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Convert.m4a

Convert M4A to WAV online

100% localFiles never leave your device — no upload, no account, no tracking.
About M4A to WAV

Convert M4A files — the AAC-based format from iTunes and voice recorders — into WAV that audio editors expect. We decode and write PCM WAV locally with ffmpeg.wasm.

The conversion runs entirely in your browser. Your M4A never leaves your device.

How it works
  1. 01

    Add an M4A

    Drop your M4A file onto the page or pick it from your device.

  2. 02

    Convert

    Click Convert to decode the M4A and write a WAV locally with ffmpeg.wasm.

  3. 03

    Download

    Save the WAV file.

Features
uncompressed outputedit-readywide compatibility
Frequently asked
How does the M4A to WAV converter work?
Convert M4A files — the AAC-based format from iTunes and voice recorders — into WAV that audio editors expect. We decode and write PCM WAV locally with ffmpeg.wasm.
Are my files uploaded to a server?
No. Everything runs entirely in your browser using local JavaScript and WebAssembly. Your files never leave your device.
Does it cost anything or require an account?
No. The converter is free, needs no sign-up, and runs locally in your browser.
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