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WorkinTool Online M4A to MP3 Converter

Failed to email large M4A files? Want to convert Apple's proprietary file format to a more compatible MP3 file? Try WorkinTool's free audio converter to turn M4A into MP3 online in seconds!
Transform M4A files in bulk
Completely free with no ads
Four M4A files at a time, up to 20M.
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Select file or drop file here
Your files are secure

How to Convert M4A to MP3 Online?

Step 1
Upload your M4A file(s) to this online.
Step 2
Click Convert to start converting.
Step 3
Export the MP3 files to your PC.

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What is an M4A File?

M4A is a file that uses MPEG-4 codec to hold audio data. It is very similar to MP4 but does not contain videos. This file format is often found in Apple's iTunes Store as a song container.

Is M4A Different from MP3?

Although both of them are audio containers, they differ in many aspects.

M4A uses MPEG-4 codec and usually has a larger size. It is the proprietary file format of Apple.


MP3 is a more popular audio format, which uses MPEG-3 codec and is smaller in size. It can be easily opened on Windows, Mac, mobiles, and other devices.

Why Turn M4A to MP3?

If you're not only going to play and store M4A files on Apple devices, it is better to change them into MP3 to reduce file size and make them more compatible.

Change M4A Online with WorkinTool Features in Use

Bulk Conversion
Bulk Conversion
WorkinTool M4A to MP3 Converter supports batch conversion. It is free to transfer four MPEG-4 audio files together in seconds.
Free for Sure
Free for Sure
This online website can convert M4A files to MP3 completely free. Although only four files can be added at a time, you can use this tool unlimited times.
High-quality Output
High-quality Output
Both M4A and MP3 are lossy compression types. But WorkinTool supports converting M4A to MP3 without sacrificing the audio quality.
Data Security
Data Security
This online MP3 converter will not upload your audio data to third-party individuals or institutes. Your files will be deleted within 24 hours.
More Formats
More Formats
In addition to M4A to MP3 converter, you can find other useful tools that can process multiple video and audio formats, such as MP3 to M4A , MP4 to MP3, WAV to MP3, MP3 to WAV , and more.

Desktop Software VS Online Tool

Desktop Software
Free Download For Win 11/10/8/7
Data privacy ensured
Faster converting speed and better outcome quality
No ads involved
No file size limitation
Integrated conversion features like MP4 to MP3, WAV to MP3, MP3 to M4A, etc.
Only for Windows
Online Tool
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No need to install software, access everywhere with the Internet
Stable converting speed and high exporting quality
No backup for uploaded files; security is guaranteed
No ads involved
Longer uploading and downloading time
The file size is up to 20M

M4A to MP3 Converter

Start Your Free Plan!
WorkinTool audio converter is not limited to M4A to MP3. Using our Windows software, which integrates a video converter and an MP3 converter, you can easily convert MP3 to M4A, MP4 to MP3, WAV to MP3, M4A to AAC, and more. More free features like audio compressing and video editing are waiting for you. Try it right now!
Free Download For Win 11/10/8/7
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