AU File Converter — Convert .AU to MP3, WAV, AAC & More
The AU file format is a simple audio file format introduced by Sun Microsystems. It is common on Unix-based systems and on the early Internet, typically using m…
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Source Format
Sun AU Audio
.auThe AU file format is a simple audio file format introduced by Sun Microsystems. It is common on Unix-based systems and on the early Internet, typical...
audio/basic
Learn more .au
Select a Target Format
Choose one of the 5 output formats on the left to configure your conversion options.
Popular AU Conversions
What is a .AU file?
The AU file format is a simple audio file format introduced by Sun Microsystems. It is common on Unix-based systems and on the early Internet, typically using mu-law encoding.
- File Extension
- .au
- MIME Type
- audio/basic
- Category
- Audio
- Output Formats
- 5 supported
Frequently Asked Questions
A .AU file is a Sun AU Audio format used in the audio category. You can view the full technical details on this page, or convert it to another format using the tool above.