Turn OPUS audio files into WMA. It is converted in your browser, so the file never leaves your device.
Drop OPUS files here
or choose from your computer paste with Ctrl V
from Photos or Files
Ready · other file types work too0 bytes uploaded, ever
Drop OPUS files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.
Press Convert. Open Options first if you want to change the defaults. The work happens in this tab.
Save the WMA, or download everything as one ZIP if you converted several files.
The OPUS to WMA converter is part of this page and runs inside your browser. Your audio files are never sent to ToAny or to anyone else.
Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.
No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.
Opus files do not open in many music apps, editors or hardware players. WMA plays in old Windows software and some older portable players. OPUS is at home in voice and music at low bitrates; WMA is the usual choice for legacy Windows music libraries. Both formats are lossy, so the content is compressed a second time; start from the best copy you have.
The defaults suit most files. Under Options you can choose the bitrate and trim the start and end.
This pair uses the compatibility engine, ffmpeg built for the browser, because WMA cannot be written by the browser's built-in codecs. It is a one-off download of about 10 MB that the browser keeps, it is slower than the built-in codecs, and it takes files up to 1 GB. WMA is written at 128 kbps unless you choose another bitrate.
Opus is a modern open codec that sounds good at very low bitrates. WhatsApp voice notes, Discord and video calls use it. Standalone .opus files are less widely supported than the codec itself.
Opens in Current browsers, Android, VLC; many music apps and hardware players do not
OPUS converterWMA is Microsoft's answer to MP3 from 1999. Music ripped with Windows Media Player is often WMA, and little outside Windows plays it.
Opens in Windows; needs extra software on Mac, iPhone and Android
WMA converter| OPUSOpus audio | WMAWindows Media audio | |
|---|---|---|
| Stands for | Opus | Windows Media Audio |
| Type | Audio | Audio |
| Compression | Lossy | Lossy |
| Introduced | 2012, by the Internet Engineering Task Force (with Xiph.Org, Mozilla and Skype) | 1999, by Microsoft |
| Opens in | Current browsers, Android, VLC; many music apps and hardware players do not | Windows; needs extra software on Mac, iPhone and Android |
| Best for | Voice and music at low bitrates | Legacy Windows music libraries |
| File extension | .opus | .wma |
No. The OPUS to WMA conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.
WMA is a lossy format, so a small amount of detail is traded for a smaller file. At the default setting the difference is hard to notice. You can choose the bitrate under Options.
Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.
The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the OPUS file, press Convert and save the WMA. There is nothing to install.
Yes. OPUS to WMA runs on the compatibility engine, which takes files up to 1 GB, and a long clip takes a while because it is slower than the browser's built-in codecs. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.