FREE CONVERTER · ON YOUR DEVICE
Convert M4A to WAV
Add your M4A file below and press the button: Cocuyo converts it to WAV right in your browser, for free and with no watermark. WAV is already selected as the output. You want to edit an iPhone voice memo or an M4A recording in software that works better with WAV.
- Free, no watermark
- Your files never leave your device
- WAV 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 WAV is selected
WAV comes pre-selected. WAV is not compressed, so there is no quality to choose.
Download the WAV
Press the button and download each file, or all of them in a ZIP when there are several.
FORMATS
M4A vs WAV: what changes
You want to edit an iPhone voice memo or an M4A recording in software that works better with WAV. It is saved uncompressed at 44.1 kHz: much larger, but further edits do not lose quality.
| Feature | M4A | WAV |
|---|---|---|
| What it is | AAC audio in an MP4 container (iPhone voice memos, iTunes). | Uncompressed audio (PCM). |
| Compression | Lossy, a little more efficient than MP3. | Lossless: about 10 MB per minute in stereo at 44.1 kHz. |
| Transparency, animation or sound | Sound only. | Sound only. |
| Compatibility | Very good on Apple and phones; some older devices and software only take MP3. | Universal in editors and audio gear. |
| Best for | Music and voice notes on your phone. | Editing, mastering and archiving. |
M4A to WAV: common questions
Does converting M4A to WAV lose quality?
It is saved uncompressed at 44.1 kHz: much larger, but further edits do not lose quality.
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.
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