Audio tool

Convert AAC Files to ALAC on Your Device

Convert AAC to ALAC in your browser for Apple lossless storage. The source remains on your device throughout local processing.

Route AAC → ALAC

or drop here · up to 500 MB

Preview (optional)

When your browser supports it, your audio plays here. You can still convert your file if preview does not load.

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Use upload name

Local conversion competes with other open apps for processor time during this AAC-to-ALAC job.
Duration, resolution, and source bitrate affect how quickly AAC is processed.
Review the beginning and end of ALAC after the download finishes.

ALAC serves Apple Music libraries and lossless archives, whereas AAC commonly serves streaming, mobile playback, and compact delivery.
For AAC-to-ALAC delivery, plan for weaker support outside Apple ecosystems.
After leaving AAC, the receiving app must support the streams encoded inside ALAC, not only its extension.

AAC to ALAC taking too long? Free local memory and keep the conversion tab in the foreground.
ALAC converted from AAC not opening? Test a compatible player and inspect the output streams.
Check whether the receiver supports this ALAC variant: weaker support outside Apple ecosystems.

When does AAC to ALAC conversion make sense?

It is useful when AAC media created for efficient distribution must enter a ALAC system designed for Apple lossless storage.

Where is the AAC source processed?

The browser prepares ALAC from AAC on this device instead of sending the source to a remote conversion server.

How can I approve ALAC converted from AAC?

Test the ALAC file in the receiving app and compare duration, channels and loudness with the AAC source.

Quick use cases