Convert OGG or Opus to MP3
MP3 is already selected. Drop an .ogg or .opus file, such as a saved WhatsApp voice note.
OGG · OPUS → MP3
Sent to server: 0 B
Requests made by this tool while processing · how to verify
- Requests that could carry data
- 0
- Engine downloads (code, models)
- 0
- Analytics pings (no file data)
- 0
Counted with the browser's Performance API during the last job. It sees every request the page makes, but not what is inside them, so anything that is not a static download is counted above.
To check yourself: open DevTools → Network, clear the list, run the tool, and inspect each request. None will contain your file. You can also switch to offline after the page loads; tools whose engine is already downloaded keep working.
PresetOutput: MP3
Drop file here
or paste, or choose a file
OGG · OPUS → MP3
Choose one audio file: MP3, M4A, WAV, FLAC, OGG or AAC. It never leaves your device.
How to convert OGG or Opus to MP3
Drop the file and press Convert. Your browser decodes the OGG or Opus audio and the LAME encoder, loaded on first use, writes a 192 kbps MP3. Current Chrome, Edge and Firefox decode these formats; Safari may not, so use one of those if the file won't open.
Step by step
- 01Save the voice note or OGG file to your device.
- 02Drop it on the tool.
- 03Optionally drag the waveform handles to keep only part.
- 04Press Convert and download the MP3.
WhatsApp voice notes
WhatsApp voice messages are Opus audio saved as .opus or .ogg files. Many media players, email recipients, transcription tools and editors can't open them, but they handle MP3. Export or save the voice note from the chat, then convert it here.
Browser support
Decoding uses the browser's own audio engine. Chrome, Edge and Firefox open OGG and Opus files. Safari may not decode them, in which case the tool can't read the file; switch browser for this one.
- Voice notes are small; conversion takes a moment.
- The MP3 may be larger than the Opus file, because Opus is very efficient for speech.
Questions
How do I convert a WhatsApp voice note to MP3?
Save or export the voice note from the chat so you have the .opus or .ogg file, drop it here and press Convert. You get an MP3 that plays almost anywhere.
Why won't my OGG file open in Safari?
Safari may not decode OGG or Opus audio. Open this page in Chrome, Edge or Firefox instead.
Why is the MP3 bigger than the original?
Opus is very efficient for voice, so a voice note is tiny. A 192 kbps MP3 uses about 1.4 MB per minute.
Are my voice messages uploaded?
No. They're converted in this browser tab and never sent anywhere.