Filenary

OPUS to WAV Converter

Convert Opus audio files to WAV audio right in your browser — free, private and with no size limit.

Drop your file here

or click to browse

Choose File

On first use, a ~30 MB conversion engine is downloaded to your browser (one time only).

This file is processed in your browser and never uploaded to a server.

How to convert OPUS to WAV

  1. 1Drop your OPUS file into the box above, or click to choose it from your device.
  2. 2Click Convert. The conversion runs locally in your browser — nothing is uploaded.
  3. 3Download your new WAV file as soon as it's ready.

Why convert OPUS to WAV?

Opus voice notes don't open in many music players, editors and older phones. WAV keeps full, uncompressed audio quality — ideal for editing and production.

The size math: OPUS vs WAV

At typical quality a minute of content weighs about 0.9 MB as OPUS and 10.1 MB as WAV — after conversion your WAV file comes out about 11.2× larger.

What is OPUS?

Opus is a modern open audio codec used for voice messages and calls (WhatsApp, Telegram, Discord).

  • MIME type: audio/opus
  • Standardized: 2012 (RFC 6716) by Xiph.Org
  • Consistently wins quality tests below 128 kbps
  • Powers Discord, WhatsApp voice notes and WebRTC calls

What is WAV?

WAV is an uncompressed audio format that stores the full sound quality, used in recording and editing.

  • MIME type: audio/wav
  • Developed by: IBM and Microsoft, 1991
  • Uncompressed PCM — CD quality means about 10 MB per minute
  • The recording and editing standard; archive masters stay in WAV

Frequently asked questions

Is this OPUS to WAV converter free?
Yes, it's completely free with no sign-up, no watermark and no daily limits.
Are my OPUS files uploaded to a server?
No. The conversion happens entirely inside your browser, so your files never leave your device.
Is there a file size limit?
Filenary sets no limit — even files over 1 GB work. The only practical limit is your device's memory.
Will converting OPUS to WAV reduce the quality?
WAV is a lossless format, so no extra detail is thrown away during the conversion — the result looks exactly like the source.
Can I convert several OPUS files at once?
This converter handles one file at a time. When it's done, click Start over to convert the next OPUS file.
Does it work on iPhone, Android, Mac and Windows?
Yes. It runs in any modern browser — Chrome, Safari, Edge or Firefox — on phones, tablets and computers, with nothing to install.

More OPUS conversions

Convert other files to WAV

All file conversions

Add this tool to your website

Copy the code below and paste it into any page. It's free, needs no sign-up, and files are processed in your visitors' own browsers.