Audio tool

Convert PCM Files to ALAC on Your Device

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

Route PCM → 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

Local conversion competes with other open apps for processor time during this PCM-to-ALAC job.
Long PCM files consume more memory and take longer to decode.
Confirm the ALAC output meets the receiving system’s technical limits.

ALAC serves Apple Music libraries and lossless archives, whereas PCM commonly serves audio engineering, interchange, and analysis.
For PCM-to-ALAC delivery, plan for weaker support outside Apple ecosystems.
After leaving PCM, the receiving app must support the streams encoded inside ALAC, not only its extension.

PCM to ALAC taking too long? Close other demanding apps, then test a short sample before the full file.
ALAC converted from PCM not opening? Test a compatible player and inspect the output streams.
Inspect the generated streams when an app recognizes ALAC but refuses playback.

When does PCM to ALAC conversion make sense?

It is useful when PCM media created for uncompressed sample data must enter a ALAC system designed for Apple lossless storage.

Where is the PCM source processed?

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

How can I approve ALAC converted from PCM?

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

Quick use cases