Convert AC3 to ALAC
Convert your AC3 audio files to ALAC directly in your browser.
How to convert audio in 3 steps
Choose a AC3 audio file.
Click convert to ALAC.
Download your ALAC audio.
Format descriptions
AC3 — AC3 (Dolby Digital) is the standard audio codec for DVD, Blu-ray and home theater. It supports up to 5.1 channels of surround sound.
ALAC — ALAC (Apple Lossless) is Apple's lossless audio codec. It compresses without loss and is fully compatible with Apple devices.
Technical comparison: AC3 vs ALAC
Technical breakdown of the AC3 and ALAC specifications: compression, colour, transparency and animation support.
| Property | AC3 | ALAC |
|---|---|---|
| Specification | AC3 (Dolby Digital Audio Codec) | ALAC (Apple Lossless Audio Codec) |
| Media type | Audio | Audio |
| Compression | Lossy · AC-3 (up to 5.1) | Lossless · ALAC |
| Color space / bit depth | 16/20/24-bit 5.1 | 16/24-bit up to 192 kHz |
| Transparency | Not applicable | Not applicable |
| Animation | No (static) | No (static) |
| Best for | AC3 (Dolby Digital) is the standard audio codec for DVD, Blu-ray and home theater. It supports up to 5.1 channels of surround sound. | ALAC (Apple Lossless) is Apple's lossless audio codec. It compresses without loss and is fully compatible with Apple devices. |
What happens when converting AC3 to ALAC?
The AC3 data is decoded inside your browser with WebAssembly and re-encoded to the ALAC specification, so no file is ever uploaded to a server. Both formats rely on comparable compression, so file size and perceived quality stay in the same range.
Frequently Asked Questions
What is audio conversion?
Audio conversion changes an audio file from one format to another, for example from AC3 to ALAC, while keeping the audio content.
Are my audio files uploaded?
No. This tool processes audio files directly in your browser. Your audio files are never sent to a server.
Which audio formats are supported?
This tool converts AC3 audio files to ALAC, all in your browser.
Is it really free and unlimited?
Yes, the tool is completely free and you can convert as many audio files as you want, with no limits.
Does it work on mobile too?
Yes, it works on any modern device, including smartphones, tablets and desktop computers.
Which format will the result be in?
The converted file will always be in ALAC format, ready to download and use.
About the audio converter
Convert AC3 to ALAC audio online for free. Everything happens in your browser: your files are never uploaded to a server, and you need no downloads or sign-up to get started.
See also:
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