AAC to MP3 Converter

Converts AAC (Advanced Audio Coding) files to MP3 format. AAC is commonly used by Apple devices, iTunes, and YouTube. While AAC is technically superior to MP3 at the same bitrate, MP3 remains the most universally supported audio format.

What is it used for?

Converting iTunes/Apple Music downloads for non-Apple devices
Making AAC files playable on older MP3 players and car stereos
Audio sharing across different platforms and devices
Converting YouTube-ripped audio to universal MP3 format

Step-by-Step Guide

Upload your AAC file
Adjust audio bitrate in the settings panel
Click 'Convert to .MP3'
Preview the MP3 audio
Download the universally compatible file

How it works

Upload an AAC file. FFmpeg decodes the AAC audio and re-encodes to MP3 using LAME encoder. Preview and download the converted file. All processing is client-side.

Tips & Best Practices

Use 192kbps or higher to maintain good quality during conversion
AAC at 128kbps is roughly equivalent to MP3 at 160kbps
If the original AAC is high quality (256kbps+), use 320kbps MP3 to preserve it

Frequently Asked Questions

Why convert AAC to MP3?

While AAC is technically better, MP3 is supported by virtually every audio device and software ever made. If you need maximum compatibility, MP3 is the safest choice.

Will I notice a quality difference?

At 192kbps or higher, the quality difference between AAC and MP3 is negligible for most listeners. Converting does introduce a small generation loss.

Privacy & Security

This tool uses FFmpeg compiled to WebAssembly (WASM). The WASM binary (~25MB) is downloaded from a CDN on first use and cached by your browser. All file processing happens locally on your device - your files are never uploaded to any server. This makes it safe for sensitive, private, or confidential media files. Large files may take longer to process depending on your device's CPU and available memory.

AAC to MP3 Converter

Settings