Decodes an Ogg file — Vorbis or Opus — into uncompressed WAV. Common when audio from a game or an open-source project needs to go into an editor.
Both codecs are handled
The .ogg extension covers Vorbis and Opus, and the file itself says which. Both decode here, and the WAV is the same either way: 16-bit PCM at the source sample rate.
No further loss, but no recovery either
The Ogg was lossy. The WAV is an uncompressed copy of that lossy audio — larger, not better. Its value is that subsequent editing does not add another generation.
How large the WAV will be
Uncompressed audio costs about 10 MB per minute at CD settings — 44,100 samples a second, 16 bits each, two channels. A three-minute track that arrived as a 3 MB Ogg leaves as roughly 30 MB, and an hour-long recording lands near 600 MB. That is not a fault of the conversion; it is what WAV is. If the destination is a transcription service or an editor that only reads WAV, dropping to mono and 16,000 samples a second first cuts the same hour to about 115 MB with no loss that matters for speech.
WAV runs out of room at 4 GB
The size field in a WAV header is 32 bits, so the format cannot describe a file larger than about 4 GB no matter what writes it. At CD settings that is roughly six and a half hours, which sounds like plenty until you are converting a day-long field recording or a conference stream. Formats invented to get past it exist — RF64 and W64 — but support for them is patchy enough that a file which is technically valid is often less useful than one that is merely shorter. Splitting the source first is the reliable answer.
Other names for this
Also searched as “vorbis to wav”, “convert ogg to wav”.
Questions
- Does it handle Opus?
- Yes, as well as Vorbis. The container identifies which and both are decoded.
- Will the WAV sound better?
- No. It is an uncompressed copy of the same audio.
- Is my file uploaded?
- No. The demuxing, decoding and encoding all happen in this tab using the browser’s own media stack plus a WebAssembly encoder. A recording can be an interview, a lecture, a private call — none of it is transmitted. Turn your Wi-Fi off after the page loads and it still works.
- How large a file can I convert?
- There is no imposed limit, only your device’s memory — around 2 GB in a desktop browser and 400 MB on a phone, since the file is held in memory while it converts. A two-hour video converts in well under a minute on a laptop.