Convert AAC to ALAC
AAC is great for efficient music files and broadcast audio, but ALAC is the better choice for lossless music libraries on iPhone, iPad and Mac. Convert AAC 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 AAC to ALAC
- 1
Tap Choose files and select one or more AAC 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.
AAC vs ALAC
ALAC 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 ALAC.
| AAC | ALAC | |
|---|---|---|
| Full name | Advanced Audio Coding (raw ADTS) | Apple Lossless Audio Codec |
| Type | Audio | Audio |
| Compression | Lossy | Lossless |
| Developed by | MPEG | Apple |
| Introduced | 1997 | 2004 |
| Plays on iPhone | ✓ Yes | ✓ Yes |
| Plays on Android | ✓ Yes | ◐ Partly / with an app |
| Plays on Windows | ✓ Yes | ◐ Partly / with an app |
| Plays on Mac | ✓ Yes | ✓ Yes |
About AAC and ALAC
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.
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 AAC to ALAC on my phone?
Will converting AAC to ALAC reduce quality?
Is this AAC to ALAC converter free?
Are my files uploaded to a server?
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