Opus to WAV Converter
Convert Opus to WAV free — no upload, no signup
To convert Opus to WAV, drop your Opus audio files into the box below and click Convert. Fylo converts with ffmpeg running inside your browser, so nothing is uploaded and there's no signup or watermark. Decode Opus voice recordings into WAV for transcription or editing.
Drop audio files here
or tap to browse · paste with Ctrl+V · add many at once
Your files never leave your device
WAV is lossless — no bitrate to choose. Sample rate and channels are under Advanced.
Advanced
How to convert Opus to WAV
Add your Opus files
Drag and drop Opus files into the box or tap to choose them. The converter engine (about 31 MB) downloads once, the first time you convert.
Check the settings
WAV is lossless, so there's no bitrate to pick. Change sample rate or switch to mono under Advanced if a device needs it.
Convert and download
Click Convert, then download each WAV file or all of them as one ZIP.
Why convert Opus to WAV?
Transcription services, audio editors and evidence workflows often require WAV.
What happens when you convert Opus to WAV?
The Opus audio is decoded to 16-bit PCM WAV at 48 kHz.
How does Fylo convert Opus to WAV?
Fylo decodes the Opus audio in the Opus with ffmpeg compiled to WebAssembly and encodes it with 16-bit little-endian PCM with no compression. Nothing is added back: the WAV is an exact but larger copy of the decoded Opus (≈ 32 MB for a 3-minute song versus ≈ 2.9 MB at 128 kbps). The original sample rate and channel layout are kept unless you change them under Advanced.
What's the difference between Opus and WAV?
Opus is an open, royalty-free codec standardised by the IETF as RFC 6716 in 2012. It blends speech technology from Skype's SILK with music coding from Xiph's CELT, so it handles both voice and music well. Files are usually stored in the Ogg container with the .opus extension.
WAV was introduced by Microsoft and IBM in 1991 and, like AVI, uses the RIFF container. Most WAVs hold uncompressed PCM audio: CD quality (44.1 kHz, 16-bit, stereo) runs at 1,411 kbps, or about 10.6 MB per minute.
Learn more: Opus format guide · WAV format guide
| Property | Opus | WAV |
|---|---|---|
| Compression | Lossy | None (PCM) |
| Typical bitrate | 24–160 kbps | 1,411 kbps (CD quality) |
| 3-minute song | ≈ 2.9 MB at 128 kbps | ≈ 32 MB |
| Tags and cover art | Yes (Vorbis comments) | Limited |
| Compatibility | Browsers, Android, WhatsApp, Discord; partial on Apple | Universal on computers; editors and DAWs |
| Best for | Voice notes, podcasts, streaming at low bitrates | Recording, editing, mastering |
| Introduced | 2012 | 1991 |
Frequently asked questions
Does converting Opus to WAV improve quality?
No. Opus is lossy, so detail removed during its compression can't be restored. The WAV is a lossless copy of what the Opus sounds like — bigger, but not better.
Can I make it mono 16 kHz for transcription?
Yes — set channels and sample rate under Advanced.
Is my Opus file uploaded to a server?
No. Fylo runs ffmpeg, the same engine used by professional video tools, compiled to WebAssembly inside your browser. Your Opus file is read directly from your device and never sent anywhere.
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