M4A to MP3 Converter
Convert M4A audio from iPhone Voice Memos and iTunes to MP3. Private, in-browser conversion.
How to convert M4A to MP3
- 1
Choose your M4A files
Click the upload area or drag files onto it. Nothing is uploaded — files are opened locally.
- 2
Adjust the settings
Pick audio quality, then press the convert button.
- 3
Download the result
Save each file individually or everything at once as a ZIP.
Voice memos and Apple Music downloads use M4A, which some players, car stereos and editing apps don’t support. Convert them to MP3 for universal playback.
What is M4A?
M4A is AAC audio in an MPEG-4 container, used by Apple Music, iTunes, Voice Memos and many phone recorders.
What is MP3?
MP3 is the universal compressed audio format. It plays on every device, car stereo and music app with small file sizes.
Safe for confidential files
Unlike upload-based converters, ZapMorph processes files inside your browser tab. Your documents are never transmitted, stored or logged — close the tab and they’re gone.
Frequently asked questions
Is the m4a to mp3 converter free?
This is a Pro tool. With a free account you get one run a day to try it; Pro and Lifetime plans include unlimited use.
Are my files uploaded to a server?
No. The conversion runs entirely in your browser, so your files never leave your device. We only count how many files you convert — never their names or contents.
What is the maximum file size?
Up to 25 MB per file without an account, 50 MB with a free account, and 1 GB on Pro. Very large files also depend on your device’s memory.
Can I convert multiple M4A files at once?
Yes. Select several M4A files at once — up to 5 on the free plan or 50 on Pro — and download all results in a single ZIP.
Does it work on Mac, Windows, iPhone and Android?
Yes. It works in any modern browser — Chrome, Edge, Firefox and Safari — on desktop and mobile, with nothing to install.
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