MP3 to M4A converter
To convert MP3 to M4A, drop your MP3 file in the box below. It converts straight away; press Download to save the M4A. It all happens in your browser, so your file stays on your device.
Convert to
Converted on this device, never uploaded
What changes
| MP3 to M4A | What happens |
|---|---|
| Codec | AAC |
| Quality | 96, 128 (default) or 192 kbps |
| Mono | Optional, for speech |
| Trim | Choose the part to keep on the timeline |
| Where it happens | In your browser; the file is never uploaded |
How to convert MP3 to M4A
- Add your MP3. Drop the file in the box, or click to choose it. It becomes M4A straight away.
- Check the result. Look at the preview and the size. The defaults are right for most files.
- Download. Press Download to save the M4A.
Why M4A
M4A (AAC) is what iPhones, iTunes and Apple Music use; it sounds a little better than MP3 at the same size.
Questions
No. The MP3 is decoded and encoded again as AAC; what MP3 removed cannot come back. Choose Best (192 kbps) to lose as little as possible.
Trim it to under 30 seconds first, then rename the file to .m4r for an iPhone ringtone.
This browser has no AAC encoder. Chrome, Edge and Safari have one.
No. The conversion happens right in your browser, so your file stays on your device. There is no account to make, either.