WebFaz Audio Converter

OPUS to MP3

PT

Seus áudios são convertidos no navegador e não são enviados. Learn more

OPUS to MP3: convert WhatsApp voice messages

Voice messages from WhatsApp and other messaging apps are often saved as OPUS, a format that many computers and programs do not open. Convert to MP3 and keep, edit or send the recording wherever you need.

Drag one or more audio files here or click to choose

OPUS — one file or several at once

Batch queue⚡ 100% private

How to do it, step by step

  1. Save the voice message on the computer or phone and select the .opus file.
  2. Choose the Bitrate (128k is enough for voice).
  3. Click Convert all.
  4. Download the MP3.

See where to click, with an image of the tool →

When this is useful

Keep an important audio from a conversation

An MP3 opens in any player and can be archived or sent by email.

Transcribe or edit the audio

Many editing programs do not read OPUS; as MP3 it goes in without a problem.

Tips for a good result

  • For voice, 128 kbps and mono already sound good and produce small files.
  • To turn the audio into text, after converting use WebFaz Transcription.

What this tool does not do

  • It only converts .opus files you already have saved: the app does not access WhatsApp.
  • Converting between lossy formats reduces the quality a little.
  • The new file carries the “WebFaz.com” credit in the metadata (comment and artist).

Frequently asked questions

How do I get the audio out of WhatsApp?
In the app itself, use the option to share or save the audio and choose the file on the computer.
Does the audio pass through any server?
No. The conversion happens in your browser.

More Audio Converter tools

Text written by Marcelo Amantino · updated October 18, 2026 · who we are