Convert CAF to M4A
CAF is great for iOS app sounds and Apple developer workflows, but M4A is the better choice for high-quality music and voice recordings for Apple and Android devices. Convert CAF to M4A 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 CAF to M4A
- 1
Tap Choose files and select one or more CAF files (or drag them in).
- 2
Check that M4A 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 M4A downloads automatically. Converting several files? Grab them all as a ZIP.
CAF vs M4A
M4A uses lossy compression, which makes the file much smaller than CAF. Choose High quality and the difference is inaudible for most listeners.
| CAF | M4A | |
|---|---|---|
| Full name | Core Audio Format | MPEG-4 Audio (AAC) |
| Type | Audio | Audio |
| Compression | Lossless | Lossy |
| Developed by | Apple | Apple / MPEG |
| Introduced | 2005 | 2001 |
| Plays on iPhone | ✓ Yes | ✓ Yes |
| Plays on Android | ✕ No | ✓ Yes |
| Plays on Windows | ✕ No | ✓ Yes |
| Plays on Mac | ✓ Yes | ✓ Yes |
About CAF and M4A
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.
M4A: M4A is an MPEG-4 container holding AAC audio. It sounds better than MP3 at the same size and is the default format for iPhone voice memos, Apple Music downloads and many Android recorders.
Frequently asked questions
How do I convert CAF to M4A on my phone?
Will converting CAF to M4A reduce quality?
Is this CAF to M4A converter free?
Are my files uploaded to a server?
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