Convert AAC to ALAC — Free Online Converter
Convert Advanced Audio Coding (.aac) to Apple Lossless Audio Codec (.alac) online for free. Fast, secure audio conversion with no watermarks or registration.
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About AAC to ALAC Conversion
AAC is a lossy codec delivering transparent-sounding audio at 128-256 kbps, while ALAC (Apple Lossless Audio Codec) provides bit-for-bit perfect reproduction of the original audio. Apple open-sourced ALAC in 2011, and it has since become the preferred lossless format within the Apple ecosystem — iTunes, Apple Music, iPhone, iPad, HomePod, and AirPods Max all decode ALAC natively. Converting AAC to ALAC wraps the decoded audio in a lossless container, useful when you need an uncompressed-quality file that stays fully compatible with Apple devices.
Why Convert AAC to ALAC?
If your Apple Music library or iTunes collection contains AAC tracks and you want to archive them in a lossless format for future-proofing, ALAC is the logical choice. Unlike FLAC, ALAC files play natively on every Apple device without third-party apps. The M4A container (shared by both AAC and ALAC) means metadata, artwork, and chapter markers carry over seamlessly.
Common Use Cases
- Archiving an iTunes AAC library in lossless format for long-term preservation
- Preparing audio files for Apple Music upload where lossless is preferred
- Converting podcast AAC masters to ALAC before further editing in Logic Pro