Convert Opus to OGG
Free online audio converter. Turn Opus audio into OGG right in the browser. Files are never uploaded anywhere.
About Opus and OGG
Opus is the newest codec here and the most efficient — it outperforms MP3, Vorbis and AAC at low bitrates, which is why WhatsApp, Discord and WebRTC all use it. Support is universal in browsers, patchier in older hardware.
OGG Vorbis is a free, open lossy codec that beats MP3 at equivalent bitrates. It is common in game audio and open-source software, and every modern browser plays it.
Converting Opus to OGG is lossy. 192 kbps is transparent for most listeners on most material; pick 320 kbps for the ceiling, or drop lower when small files matter more than fidelity.
How the conversion works
This tool runs FFmpeg — the same engine behind most media software — compiled to WebAssembly, entirely in the browser. The file is read locally, converted locally and saved straight from memory; nothing is ever uploaded, which also means no queues and no server-side file size limits.
The converter itself is a one-time ~31 MB download on the first conversion, cached by the browser afterwards. Once it is loaded, everything works offline.
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Free and open source from Earthling Digital, an independent creative agency. Built with Earthling UI.