How to use it
- Drop your OGG, OGA or OPUS files.
- For voice messages, choose 96 kbps and Mono.
- Click Convert to MP3 and save the file or ZIP.
What are OGG and OPUS files?
OGG is an open container format. It usually holds Vorbis audio (games, Linux apps, some music downloads) or Opus audio (voice messages from WhatsApp and Telegram, Discord recordings, web calls). Both are efficient formats, but many car stereos, older phones, editing programs and upload forms only take MP3.
Voice messages are mostly mono speech at a low bitrate, so convert them at 96 kbps mono: the MP3 sounds the same and stays small. For music in OGG Vorbis, 192 kbps stereo is a good default.
Browser support and privacy
The conversion uses your browser's own audio decoder. Chrome, Edge and Firefox decode OGG and Opus; if a file won't open in your browser, try one of those. OGV video files are accepted too: the soundtrack is saved as MP3.
Everything happens on your device and nothing is uploaded, which matters for private voice messages. You can convert several files at once; they download together as a ZIP.
Frequently asked questions
How do I convert a WhatsApp voice message to MP3?
Save or export the voice message (it's an OPUS or OGG file), drop it here, choose 96 kbps Mono and convert.
Why won't my OGG file open?
Your browser may not decode that codec. Try Chrome, Edge or Firefox. The file may also be damaged.
Is OGG better than MP3?
At the same bitrate, Vorbis and especially Opus usually sound as good or better. MP3's advantage is that almost every device plays it.
Last updated: November 12, 2026