AU to MP3 Converter

Easily convert your AU files to MP3 format in the Audio category with ConvertOnline's efficient tool.

File Limit Exceeded!

Oops! You've used up your 500MB daily limit for free conversions.
Want more? Upgrade now for unlimited access or come back tomorrow!

Download All
Convert all to
Drag and drop files here. Sign Up for more features.
+

What is AU ?

The AU file format is an audio file format developed by Sun Microsystems, primarily used for storing sound data. It is often utilized in Unix systems and can support various audio coding schemes.

Read more...

What is MP3 ?

MP3 is a digital audio compression format that significantly reduces the file size of audio recordings while preserving sound quality. It is widely used for music distribution and streaming due to its efficient compression algorithms and compatibility with various devices.

Read more...

How to Convert AU to MP3 in Just a Few Steps

  1. Upload your AU file
    Click the upload button or drag & drop your file into the converter area. We support all major formats.
  2. Choose MP3 as the output format
    The tool will automatically convert your file to MP3.
  3. Start the conversion
    Click the "Convert" button and let our tool handle everything. The conversion only takes a few seconds.
  4. Download your converted file
    Once complete, download your new MP3 file instantly.

Start converting AU to MP3 now — it’s fast, safe, and completely online!