Is it free to convert between WMA and OPUS?

Yes, Convert999 is 100% free. All conversions happen locally in your browser with no file size limits, no registration, and no watermarks.

.wma

.opus

WMA vs OPUS

Compare Windows Media Audio and Opus Audio formats — understand the key differences and when to use each

Format Overview

WMA

Windows Media Audio

Windows Media Audio (.wma) is a audio file format.

.wmaaudio

OPUS

Opus Audio

Opus Audio (.opus) is a audio file format.

.opusaudio

WMA vs OPUS: Feature Comparison

Feature	WMA	OPUS
Full Name	Windows Media Audio	Opus Audio
File Extension	.wma	.opus
Category	audio	audio
Free to Convert	✓ Yes	✓ Yes
Browser Support	✓ All Browsers	✓ All Browsers
Convert to Each Other	✓ Yes	✓ Yes

When to Use WMA vs OPUS

Use WMA when you need:

•Files in Windows Media Audio format for maximum compatibility
•Industry-standard audio format support
•Wide software and platform compatibility

Use OPUS when you need:

•Files in Opus Audio format for specific workflows
•Optimized audio format features
•Modern format advantages and smaller file sizes

Convert Between Them

WMA OPUS OPUS WMA

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Frequently Asked Questions

What is the difference between WMA and OPUS?

WMA (Windows Media Audio) and OPUS (Opus Audio) are both audio file formats. WMA files use the .wma extension while OPUS uses .opus. They differ in compression, quality, compatibility, and intended use cases.

Can I convert WMA to OPUS for free?

Yes! Convert999 lets you convert WMA to OPUS completely free, directly in your browser. No file upload to any server, no registration needed — your files stay private on your device.

Which is better, WMA or OPUS?

It depends on your use case. WMA (Windows Media Audio) may be better for certain workflows, while OPUS (Opus Audio) excels in others. Consider factors like file size, quality, software compatibility, and your specific needs.

Is it safe to convert files on Convert999?

Absolutely. Convert999 processes all files 100% locally in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.

WMA Converter

Convert from WMA

OPUS Converter

Convert from OPUS

File Tools

Compress, resize, merge

Convert to WMA

All sources → WMA

Convert to OPUS

All sources → OPUS

Format Statistics

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Feature

WMA