Convert OPUS voice notes to MP3

WhatsApp saves voice notes as .opus files that most players, email clients and computers refuse to open. This page turns them into ordinary MP3 on your phone or computer.

Pick the file from your WhatsApp media folder or a chat export, press Convert, and download an MP3 you can forward, attach or keep. Trim it first if you only need a part.

Voice notes are personal; nothing here is uploaded, and the page works offline.

How to use it

  1. Pick the OPUS or OGG file — from a chat download, a recorder app or a video.
  2. MP3 is already selected; move the quality slider if you need a smaller file.
  3. Trim the start and end if you only need part of it.
  4. Press Convert and download the MP3.

Supported formats and limits

Input
OPUS, OGG, M4A, AMR, and any audio your browser can play
Output
MP3 or WAV
Extras
Trim, mono, split into parts
Where it runs
In your browser; nothing uploaded

Not for: Turning speech into text — use the transcription page for that.

Frequently asked questions

Are my files uploaded to a server?
No. This conversion runs entirely inside your browser using your own device’s processing power. The file never leaves your computer or phone, which is why it also works when your connection drops.
Where do I find the WhatsApp voice note file?
On Android: Internal storage › WhatsApp › Media › WhatsApp Voice Notes. On iPhone: use “Export chat” or share the note to Files first.
Does it work for Telegram .ogg notes too?
Yes. OGG, OPUS, M4A and AMR are all decoded the same way.

More tools

Related tools