Convert WMA to OPUS
Free, fast and secure — convert WMA to OPUS right in your browser.
WMA
OPUS
Upgrade your WMA to a modern OPUS
Converting WMA to OPUS adopts a modern, highly efficient format that keeps quality high while cutting file size — a smart default for today’s web and apps.
How to convert WMA to OPUS
- 1 Drop your WMA file into the converter above.
- 2 It is converted to OPUS automatically — no settings to fiddle with.
- 3 Download your new OPUS file instantly.
WMA vs OPUS
| Feature | WMA | OPUS |
|---|---|---|
| Compression | Lossy | Lossy |
| MIME type | audio/x-ms-wma | audio/opus |
| Best for | Legacy Windows audio — converted to MP3 for universal playback. | Voice chat, podcasts and streaming where bandwidth efficiency is critical. |
About the formats
WMA
Windows Media Audio
WMA is Microsoft’s audio format, once common on Windows for music and playback. It compresses well but has limited support outside the Windows ecosystem.
Strengths
- Plays natively on Windows
- Decent compression
- Small files
Limitations
- Weak support on Mac, mobile and web
- Lossy compression
- Often needs converting
Best for: Legacy Windows audio — converted to MP3 for universal playback.
OPUS
Opus audio
Opus is a state-of-the-art codec that delivers superb quality at very low bitrates. It powers most modern voice and streaming apps but is less common for stored files.
Strengths
- Best-in-class quality at low bitrates
- Excellent for voice and streaming
- Open and royalty-free
Limitations
- Limited support in older players
- Uncommon for downloads
- Few hardware decoders
Best for: Voice chat, podcasts and streaming where bandwidth efficiency is critical.
Frequently asked questions
Upload your WMA file above and it is converted to OPUS automatically. When it is ready, download your new Opus audio — the whole thing takes just a few seconds in your browser.
Converting WMA to OPUS adopts a modern, highly efficient format that keeps quality high while cutting file size — a smart default for today’s web and apps.
Converting between compressed formats can introduce minor changes, but our converter keeps your OPUS looking as close to the original as possible.
Yes. The converter is free to use, with no watermark and no sign-up required.
Your files are processed securely and are never shared with anyone.