Opus Audio — Low-latency lossy codec optimized for speech and music.
Quick facts
What is .opus
A .opus file is a Opus Audio — Low-latency lossy codec optimized for speech and music.
In the mime-db registry it maps to audio/ogg, and it is marked as non-compressible. When serving .opus over HTTP, set the Content-Type header as shown in Developer info below.
Related entities: it maps to audio/ogg — and is delivered over HTTP via the Content-Type header.
How to open .opus files
Developer info
When served over HTTP, responses should set the following header:
Content-Type: audio/ogg
Common software that reads/writes .opus:
Relation chain
Related extensions
Related MIME types
Common uses
How to edit .opus files
How to create .opus files
Frequently asked questions
Common options include VLC, Chrome, Audacity. You can also open many of these files with built-in viewers or a browser.
Create a new file in any text editor or the app that owns the format and save it with the .opus extension.
audio/ogg is the media type identifier used for .opus files during network transfer (for example in the HTTP Content-Type header).
Sources & standards
Updated 2026-08-18
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