Convert an OPUS audio file to MP3 directly in your browser. The audio is processed on your device instead of being uploaded to a conversion server.
Drop your OPUS file here
or click to browse
Your audio stays on your device. Nothing is uploaded.
Working with video too? Convert MTS camera footage to MP4 or open ProRes files in the player. See all tools on the tools page.
Opus is common on the internet. Voice messages, podcasts and streaming audio often use it. MP3 still works with more music players, car stereos and editing programs. Converting your OPUS file to MP3 makes it usable in more places.
Opus and MP3 both compress audio. Converting from one to the other can slightly change the sound. Choosing a higher quality setting keeps the result closer to the original.
The whole process runs in your browser and the audio never leaves your device.
Opus is an audio format used widely on the internet. Voice messages, podcasts and streaming audio often use it. OPUS files usually end in .opus or .ogg. Opus audio in WebM files works too.
Yes. The converter is free and needs no account.
No. The file is converted on your device. Nothing is uploaded to a server.
192 kbps is a good default for speech and most recordings. Use 320 kbps for the largest possible MP3, or 128 kbps for smaller files.
Yes. WhatsApp voice messages use Opus audio. Choose the message file and convert it the same way as any other OPUS file.
No. Converting changes the format, not the sound itself. A higher quality setting gives the best MP3.
Because MP3 works with more devices and software. Players, car stereos and editors that do not support Opus can play MP3.
Yes. The converter runs in the browser, so it works with Chrome, Edge, Firefox and Safari.
Typical voice messages and recordings are fine. Very large files depend on the memory of your device, because the finished MP3 is held in memory for the download.
I build custom video processing, streaming, WebRTC and media infrastructure for production systems.