FREE CONVERTER · ON YOUR DEVICE
Convert M4A to MP3
Add your M4A file below and press the button: Cocuyo converts it to MP3 right in your browser, for free and with no watermark. MP3 is already selected as the output. You have an iPhone voice memo or a song in M4A and your car, a speaker or some software only takes MP3.
- Free, no watermark
- Your files never leave your device
- MP3 pre-selected
HOW TO DO IT
Three steps.
Add your M4A file
Drop it on the box or choose it. Up to 10 audio files at once, up to 100 MB and 15 minutes each.
Check that MP3 is selected
MP3 comes pre-selected. Change the quality (128 to 320 kbps) if you need to.
Download the MP3
Press the button and download each file, or all of them in a ZIP when there are several.
FORMATS
M4A vs MP3: what changes
You have an iPhone voice memo or a song in M4A and your car, a speaker or some software only takes MP3. Both formats are lossy: converting does not improve quality. Use 192 kbps or more to avoid extra loss.
| Feature | M4A | MP3 |
|---|---|---|
| What it is | AAC audio in an MP4 container (iPhone voice memos, iTunes). | Compressed audio. |
| Compression | Lossy, a little more efficient than MP3. | Lossy: about 1.4 MB per minute at 192 kbps. |
| Transparency, animation or sound | Sound only. | Sound only. |
| Compatibility | Very good on Apple and phones; some older devices and software only take MP3. | Universal: phones, cars, speakers and websites. |
| Best for | Music and voice notes on your phone. | Music, podcasts and audio to share. |
M4A to MP3: common questions
Does converting M4A to MP3 lose quality?
Both formats are lossy: converting does not improve quality. Use 192 kbps or more to avoid extra loss.
How many files can I convert at once?
Up to 10 audio files at once, up to 100 MB and 15 minutes each.
Does it work on a phone?
Yes, in current mobile browsers (Chrome, Safari, Edge, Firefox). Large files take a little longer on a phone, and the tab should stay open until the download is ready.
Are my files uploaded to a server?
No. The conversion happens inside your browser: the file is read and processed on your device and is not sent to Cocuyo or to any third party. You can check it in your browser’s network tools: your file is not sent.
Is it really free?
Yes. You can try it before signing up; to download the result we ask for a free account, with no subscription. Your free account comes with 30 welcome uses; after that, each use costs 1 credit (top-ups from US$1), and they are unlimited with Basic or Pro. It never adds a watermark.
Learn how to…
MORE CONVERSIONS