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Convert.m4a

Convert M4A to MP3 online

100% localFiles never leave your device — no upload, no account, no tracking.
About M4A to MP3

Convert M4A files — the AAC-based format from iTunes and voice recorders — into MP3 that plays on virtually any device. Choose a bitrate and we transcode it locally with ffmpeg.wasm.

The entire conversion happens in your browser. Your M4A file stays on your device, so personal recordings never leave it.

How it works
  1. 01

    Add an M4A

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

  2. 02

    Set bitrate

    Choose the MP3 bitrate for the converted file.

  3. 03

    Convert

    Click Convert to encode an MP3 locally in your browser.

  4. 04

    Download

    Save the MP3 file.

Features
adjustable bitratebroad compatibilitykeeps quality
Frequently asked
How does the M4A to MP3 converter work?
Convert M4A files — the AAC-based format from iTunes and voice recorders — into MP3 that plays on virtually any device. Choose a bitrate and we transcode it 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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