Convert AC3 to CAF
AC3 is great for home theatre and surround sound, but CAF is the better choice for iOS app sounds and Apple developer workflows. Convert AC3 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 AC3 to CAF
- 1
Tap Choose files and select one or more AC3 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.
AC3 vs CAF
CAF is lossless, but it can't restore detail already removed by AC3's compression — the file just gets bigger. Convert when an app or editor requires CAF.
| AC3 | CAF | |
|---|---|---|
| Full name | Dolby Digital (AC-3) | Core Audio Format |
| Type | Audio | Audio |
| Compression | Lossy | Lossless |
| Developed by | Dolby Laboratories | Apple |
| Introduced | 1991 | 2005 |
| Plays on iPhone | ◐ Partly / with an app | ✓ Yes |
| Plays on Android | ◐ Partly / with an app | ✕ No |
| Plays on Windows | ✓ Yes | ✕ No |
| Plays on Mac | ✓ Yes | ✓ Yes |
About AC3 and CAF
AC3: AC3 is Dolby Digital surround sound, used on DVDs, Blu-rays and TV broadcasts. It supports up to 5.1 channels.
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 AC3 to CAF on my phone?
Will converting AC3 to CAF reduce quality?
Is this AC3 to CAF converter free?
Are my files uploaded to a server?
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