audio conversion
AU to WMA Converter
Convert AU files to WMA online for free. Upload a AU file, choose WMA, and download the converted file with no account required.
Why convert AU to WMA?
Audio formats differ in compression, editing support, playback compatibility, and file size. AU files are commonly used for general file conversion workflows. Converting to WMA helps when your next tool, device, website, or sharing workflow needs legacy Windows libraries and older media collections.
Best uses for WMA
WMA is useful for legacy Windows libraries and older media collections. WMA is a Microsoft audio format used by older Windows workflows. Use this output when compatibility, editing needs, upload requirements, or file size make WMA the better fit.
Before you convert
Check duration, volume, playback support, and whether the output uses lossy or lossless compression before deleting the original. Keep the original AU file until the converted WMA file has been reviewed successfully.
Common upload errors this can fix
Use this converter when an upload form says the file type is not supported, when an app cannot preview the AU file, or when a recipient needs a more familiar WMA file. Always match the output to the format requested by the destination, especially for job portals, school submissions, marketplace listings, CMS uploads, and social platforms.
AU vs WMA
AU is commonly used for general file conversion workflows. WMA is commonly used for legacy Windows libraries and older media collections. The best choice depends on whether you need compatibility, editing support, smaller file size, stable layout, transparency, playback support, or a format that a specific upload form accepts.
Conversion checklist
After converting, open the WMA file before deleting the original AU. Check file size, readability, playback or preview behavior, and whether the converted file works in the exact app, website, or device where you plan to use it.
AU to WMA FAQ
How do I convert AU to WMA?
Upload your AU file, keep AU as the input format, choose WMA as the output, then start the conversion and download the converted file.
Is this AU to WMA converter free?
Yes. You can convert files online without creating an account or installing desktop software.
When should I use WMA?
WMA is useful for legacy Windows libraries and older media collections. WMA is a Microsoft audio format used by older Windows workflows.
Will converting AU to WMA change quality?
Quality depends on the source file and output format. AU is supported by this converter path. WMA is a Microsoft audio format used by older Windows workflows.
Why would a website reject my AU file?
Many upload forms accept only a short list of formats. If the form asks for WMA, convert the file first, then open the result and confirm the upload accepts it.
Is WMA good for uploads and playback?
WMA can be useful for specific audio workflows. If maximum compatibility matters, MP3 is usually the safer output.
Should I keep the original audio file?
Yes. Keep the original recording if quality matters, especially for interviews, voice memos, music, legal notes, school work, or podcast production.