Opus to WAV Converter – Free Online

How to Convert Opus to WAV Online

Drop your Opus file

Drag and drop your .opus file onto the box above, or click Choose Files. The request is already filled in: “Convert this to WAV”.

Say how, if you want

The AI assistant uses sensible defaults. To choose the sample rate yourself, say so in the request, for example “Convert this to WAV at 48 kHz”.

Save your WAV file

The assistant opens with your file and converts it on your own device; the file itself is never uploaded. When the WAV file is ready, click Save. Prefer to set everything by hand, or batch-convert several files into a ZIP? The classic converter is one click away on this page.

Why Convert Opus to WAV?

Opus powers WhatsApp voice messages, Discord recordings and many WebRTC call recorders, yet most audio editors, dictation tools and transcription workflows expect WAV. Converting Opus to WAV turns a voice note into a standard PCM file you can clean up, caption or archive without special codecs.

Opus always decodes at 48 kHz, so a mono voice note becomes a WAV of about 5.8 MB per minute. For speech you can pick 16 kHz in the sample rate setting to cut that to under 2 MB per minute; it is the rate many speech-recognition engines work at internally.

Private by design: your Opus file is converted on your own device and never uploaded.
WAV already asked for: the AI assistant's request says WAV, so one drop does it. Want a particular sample rate? Just say so.
Batch friendly: the classic converter on this page takes several Opus files in one go and downloads them as a ZIP.
Free, no watermark: no sign-up, and nothing stamped on the output.

Opus vs WAV

Opus (Opus Interactive Audio Codec): Opus is the modern open codec built for voice and music at low bitrates. WhatsApp voice notes, Discord and WebRTC calls all use it, but many players still cannot open .opus files. It is best for voice notes, calls and low-bitrate streaming.

WAV (Waveform Audio File Format): WAV stores uncompressed PCM audio exactly as it was recorded. It is the standard for audio editing, mastering and archiving, at the cost of large files (about 10 MB per minute of CD-quality stereo). It is best for editing, mastering, DAWs and archiving.

In short: keep Opus when the priority is voice notes, calls and low-bitrate streaming, and switch to WAV when the file is headed for editing, mastering, DAWs and archiving. Need a different target? The full Audio Converter supports every format listed below.

Opus to WAV FAQ

Will the WAV be stereo?

It keeps the Opus file's channel count. Voice notes are normally mono and stay mono, which halves the size compared with stereo.

Can I convert a whole folder of WhatsApp voice notes?

Yes. Select all the .opus files at once; each becomes its own WAV, and Download All saves them together as a ZIP.

Is this Opus to WAV converter free?

Yes. Converting Opus to WAV on MediaConverter.io is free, with no watermark and no sign-up. The AI assistant runs on a free daily allowance of assistant credits; the classic converter on this page has no daily limit at all.

Are my Opus files uploaded to a server?

No. The conversion runs inside your browser using FFmpeg compiled to WebAssembly, so your .opus file is read and converted on your own device and never uploaded, which keeps private recordings private and means there is no waiting in an upload queue. The AI assistant only sees what you type and basic facts about the file: its name, format, duration and size.

Is there a file size limit for Opus to WAV?

There is no plan or account limit, but the converter loads the whole Opus file into your browser's memory, so about 2 GB per file is the practical ceiling; larger files may fail to open. Long or high-resolution files also take longer, especially on phones.

Can I choose the WAV settings myself?

Yes. Ask the AI assistant for a sample rate in your request. Audio track selection and every other setting are in the classic converter, one click away on this page.

Will converting Opus to WAV reduce quality?

WAV is uncompressed, so no further compression loss is added to the audio decoded from your Opus file. The converter writes 16-bit WAV, CD resolution, so a 24-bit source is reduced to 16-bit.

Which browsers support the Opus to WAV converter?

It is built and tested on current desktop Chrome and Edge. The conversion itself runs in WebAssembly, which every current desktop browser supports, so speed depends mostly on your computer's processor.