MP3 to M4A Converter

Batch convert mp3 files to m4a online. Change mp3 to m4a on Windows, Mac, iPhone and Android in 2 clicks.

Select files for conversion or drag and drop them to the upload area.
Your files are securely protected and available only to you.
All files are automatically deleted from our servers after 1 hour.

How to convert MP3 files to M4A online?

Step-by-step instructions for converting mp3 files to m4a

Upload MP3-file

Click "Choose File" button to select a mp3 file on your computer. MP3 file size can be up to 100 Mb.

Convert MP3 to M4A

Click "Convert" button to start conversion.

Download your M4A

When the conversion process is complete, you can download the M4A file.


  • ❓ How can I convert MP3 to M4A?
    First you need to add file for conversion: drag and drop your MP3 file or click the "Choose File" button. Then click the "Convert" button. When MP3 to M4A conversion is completed, you can download your M4A file.
  • ⏱️ How long does it take to convert MP3 to M4A?
    Audio conversion is pretty fast. You can change MP3 to M4A in a few seconds.
  • 🛡️ Is it safe to convert MP3 to M4A on AnyConv?
    Of course! We delete uploaded files immediately, and converted ones after 1 hour. No one has access to your files. File conversion (including MP3 to M4A) is absolutely safe.
  • 💻 Can I convert MP3 to M4A on Mac OS or Linux?
    Yes, you can use AnyConv on any operating system that has a web browser. Our MP3 to M4A converter works online and does not require software installation.

Information about MP3 and M4A file formats

Name MP3 M4A
Full name MP3 - MPEG-1 or MPEG-2 Audio Layer III M4A - Audio-only MPEG-4
File extension .mp3 .m4a
MIME type audio/mpeg, audio/MPA, audio/mpa-robust video/mp4
Developed by Fraunhofer Institute International Organization for Standardization
Type of format Digital audio Media container
Description MPEG-1 or MPEG-2 Audio Layer III, more commonly referred to as MP3, is an audio coding format for digital audio that uses lossy data compression. It is a common audio format for consumer audio streaming or storage and a de facto standard of digital audio compression for the transfer and playback of music on most digital audio players. MPEG-4 Part 14 or MP4 is a digital multimedia container format most commonly used to store video and audio. However, it can also be used to store other data such as subtitles and still images. M4A stands for MPEG 4 Audio and is a filename extension used to represent audio files.
Technical details Lossy compression is designed to reduce significantly the amount of data required to represent the audio recording and still sound like a faithful reproduction of the original uncompressed audio. For example, an MP3 file created using the setting of 128 kbit/s will result in a file about 1/11 the size of the CD file created from the original audio source. Audio-only MPEG-4 files generally have a .m4a extension. This is especially true of non-protected content. M4A is often compressed using AAC encoding (lossy) but can also be in Apple Lossless format.
File conversion MP3 conversion M4A conversion
Associated programs VLC media player, MPlayer, Winamp, foobar2000. Windows Media Player, RealPlayer, MPlayer, Media Player Classic, VLC Media Player, K-Multimedia Player
MP3 to M4A conversion quality rating:
4.4 (485 votes)
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