Opus Converter
Convert files to and from Opus — free, online, no signup.
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Opus is a lossy audio codec standardized by the IETF in 2012. It outperforms MP3, AAC, and Vorbis at almost every bitrate and adapts from 6 kbps speech to 510 kbps stereo music, which is why WhatsApp voice notes, Discord, WebRTC calls, and YouTube all run on Opus.
| Full name | Opus Interactive Audio Codec |
| Developer | Xiph.Org / IETF |
| Released | 2012 |
| Type | Lossy compression |
| Typical use | voice messages, VoIP, low-bitrate streaming |
| MIME | audio/opus |
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Frequently asked questions
How do I open a Opus file?
Opus is a lossy audio codec standardized by the IETF in 2012. It outperforms MP3, AAC, and Vorbis at almost every bitrate and adapts from 6 kbps speech to 510 kbps stereo music, which is why WhatsApp voice notes, Discord, WebRTC calls, and YouTube all run on Opus. If a device refuses to open it, the fastest fix is converting it to a more universal format with the converter above.
Is converting Opus files free?
Yes — 10 conversions a day with files up to 200 MB, free, with no signup and no watermarks.