Audio Conversion
Convert AU to WMA Online — Free
Fast, free AU to WMA converter. No registration required.
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How to Convert
1
Upload your .au file by dragging it into the upload area or clicking to browse.
2
Choose your output settings. The default settings work great for most files.
3
Click Convert and download your .wma file when it's ready.
What is AU?
AU is an audio format created by Sun Microsystems. It's one of the oldest digital audio formats, commonly used on Unix and Java platforms.
Format Details
- Full Name
- Sun Microsystems Audio
- Extension
- .au
Key Features
- Unix standard
- Java audio
- Simple format
- Legacy support
What is WMA?
WMA is an audio format developed by Microsoft. It offers good compression and is commonly used in Windows environments.
Format Details
- Full Name
- Windows Media Audio
- Extension
- .wma
Key Features
- Windows native
- Good compression
- DRM support
- Streaming capable
AU vs WMA
| Feature | AU | WMA |
|---|---|---|
| Full Name | Sun Microsystems Audio | Windows Media Audio |
| Extension | .au | .wma |
| Best For | Unix standard | Windows native |
Frequently Asked Questions
Yes. You can convert up to 5 files per day completely free, with no watermark or registration required.
Most files convert in under 30 seconds. Larger files (over 500MB) may take 1-3 minutes.
No. Our converter uses optimized encoding settings by default to preserve the original quality.
Free users can convert files up to 100MB. Pro users can convert files up to 2GB.
Yes. Our converter works in any modern web browser on any device.