Audio tool

Convert M4A Files to ALAC on Your Device

Convert M4A to ALAC in your browser for Apple lossless storage. The source remains on your device throughout local processing.

Route M4A → ALAC

or drop here · up to 500 MB

Max 50 MB per file

Preview (optional)

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

Ready

Use upload name

Encoding speed depends on the processor available to this tab during this M4A-to-ALAC job.
Large M4A inputs may take several minutes on older hardware.
Check picture, sound, and timing in ALAC before removing the source.

ALAC serves Apple Music libraries and lossless archives, whereas M4A commonly serves Apple devices, podcasts, and compact music files.
For M4A-to-ALAC delivery, plan for weaker support outside Apple ecosystems.
After leaving M4A, the receiving app must support the streams encoded inside ALAC, not only its extension.

M4A to ALAC taking too long? Check available memory; long, high-resolution sources need substantially more.
ALAC converted from M4A not opening? Test a compatible player and inspect the output streams.
Use the receiving app’s documented ALAC profile when generic playback succeeds but import fails.

When does M4A to ALAC conversion make sense?

It is useful when M4A media created for everyday audio delivery must enter a ALAC system designed for Apple lossless storage.

Where is the M4A source processed?

The browser prepares ALAC from M4A on this device instead of sending the source to a remote conversion server.

How can I approve ALAC converted from M4A?

Test the ALAC file in the receiving app and compare duration, channels and loudness with the M4A source.

Quick use cases