Convert AC3 to ALAC
AC3 is great for home theatre and surround sound, but ALAC is the better choice for lossless music libraries on iPhone, iPad and Mac. Convert AC3 to ALAC 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 ALAC
- 1
Tap Choose files and select one or more AC3 files (or drag them in).
- 2
Check that ALAC 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 ALAC downloads automatically. Converting several files? Grab them all as a ZIP.
AC3 vs ALAC
ALAC 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 ALAC.
| AC3 | ALAC | |
|---|---|---|
| Full name | Dolby Digital (AC-3) | Apple Lossless Audio Codec |
| Type | Audio | Audio |
| Compression | Lossy | Lossless |
| Developed by | Dolby Laboratories | Apple |
| Introduced | 1991 | 2004 |
| Plays on iPhone | ◐ Partly / with an app | ✓ Yes |
| Plays on Android | ◐ Partly / with an app | ◐ Partly / with an app |
| Plays on Windows | ✓ Yes | ◐ Partly / with an app |
| Plays on Mac | ✓ Yes | ✓ Yes |
About AC3 and ALAC
AC3: AC3 is Dolby Digital surround sound, used on DVDs, Blu-rays and TV broadcasts. It supports up to 5.1 channels.
ALAC: ALAC is Apple's lossless format. It compresses audio to roughly half the size of WAV with zero quality loss and plays natively in Apple Music, iTunes and on every iPhone. It is saved with the .m4a extension.
Frequently asked questions
How do I convert AC3 to ALAC on my phone?
Will converting AC3 to ALAC reduce quality?
Is this AC3 to ALAC converter free?
Are my files uploaded to a server?
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