Convert AAC to MP3

AAC is technically better, MP3 is more widely accepted - car stereos, older players, upload forms with opinions. Re-encoding costs a little quality, so use a decent bitrate if the source is already modest.

Drop AAC file(s) to start

or click to browse

What is AAC?

MP3's designated successor and the audio in most video - YouTube, streaming services, broadcast, virtually every MP4. At a given bitrate it beats MP3 audibly, especially below 128kbps, and every phone and browser decodes it.

What is MP3?

The format that made digital music portable, and thirty years on it's still the safest bet that a file will simply play - any device, any car, any decade-old bit of hardware. It's lossy, its patents expired in 2017, and no browser has ever been able to write one, which is why encoding it here needs LAME.

Your files never leave your device · no magic required