OPUS – Opus Audio
Opus is a modern open audio codec that performs well for both speech and music at low bitrates. It is used by WebRTC calls and Discord.
More OPUS conversionsDrop your OPUS files here
or click to choose OPUS files · up to 95MB each
How to convert OPUS to MP3
- Choose your files. Click Select File or drag your OPUS files into the upload box. You can add many at once.
- Pick the settings. MP3 is already selected as the output format. The conversion starts as soon as a file is added.
- Download. Each file appears in the list when it is ready. Download them one by one, or all together with Download all.
Why convert OPUS to MP3?
Opus is a modern, efficient audio format used for WhatsApp and Telegram voice messages and many online recordings. Many players and editors still do not open it, so converting Opus to MP3 makes voice notes easy to play, keep and share.
When to keep the OPUS
Keep the Opus file if it plays where you need it: it is smaller at the same quality.
Tips for the best result
- WhatsApp voice notes saved as .opus or .ogg can be converted.
- The MP3 uses high-quality variable bitrate encoding.
- Convert many voice notes at once and download them as a ZIP.
Common problems and fixes
- My voice note is an .ogg file.
- Use OGG to MP3: many apps save Opus audio with an .ogg name.
- The MP3 is bigger than the Opus file.
- Opus is more efficient than MP3. A bigger file is normal.
MP3 – MPEG Audio Layer III
MP3 is the most widely supported lossy audio format. It makes music files small enough to share and plays on virtually every device.
More MP3 conversionsConverting OPUS to MP3
- Your OPUS file is converted on our server and the MP3 result can be downloaded straight away.
Frequently asked questions
How do I convert a WhatsApp voice message to MP3?
Save or export the voice note from WhatsApp, upload it here, and download the MP3.
Does Opus to MP3 lose quality?
Re-encoding loses a tiny amount, but for speech it is not noticeable.
How do I convert OPUS to MP3?
Click Select File or drop your OPUS file onto the upload box. The converted MP3 appears in the list below with a download button. You can add many files at once and download them together as a ZIP.
Is it really free?
Yes. There is no sign-up and no watermark. To keep the service available for everyone there is a 95MB limit per file and a cap on how many files one connection can process in a short period.
Are my files stored?
Your upload is used only to make the converted file. Images are processed in memory; other files are written to a private temporary folder that is deleted as soon as the conversion finishes. Nothing is kept after the result has been sent back.
Will quality drop?
For images, a little, by design: the image is re-encoded at the Quality you choose (default 75%). Audio and video are re-encoded with high-quality settings; documents keep their text and layout as far as the target format allows. Converting never restores detail that is already missing from the original.
How this works: your file is uploaded over HTTPS and converted on this server with open-source engines (libvips for images, FFmpeg for audio and video, LibreOffice and Pandoc for documents, Calibre for ebooks, Ghostscript and Inkscape for PDF and vector files). Images are processed in memory; other files use a private temporary folder that is deleted as soon as the conversion finishes.