Convert any audio file to Opus format online for free. Fast, secure, and easy-to-use audio to Opus converter with no software installation required.
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Max file size: 50 MBMax duration: 30 min
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Drag and drop your WAV file, or click to browse for it.
Choose Opus as the output and click Convert. The conversion runs on our servers, so your device does none of the work.
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Your file is used only to make your conversion. It is never published or shared, and the download link expires after one hour.
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How the two formats differ on the things that change your result.
| Specification | WAV (source) | Opus (result) |
|---|---|---|
| Container | RIFF WAVE | Ogg |
| Developed by | Microsoft / IBM | Xiph.Org / IETF |
| Introduced | 1991 | 2012 |
| Audio codecs | PCM | Opus |
| Compression | Uncompressed | Lossy |
| Max sample rate | 192 kHz | 48 kHz |
| Max channels | 8 | 255 |
| Gapless playback | Yes | Yes |
| Metadata / tags | RIFF INFO (limited) | Vorbis comments |
| Approx. file size | 10–32 MB per minute | 0.48–1.44 MB per minute |
| Licensing | Royalty-free | Royalty-free |
| Plays natively on | Native: Web browsers, Windows, macOS, iOS, Android · Needs a player: Smart TVs | Native: Web browsers, Android · Needs a player: Windows, macOS, iOS |
| Best for | studio editing, mastering, sample libraries | voice and calls, podcasts, web delivery |
Converting WAV to Opus trades detail for size, and the trade is permanent. Encode at the top of the 64 to 256 kbps range if the file will be edited again later. Size falls from about 21 MB per minute to around 1 MB per minute.
This direction reduces compatibility rather than improving it: unlike WAV, Opus has no native support on Windows, macOS, and iOS. It is the right choice for a specific workflow, not for sharing widely.
WAV can carry sample rates up to 192 kHz, but Opus tops out at 48 kHz. High-resolution sources are resampled down on the way through.
This conversion moves the file toward a different purpose: WAV suits studio editing, mastering, sample libraries, whereas Opus is chosen for voice and calls, podcasts, web delivery.
Tags do not transfer verbatim. WAV stores them as RIFF INFO (limited) while Opus uses Vorbis comments, so titles and artwork are remapped and unusual custom fields may not survive.
Converting WAV to Opus means moving audio out of the RIFF WAVE container, introduced in 1991, and into Ogg, which arrived in 2012. The two were designed with different priorities, and that is what determines whether this conversion costs you quality, storage, or compatibility.
Developed by Microsoft / IBM in 1991, WAV carries uncompressed audio (PCM). That sets the upper bound on what any conversion can preserve.
Opus was introduced by Xiph.Org / IETF in 2012. It holds lossy-compressed audio (Opus) and plays natively on web browsers and Android.
After converting your file, you can use Scriptivox transcription services to convert your audio to text. Perfect for meetings, interviews, podcasts, and more.
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