Opus to MP3
Convert Opus files, such as WhatsApp voice notes, to MP3. Free, with no upload.
Drop files to convert
See their format, then choose an output.
MP3, M4A, WAV, FLAC, and other audio, or a video with sound. You can also drag in a whole folder.
How to convert Opus to MP3
WhatsApp, Telegram, and Discord save voice messages as Opus, which many phones and apps won't play. Open one here, or many at once, and save each as an MP3. The Opus to MP3 converter runs in your browser, so your messages are never uploaded.
Step 1
Choose your Opus filesPick one or many, or drop them into the converter above.Step 2
Keep MP3MP3 is selected; choose another audio format if you need one.Step 3
Download the MP3Save each file when it's converted.
What to expect
- Supported inputs
- Opus files (.opus, .ogg, .weba), including WhatsApp and Telegram voice notes, and any other audio or video file.
- What happens
- The Opus sound is re-encoded as MP3. MP3 is selected first; you can choose another audio format.
- Limits
- Voice notes are short and convert in a moment; very long recordings depend on your device's memory.
Private by design
Your video stays on your device
Mastershot processes your file locally in this browser. It does not need to be uploaded to a server, and you do not need an account to use the tool.
- No upload
- No signup
- No watermark
Questions
Save the voice note from the chat. On Android, they're .opus files in WhatsApp's Media folder, under WhatsApp Voice Notes. Then drop the file here.
No. They're converted in your browser, so nobody else hears them.