Convert any AAC file to MP3 — free, private, entirely in your browser.
Click "Start Converting — Free" to launch the converter in your browser.
Drag and drop your AAC file or click to browse. Choose MP3 as the output format.
Conversion runs locally via WebAssembly. Download your MP3 file instantly.
Files never leave your device. AAC→MP3 conversion is 100% client-side.
No registration, no watermarks, no usage limits — ever.
Uses open-source FFmpeg compiled to WebAssembly for native-speed conversion.
Works in Chrome, Firefox, Edge, and Safari on desktop and mobile.
Convert multiple files using the built-in queue without reloading the page.
Yes. AnyConvert uses open-source FFmpeg via WebAssembly — no cost, no sign-up, no limits.
No. All conversion happens in your browser using WebAssembly. Your files never leave your device.
There is no server-side limit. The practical limit depends on your device's available memory — most files under 500 MB work fine.
AAC (Advanced Audio Coding) is a modern codec used by Apple, YouTube, and streaming services. MP3 offers broader compatibility with older devices and software.
Open AnyConvert in your mobile browser, select your AAC file, choose MP3 as output, and download. No app needed.