How to use M4A to MP3 Converter
- Drop one or more M4A 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
M4A is an MPEG-4 audio container, most often holding AAC or Apple Lossless audio. It is mostly used for iTunes purchases and voice memos. MP3 is smaller and plays on almost every device, car stereo and phone.
Your browser decodes the M4A 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 M4A?
- Each lossy conversion removes a bit more detail, so choose a high bitrate to limit the loss.
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