Convert WAV files into the modern Opus format, which sounds remarkably good even at low bitrates. Conversion runs right in your browser, so your files are not uploaded by default.
In “Local” mode your file never leaves your device. No uploads, no server – ideal for sensitive recordings.
Pick “Local” for full privacy or “Server” for very large files and every format.
No sign-up, no queue, no watermark. Choose a file, convert, download.
Opus is one of the most efficient audio formats around and delivers better quality than MP3 or AAC at low bitrates. It's excellent for speech and streaming.
Yes, Opus is lossy, so some of the WAV's detail is removed. Thanks to its high efficiency, the audible loss stays very small.
Modern browsers, many messengers and current players support Opus. On older devices, however, compatibility can be limited.
No, conversion happens locally in your browser by default. An optional server mode is available for very large files.