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AAC to CAF - Online Audio Converter
Convert AAC to CAF online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert AAC to CAF
Drop AAC audio here or click to select
AAC
CAF (PCM 16-bit)
About AAC to CAF
Convert AAC to CAF. AAC is the MPEG-4 successor to MP3 used by YouTube and Apple Music. CAF is Apple's 64-bit container for large recordings beyond WAV limits. Few Windows tools open it; convert WAV for sharing..
Why convert AAC to CAF?
- Larger files than lossy shares with CAF uncompressed quality.
- Keep quality where supported.
- Private, no upload - runs in your browser.
AAC vs CAF
| Codec | AAC | PCM 16-bit |
|---|---|---|
| Compression | lossy | uncompressed |
| Sample behavior | Quality set by bitrate | Full quality kept |
| Typical use | AAC is the MPEG-4 successor to MP3 used by YouTube and Apple Music. | CAF is Apple's 64-bit container for large recordings beyond WAV limits. |
When not to convert AAC to CAF
- Skip CAF for the smallest share: lossless output stays large, so prefer a lossy target when sending AAC files.
- Keep a master copy: repeated exports stack small losses, so archive AAC before batch CAF shares.
Limits
Starting point: AAC - Efficient lossy audio for streaming services. Container variants (ADTS, MP4) need matching extensions on export. Few Windows tools open it; convert WAV for sharing. Encode CAF (PCM 16-bit) from AAC 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 AAC to CAF?
Drop your AAC file onto this page, choose quality and codec settings, then click Convert. The result downloads as CAF instantly. All processing runs in your browser.
What codec is used for CAF?
The default codec for CAF 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.