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Convert.aac

Convert AAC to MP3 online

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

Convert AAC files into MP3 that plays on virtually any device or app. Choose a bitrate and we transcode locally with ffmpeg.wasm.

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

How it works
  1. 01

    Add an AAC

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

  2. 02

    Set bitrate

    Choose the MP3 bitrate for the output.

  3. 03

    Convert

    Click Convert to encode an MP3 locally with ffmpeg.wasm.

  4. 04

    Download

    Save the MP3 file.

Features
adjustable bitratebroad compatibilityplays anywhere
Frequently asked
How does the AAC to MP3 converter work?
Convert AAC files into MP3 that plays on virtually any device or app. Choose a bitrate and we transcode 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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