successor to MP3 used by YouTube and Apple Music. Container variants (ADTS, MP4) need matching extensions on export..

Why convert AIFF to AAC?

Smaller files with AAC lossy compression.
Keep quality where supported.
Private, no upload - runs in your browser.

AIFF vs AAC

Codec	PCM 16-bit	AAC
Compression	uncompressed	lossy
Sample behavior	Full quality kept	Quality set by bitrate
Typical use	AIFF is Apple's IFF-based counterpart to WAV with PCM audio.	AAC is the MPEG-4 successor to MP3 used by YouTube and Apple Music.

When not to convert AIFF to AAC

Skip AAC for archival masters: lossy compression discards detail, so keep the AIFF original.
Keep a master copy: repeated exports stack small losses, so archive AIFF before batch AAC 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. Container variants (ADTS, MP4) need matching extensions on export. Encode AAC (AAC) 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 AAC?

Drop your AIFF file onto this page, choose quality and codec settings, then click Convert. The result downloads as AAC instantly. All processing runs in your browser.

What codec is used for AAC?

The default codec for AAC is AAC. 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.