Opus to OGG Vorbis Converter — Free, Online, No Upload

Opus and OGG Vorbis both use the OGG container format, which causes genuine confusion: a file ending in .ogg might contain Vorbis audio or Opus audio, and not every player correctly identifies which is which. Older media players, some game engine audio loaders, and certain streaming tools that were built for Vorbis explicitly may reject or misdecode Opus-in-OGG files. When the target system specifically expects Vorbis — and not just the .ogg extension but the Vorbis codec inside — conversion is the solution.

Game engines are the most common scenario. Unity's audio importer, older versions of Godot, and some audio middleware tools were built around OGG Vorbis specifically. If you have Opus audio from a streaming capture, a Discord export, or a WebRTC recording that needs to be imported as a game audio asset, converting to OGG Vorbis ensures the game engine's importer recognises and correctly decodes the file. Some legacy Android media players and Linux audio libraries that predate widespread Opus adoption also fall into this category.

Both Opus and OGG Vorbis are lossy codecs, so transcoding between them introduces a small quality reduction. This converter uses Vorbis quality 5 (about 160 kbps), so keep the Opus file too if you can play it. If the original uncompressed audio is available, encoding it directly to OGG Vorbis will always produce better results than this route.

Typical sizes (3-minute song): OPUS 1–3 MB → OGG 2–5 MB.

OGG output uses Vorbis quality level 5, about 160 kbps.

Re-encoding one lossy format into another adds a second round of compression.