AAC to MP3
Convert an AAC audio file to MP3 — choose the bitrate, preview the result, and download. Runs entirely in your browser; nothing is uploaded.
Input
Higher bitrate = better quality, bigger file. 128–192 kbps suits most music; 64–96 kbps is fine for speech.
MP3 audio
Upload a AAC file, pick a bitrate and press Convert to MP3. Everything runs in your browser — the file is never uploaded.
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Guides
What AAC to MP3 does
AAC (Advanced Audio Coding) is the codec behind most iTunes, YouTube and streaming audio, but plenty of players, car stereos and older devices only understand MP3. Upload your AAC file, pick an MP3 bitrate, and download a standard MP3 that plays almost anywhere. The conversion happens in your browser — your file is never uploaded.
How to use it
- Upload a AAC file.
- Choose a bitrate (128–192 kbps suits most music, 64–96 kbps is fine for speech) and optionally mix down to mono.
- Click Convert to MP3, preview the result, then download it.
Good to know
Converting between lossy formats can't add quality back — pick a bitrate at or above the original's for the best result. The file is decoded by your browser's built-in audio decoder, so if your browser can play the file, it can convert it. DRM-protected files can't be decoded.
Privacy
Decoding and MP3 encoding both run on your device. Nothing is sent to a server.