Convert Opus to OGG
Convert Opus audio files to OGG Vorbis directly in your browser. Both are Xiph.Org codecs but most game engines (older Unity, Godot 3.x, RPG Maker) ship Vorbis decoders only. Vorbis is also what Wikipedia/Wikimedia Commons accepts for music. No upload needed.
Drag 'n' drop files here, or
click to select files
.opus
Drop your files and click Convert to get OGG
//when_to_use
When to Convert Opus to OGG
- Converting Opus voice acting tracks to OGG Vorbis for inclusion in Godot 3.x or older Unity game projects
- Migrating Discord-recorded Opus dialogue to Vorbis for RPG Maker MV / MZ resource packs
- Preparing Opus field recordings as OGG Vorbis for upload to Wikimedia Commons (older policy preferred Vorbis)
- Encoding Opus podcast clips as Vorbis for self-hosted Funkwhale instances configured for Vorbis-only
- Converting WhatsApp Opus voice notes to Vorbis for legacy Linux audio apps (Banshee, classic XMMS)
//comparison
OPUS vs OGG
| Property | OPUS | OGG |
|---|---|---|
| Codec inside .ogg | Opus (CELT+SILK) | Vorbis (MDCT) |
| Container | OGG | OGG |
| Typical size (3 min) | 1-3 MB | 3-4 MB |
| Older Unity / Godot 3 | Not supported | Native |
| Legacy Linux apps | Often missing | Universal |
| Best for | VoIP, modern web | Older games, legacy Linux |
//how_it_works
How It Works
Drop your Opus files
Drag and drop or pick .opus files. First conversion loads FFmpeg WASM (~30MB).
FFmpeg decodes Opus
FFmpeg WASM extracts Opus packets from the OGG container and decodes to 16-bit PCM at 48 kHz.
Vorbis encode (q5)
PCM is re-encoded with libvorbis at quality 5 (~160 kbps VBR), then muxed into a Vorbis-bearing OGG container.
Download OGG (Vorbis) files
Resulting .ogg files import into older Unity, Godot 3, RPG Maker, classic Linux media apps, and Wikimedia Commons.
// under the hood
Both Opus and Vorbis are Xiph.Org lossy MDCT-based codecs, but with different bitstream formats — Opus uses CELT+SILK at 48 kHz; Vorbis is older, MDCT-only, and supports varied sample rates. Our converter uses FFmpeg WASM to decode Opus to 16-bit PCM at 48 kHz, then re-encode with libvorbis at quality 5 (~160 kbps VBR) and mux into a Vorbis-bearing OGG container.
//faq
Frequently Asked Questions
- Aren't Opus and OGG the same thing?
- No — that's a common confusion. OGG is the container; Opus and Vorbis are two different codecs that can both live inside OGG. Older tools that say 'OGG support' usually mean OGG Vorbis specifically and don't recognize Opus packets. This converter transcodes Opus → Vorbis.
- Will quality drop going Opus to Vorbis?
- Yes — both are lossy and re-encoding compounds artifacts. Opus is the technically newer/better codec, so expect slight degradation. We use Vorbis quality 5 (~160 kbps VBR) which is well above audible-loss threshold for the typical 64-128 kbps Opus source.
- Why prefer Vorbis over Opus for distribution?
- Compatibility with older engines: Unity 2017-2019, Godot 3.x, RPG Maker MV/MZ, GameMaker Studio 1.x bundle Vorbis decoders only. Wikipedia/Wikimedia Commons accepts Vorbis for music but historically rejected Opus until recently. Some legacy Linux apps (Banshee, classic XMMS) handle Vorbis only.
- What Vorbis quality do you use?
- FFmpeg's libvorbis at quality 5 (~160 kbps VBR) — the historical Spotify Free encoding profile and Vorbis's transparency sweet spot. Sample rate is preserved from the 48 kHz Opus source.
- Are my files uploaded?
- No. FFmpeg WebAssembly runs entirely in your browser — Opus is decoded and Vorbis is encoded locally.
//related_converters
Related Converters
Similar conversions you might need.
Convert Opus to MP3
Convert Opus audio to MP3 for legacy device compatibility — car stereos, old MP3 players, and DJ software.
→Convert Opus to WAV
Convert Opus voice notes and audio to uncompressed WAV for transcription, editing, and forensic workflows.
→Convert Opus to AAC
Convert Opus audio to AAC for Apple ecosystem playback — iPhone, iPad, Apple TV, CarPlay.
→Convert Opus to FLAC
Convert Opus audio to FLAC to stop further generational loss in re-edits and archival.
→Convert MP3 to OGG
Convert MP3 audio files to open-source OGG Vorbis format.
→Convert WAV to OGG
Convert uncompressed WAV audio to compact open-source OGG Vorbis format.
→