OPUS file format
Opus Audio · Audio · .opus
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Opus is the most efficient modern audio codec, excellent for voice and music at low bitrates. Used by WhatsApp and Discord.
Technical details
| Full name | Opus Audio |
|---|---|
| File extension | .opus |
| MIME type | audio/ogg |
| Audio codecs we export | Opus |
| Best for | Voice notes, VoIP and very small audio files |
Last updated 2026-11-13
OPUS conversions
OPUS FAQ
What is a OPUS file?
OPUS (Opus Audio) is an audio format. Opus is the most efficient modern audio codec, excellent for voice and music at low bitrates. Used by WhatsApp and Discord.
How do I open a OPUS file?
Most modern players such as VLC open OPUS files. If yours doesn't, convert it to MP3 above, which plays on every device.
How do I convert a OPUS file?
Drop the file into the converter on this page, choose the output format and click “Convert & download”. It's free and runs in your browser without uploading.
What is OPUS best for?
Voice notes, VoIP and very small audio files.