Convert OPUS to MP3
You want to keep or edit a WhatsApp voice note: WhatsApp exports them as .opus and many apps cannot open them.
Free tool · on your device
GUIDE · AUDIO AND VOICE
How to convert WhatsApp audio (OPUS) to MP3
Save the voice note to your device (WhatsApp stores it as .opus or .ogg), open it in the free Convert OPUS to MP3 tool (MP3 is already selected), choose 128 kbps, which is enough for speech, and press “Convert audio”. Download the MP3: it opens on any phone, computer or app.
Open Convert OPUS to MP3Free with an account, no subscription or watermark. Your files never leave your device.
STEP BY STEP
5 steps
Save the voice note
In the chat, press and hold the audio and share or save it to your device, or use “Export chat” with media.
Open Convert OPUS to MP3
Free and in your browser: the audio never leaves your device. It is the Audio converter with MP3 already selected, up to 10 files at once.
Choose MP3 and quality
MP3 is already selected. For speech, 128 kbps is enough; for music, 192 kbps or more.
Convert and download
Press “Convert audio” and download each MP3 or all of them in a ZIP.
Trim or join
The MP3 cutter removes what you do not need at the start and end; Merge audio files joins several voice notes into one.
TOOLS IN THIS GUIDE
What you will use
Audio converter
MP3, WAV, FLAC and, if your browser can, OGG and M4A.
Free tool · on your device
MP3 cutter and ringtone maker
Cut with the waveform in view, make ringtones.
Free tool · on your device
Merge audio files
Several files in one, with a pause or crossfade.
Free tool · on your device
TIPS
To get it right
Tip 1
Chrome, Edge and Firefox open OPUS and OGG. On iPhone it depends on the Safari version: if it will not open, convert it on a computer.
Tip 2
To join several voice notes into one MP3, open them directly in Merge audio files, which accepts OPUS, and choose “With a pause”: there is no need to convert them first.
Tip 3
If you want the words rather than the audio, the Transcribe to text tool turns it into text.
WhatsApp audio to MP3: common questions
Why can’t I open a WhatsApp audio file?
WhatsApp stores voice notes as OPUS, a very light speech format that many players, cars and editing apps cannot open. MP3 opens everywhere.
Does converting to MP3 lose quality?
Both formats are compressed, so converting does not improve the audio; at 128 kbps speech sounds practically the same and the file stays small.
Is my audio uploaded?
No. It is converted inside your browser and not sent to any server.
Is it free?
Yes. The free tools in this guide run in your browser and add no watermark. Tools that create files share the 30 welcome uses of your free account, then cost 1 credit per use; tools that show the result on screen have no usage cap. You can try them before signing up; to download the result or keep using them we ask for a free account, with no subscription.