AU
→
WMA

Convert AU to WMA Online

Convert AU to WMA online. Start with free daily conversions, no install, no watermarks, and visible job status.

AU to WMA Converter

Upload your AU file to convert it to WMA format

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How to Convert AU to WMA

Follow these simple steps

1

Step 1: Upload Your File

Upload your AU file by dragging and dropping or clicking to browse

2

Step 2: Select Output Format

WMA is automatically selected as the output format

3

Step 3: Start Conversion

Click the Convert button to start the conversion

4

Step 4: Download Result

Download your converted WMA file when ready

Convert AU to WMA - Complete Guide

Converting AU to WMA stays in the audio file family but changes the traits that decide size, quality, transparency, editability, or device support. AU is a audio format. Sun audio. WMA is a audio format. Windows Media Audio. Below is what actually changes in a AU→WMA conversion, what is preserved, and when WMA is the better choice than keeping AU.

What changes when you convert AU to WMA

  • The audio is re-encoded into the WMA format. Because re-encoding is not free, start from the highest-quality source you have and keep quality settings high.
  • Expect a smaller output file: WMA is typically more space-efficient than AU for the same content.

About the AU format

AU is a audio format. Sun audio.

  • Compression: mixed
  • Opens with: VLC, Audacity, FFmpeg

Where AU is strong: simple legacy format from Sun/NeXT systems; stores uncompressed PCM or companded mu-law/A-law audio; easy to read and parse.

Typical AU uses: legacy Unix and Java system sounds, older audio archives.

About the WMA format

WMA (Windows Media Audio) is Microsoft's audio format. While native to Windows, it has limited compatibility elsewhere. Our converter transforms WMA to universal formats.

  • Full name: Windows Media Audio
  • Developer: Microsoft
  • Compression: Lossy/Lossless
  • Opens with: Windows Media Player, VLC

Where WMA is strong: compact audio from the Windows ecosystem.

Typical WMA uses: legacy Windows audio.

What WMA keeps

  • WMA adds: compact audio from the Windows ecosystem.

Things to watch out for

  • One WMA limitation to keep in mind: poor support outside Windows.

When to convert AU to WMA

  • Convert AU to WMA for legacy Windows audio.

AU vs WMA — format comparison

A quick side-by-side of the structural differences between AU and WMA, so you can confirm this is the right conversion for your file:

AttributeAUWMA
TypeAudio fileAudio file
CompressionFlexible (lossy or lossless)Lossy
Web-friendlyNoNo
Typical file sizeMediumSmall
Best forlegacy Unix and Java system soundslegacy Windows audio

Privacy & Security

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Need the opposite conversion?

Convert WMA to AU

Other AU Conversions

More formats you can convert AU to

Convert AU to MP3Convert AU to WAVConvert AU to AACConvert AU to OGGConvert AU to FLACConvert AU to M4AConvert AU to AIFFConvert AU to OPUSConvert AU to AC3Convert AU to AMRConvert AU to CAFConvert AU to MKAConvert AU to WVConvert AU to SPXConvert AU to OGAConvert AU to DTSConvert AU to MP2
View all AU conversions →

Convert to WMA

Other formats you can convert to WMA

Convert MP3 to WMAConvert WAV to WMAConvert AAC to WMAConvert OGG to WMAConvert FLAC to WMAConvert M4A to WMAConvert AIFF to WMAConvert OPUS to WMAConvert AC3 to WMAConvert AMR to WMAConvert CAF to WMAConvert MKA to WMAConvert WV to WMAConvert SPX to WMAConvert OGA to WMAConvert DTS to WMAConvert MP2 to WMA
View all WMA conversions →

AU to WMA FAQ

Converting AU to WMA preserves the content faithfully; output also depends on the source file and any settings you choose.
Upload your AU file, confirm WMA as the output format, and click Convert. Job status is shown while the file is processed, then you can download the WMA result.
Yes. You can start with free daily conversions, with no signup required for your first jobs and no watermarks on the output. Accounts and paid plans are available for higher-volume work.
No. The AU to WMA conversion runs in your browser on any device — Windows, Mac, Linux, iOS, or Android — with uploads and downloads over HTTPS.
WMA (Windows Media Audio) is an audio file format. WMA files can be played with various audio players and media applications.
Upload your WMA audio file to the converter, select your desired output format, and click Convert. The job status appears while the audio is processed.
You can start with free daily conversions. Accounts and paid plans are available for higher-volume work, and downloaded files are not watermarked.
You can convert WMA to proof-backed audio outputs such as MP3, WAV, AAC, OGG, FLAC, M4A, WMA, AIFF, OPUS, AC3, AMR, AU, CAF, MKA, WV, SPX, OGA, DTS, and MP2 when the source format is public-supported.
Yes! Our WMA converter works on any device including smartphones and tablets.
Choose the bitrate or output setting that fits your file-size and playback needs. Lossy formats can reduce detail compared with the source.

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