Convert MP3 files to AAC format 100% locally in your browser.
Frequently Asked Questions
Simply drag and drop your MP3 audio file, select your preferred output bitrate quality, and click Convert. The processed file will download automatically.
No. All conversions happen entirely on your computer inside the browser using WebAssembly. Your private files are never sent over the internet.
About MP3 to AAC
Convert MP3 to high-fidelity AAC streams. AAC is the default audio format for Youtube, iPhones, and Nintendo consoles, offering cleaner high-frequency resolution at lower bitrates.