CAF to AAC - Online Audio Converter

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

Convert CAF to AAC

[+] Drop CAF audio here or click to select CAF

Output format

AAC (AAC)

Mode[i]

Simple Advanced

Quality[i]

Sample Rate[i]

Channels[i]

About CAF to AAC

Convert CAF to AAC. CAF is Apple's 64-bit container for large recordings beyond WAV limits. 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 CAF to AAC?

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

CAF vs AAC

Codec	PCM 16-bit	AAC
Compression	uncompressed	lossy
Sample behavior	Full quality kept	Quality set by bitrate
Typical use	CAF is Apple's 64-bit container for large recordings beyond WAV limits.	AAC is the MPEG-4 successor to MP3 used by YouTube and Apple Music.

When not to convert CAF to AAC

Skip AAC for archival masters: lossy compression discards detail, so keep the CAF original.
Keep a master copy: repeated exports stack small losses, so archive CAF before batch AAC shares.

Limits

Starting point: CAF - CAF is Apple's 64-bit container for large recordings beyond WAV limits. Few Windows tools open it; convert WAV for sharing. Container variants (ADTS, MP4) need matching extensions on export. Encode AAC (AAC) from CAF 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 CAF to AAC?

Drop your CAF 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.