Opus to WAV converter
This makes a WAV out of the Opus you already have. Opus gives you the best sound for the size of any common audio format, and handles speech and music equally well. Expect the WAV to be a good deal bigger, which is what keeping every detail costs. Your file never leaves your computer.
Need the other direction? Convert WAV to Opus
How to convert Opus to WAV
- 1 Drop your Opus .opus file onto the page, or click to browse for it.
- 2 Check the options. Nothing is thrown away on the way to WAV, so there is no quality dial to set.
- 3 Convert. The work happens on your own machine, so how long it takes depends on your computer and the file.
- 4 Download the WAV, or add more files and do the whole set in one go.
Why convert Opus to WAV
- You want a copy that will not get any worse each time you edit and save it, and WAV gives you that.
- Exactly as recorded, with nothing to unpack before it plays.
- Universally readable by audio software.
- Recording and multitrack editing masters.
- Opus: car stereos and standalone players mostly will not open it.
Opus compared with WAV
How the two formats differ on the things that decide whether a conversion is worth making.
| Property | Opus | WAV |
|---|---|---|
| File extension | .opus | .wav |
| Compression | Lossy | Uncompressed |
| Typical file size | Smaller | Largest |
| Browser support | All current browsers | Every browser |
| Introduced | 2012 | 1991 |
| Developed by | Xiph.Org and IETF | Microsoft and IBM |
Quality and what changes
WAV stores every pixel exactly, but it can only preserve what the Opus already contained. The compression artefacts baked into the source are preserved perfectly along with everything else, so the picture does not improve, it just stops degrading. Expect the file to grow substantially, often several times over, because Opus was discarding data that WAV now has to write out in full.
- One WAV limitation to keep in mind: track titles and artwork are barely supported.
Questions about Opus to WAV
Does converting Opus to WAV improve the quality?
No. WAV preserves what it is given perfectly, including the compression artefacts already present in the Opus. It stops further loss from happening, which is worth doing before editing, but it cannot recover detail that was discarded.
Why is my WAV bigger than the Opus?
Because Opus was discarding data and WAV is not. A lossless format has to write out every pixel it is handed, artefacts included, so growing several times over is normal and does not mean anything went wrong.
Is my Opus file uploaded anywhere?
No. The whole thing runs inside the browser tab you already have open. Your Opus is read straight from your own disk, converted on your machine and handed back as a WAV. Nothing is sent anywhere, nothing is stored and there is no account.
Is there a file size limit?
There is no server-side limit because no server sees the file. The real ceiling is your device memory, since the input and the output both have to fit in the tab. A few hundred megabytes is usually fine on a desktop machine and considerably less on a phone.
Can I convert several Opus files at once?
Yes. Add as many as you like and they are processed one after another, then offered as separate WAV downloads or as a single ZIP. Speed depends on your own processor rather than on a queue.
Does the converter work offline?
Yes, after the page has loaded once. The engine is cached by the browser, so you can disconnect, reload and keep converting. That falls out of doing the work locally rather than being a separate mode you switch on.