About the Opus to MP3 Converter
Opus is a modern codec used for voice messages, video calls and streaming. It sounds great at small sizes, but many audio editors, car stereos and older players cannot open .opus files.
SoundBench decodes Opus and re-encodes it as MP3 on your device. Voice notes stay private because nothing is uploaded.
How to use the Opus to MP3 Converter
- Drop your .opus or .ogg voice files onto the converter. MP3 is already selected.
- Choose 128 kbps for voice notes or 192 to 320 kbps for music.
- Click Convert and download the MP3 files.
Frequently asked questions
How do I convert a WhatsApp voice message to MP3?
Save or export the voice message from WhatsApp (it is an .opus or .ogg file), drop it onto this page and click Convert. The MP3 downloads straight away.
Will the MP3 sound better than the Opus file?
No. Converting cannot add detail that the Opus encoder removed. Use a bitrate high enough not to lose more; 128 kbps is plenty for speech.
Does Opus to MP3 work on iPhone?
Yes. Safari can run SoundBench; files Safari cannot decode natively are decoded with FFmpeg in the page.