Add your OPUS file
Drop one or more .opus files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
Re-encoding .opus audio as .wav changes how the sound is compressed and which players will accept it. Free, private, and validated — the file never leaves your browser.
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.Re-encoding .opus audio as .wav changes how the sound is compressed and which players will accept it. An .opus file contains audio compressed with the Opus codec, stored in an Ogg container. Opus represents the current state of the art in lossy audio, beating MP3, AAC, and Vorbis in listening tests at nearly every bitrate from whisper-thin speech settings up to transparent music encoding.
A .wav file is Microsoft's Waveform Audio format, which in practice almost always stores uncompressed PCM samples. Because every bit of the original signal is preserved and no decoding is required, .wav remains the default working format in recording studios and audio editors. For this route the practical draw is bit-perfect with zero generation loss and negligible CPU cost to read or write — balanced against enormous compared with FLAC, which halves the size losslessly, which is worth knowing before you commit a large batch.
The practical trigger for this conversion is usually a mismatch: with .opus, older car stereos, AV receivers, and MP3 players have never heard of it. Switching to .wav buys you bit-perfect with zero generation loss, which is why it is the better fit for capturing and mixing sessions in a DAW. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
| Aspect | Opus audio (.opus) | WAV audio (.wav) |
|---|---|---|
| Format type | Lossy — discards detail it judges invisible to shrink files | Lossless — every pixel or sample is preserved exactly |
| How it stores data | the hybrid SILK/CELT design switches coding modes automatically based on content | a RIFF chunk container whose fmt chunk usually declares linear PCM, though compressed codecs are technically permitted |
| Strongest at | compressing podcast and voice-chat audio to tiny files | capturing and mixing sessions in a DAW |
| Weak spot | older car stereos, AV receivers, and MP3 players have never heard of it | enormous compared with FLAC, which halves the size losslessly |
| Metadata | vorbis comments in the OpusTags header, including cover art via METADATA_BLOCK_PICTURE, plus an output-gain field used for loudness normalization | rIFF INFO chunks hold basic tags, while the Broadcast Wave bext chunk and iXML add description, originator, and timecode for production workflows; some tools also embed ID3 chunks |
Drop one or more .opus files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
Select .wav in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if WAV is selectable, the route is real and validated.
Press Convert. The transcode runs on an FFmpeg engine compiled to WebAssembly, so the audio never leaves your device.
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid WAV file. Outputs keep the original filename with the .wav extension.
No new loss is introduced — since opus is lossy-oriented and wav is lossless-oriented, everything the .opus file still contains is carried over exactly. What was already discarded by the original lossy encode cannot be recovered, though; converting to .wav does not "restore" quality.
Yes — the .opus file is processed inside your browser tab and never uploaded. The transcode runs on an FFmpeg engine compiled to WebAssembly, so the audio never leaves your device. Close the tab and the file is gone from memory.
Windows, macOS, Linux, iOS, Android, and all major browsers play .wav natively. Recordings that exceed 4 GB require the RF64 variant, which some consumer software fails to recognize.
Larger, sometimes much larger. A lossless .wav must store every pixel or sample the decoder produced, without the perceptual shortcuts .opus used. Use this route for editing headroom, not for saving space.
This converter strips container metadata deliberately (the FFmpeg command runs with metadata mapping disabled) so exported files do not leak recording details. In the source, vorbis comments in the OpusTags header, including cover art via METADATA_BLOCK_PICTURE, plus an output-gain field used for loudness normalization; none of it is transmitted anywhere because the file never leaves your browser.
Yes — the reverse route exists as a separate tool. Bear in mind that round-tripping .opus → .wav → .opus is not a perfect undo when any lossy step is involved; keep your original if fidelity matters.