M4A to MP3
Convert M4A files to MP3 right in your browser. Your files never leave your device.
- No upload
- No account
- Free, no watermark
Drop M4A files here
Converted on this device. Nothing is uploaded.
How it works
How to convert M4A to MP3
Add your files
Drop M4A files into the box above, or press Choose files. You can add as many as you like.
Wait a moment
Each file is converted on your device as soon as you add it. Adjust the settings first if you need to.
Download
Save each file on its own, or download everything at once as a ZIP file.
Why
Why convert M4A to MP3?
iPhone Voice Memos and many Apple apps save M4A files, which some cars, players and upload forms do not accept. MP3 plays everywhere.
Compared
M4A and MP3 compared
| Property | M4A | MP3 |
|---|---|---|
| Full name | MPEG-4 Audio (usually AAC) | MPEG-1 Audio Layer III |
| Compression | Lossy (AAC), sometimes lossless (ALAC) | Lossy |
| Size per minute | About 1 MB at 128 kbps | About 1.4 MB at 192 kbps |
| Best for | iPhone voice memos and Apple Music downloads | Music, podcasts and voice recordings to share |
| Compatibility | Apple devices and most modern players; some older devices and apps do not support it | Plays on every device, car stereo and app |
Formats
About the formats
What is M4A?
M4A is an audio file in the MPEG-4 container, usually encoded with AAC. iPhone Voice Memos and many Apple apps save audio as M4A. Some car stereos, older players and upload forms only accept MP3.
What is MP3?
MP3 is the most widely supported audio format in the world. It uses lossy compression to make files roughly a tenth the size of uncompressed audio. At 192 kbps or higher most listeners cannot tell it apart from the original.
Questions
Questions and answers
Is it safe to convert my files here?
Yes. ConvertOrino converts your files with code that runs in your own browser. Nothing is uploaded to a server, nobody else can see your files, and they are gone as soon as you close the page.
Can I convert iPhone voice memos?
Yes. Share the voice memo to Files, then pick it here. Voice memos are M4A files and convert to MP3 in seconds.
Is the M4A to MP3 tool free?
Yes, completely free. There is no sign up, no watermark and no limit on the number of files.
Is there a file size limit?
There is no fixed limit, because your own device does the work. Very large files are limited by the memory of your device. Phones handle files of a few hundred megabytes, computers handle much more.
Does it work on iPhone, Android, Mac and Windows?
Yes. It works in any modern browser, including Safari, Chrome, Edge and Firefox, on phones, tablets and computers. Nothing needs to be installed.
Does it work offline?
Yes. Once the page has loaded, the conversion works without an internet connection, which also proves that your files are not sent anywhere.
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