Convert AAC to CAF
AAC is great for efficient music files and broadcast audio, but CAF is the better choice for iOS app sounds and Apple developer workflows. Convert AAC to CAF in seconds, right in your browser.
- No upload — 100% private
- Fast, lossless when possible
- Free & unlimited
- Works on iPhone & Android
Keep this tab open — the conversion runs on your device, nothing is uploaded.
Add more files above to keep converting.
How to convert AAC to CAF
- 1
Tap Choose files and select one or more AAC files (or drag them in).
- 2
Check that CAF is selected. Use Advanced options for bitrate, channels or trimming.
- 3
Press Convert. Everything happens on your device — no upload, no waiting in a queue.
- 4
Your CAF downloads automatically. Converting several files? Grab them all as a ZIP.
AAC vs CAF
CAF is lossless, but it can't restore detail already removed by AAC's compression — the file just gets bigger. Convert when an app or editor requires CAF.
| AAC | CAF | |
|---|---|---|
| Full name | Advanced Audio Coding (raw ADTS) | Core Audio Format |
| Type | Audio | Audio |
| Compression | Lossy | Lossless |
| Developed by | MPEG | Apple |
| Introduced | 1997 | 2005 |
| Plays on iPhone | ✓ Yes | ✓ Yes |
| Plays on Android | ✓ Yes | ✕ No |
| Plays on Windows | ✓ Yes | ✕ No |
| Plays on Mac | ✓ Yes | ✓ Yes |
About AAC and CAF
AAC: AAC is the successor to MP3 and the audio codec behind YouTube, iTunes and most streaming services. A .aac file stores the raw AAC stream without an MP4 wrapper.
CAF: CAF is Apple's flexible audio container used inside iOS and macOS apps and by GarageBand. Files can be any length and hold many codecs.
Frequently asked questions
How do I convert AAC to CAF on my phone?
Will converting AAC to CAF reduce quality?
Is this AAC to CAF converter free?
Are my files uploaded to a server?
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