How to use AAC to MP3 Converter
- Drop one or more AAC files into the box.
- Choose the MP3 bitrate (192 kbps is a good default).
- Download each MP3, or all of them as a ZIP.
About this tool
AAC is a lossy format that sounds better than MP3 at the same bitrate and is used by Apple and streaming services. It is mostly used for streaming and mobile devices. MP3 is smaller and plays on almost every device, car stereo and phone.
Your browser decodes the AAC file and an MP3 encoder runs on your device, so nothing is uploaded. Converting between two lossy formats loses a little more quality, so keep the original if you may need it later.
Whether your browser can open the input depends on its built-in codecs. If a file will not decode, try another browser such as Chrome or Firefox.
Frequently Asked Questions
- What bitrate should I choose?
- 192 kbps gives very good quality for music. Use 128 kbps for speech or to save space and 320 kbps for the highest MP3 quality.
- Are my files uploaded?
- No. Everything is processed in your browser.
- Will the MP3 sound worse than the AAC?
- Each lossy conversion removes a bit more detail, so choose a high bitrate to limit the loss.
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