OGG to MP3 Converter — Opus & WhatsApp Audio to MP3
Convert OGG, Opus and WhatsApp voice notes into MP3 files that play everywhere. Free, no sign-up, and your files never leave your device.
Free, with no sign-up and no watermark. The file is processed in your browser and never uploaded.
OGG files contain Vorbis or Opus audio — WhatsApp and Telegram voice notes are usually Opus. Plenty of software can't play them. Convert OGG, OGA and OPUS files to MP3 here, entirely on your device.
Step by step
- Upload OGG or Opus files: Drag in .ogg, .oga or .opus files (exported voice notes work).
- Choose a bitrate: 128 kbps is ample for voice notes.
- Convert: Click Convert to MP3.
Handy for
Voice notes
Keep or forward messaging-app voice notes as MP3.
Game & app audio
Convert OGG sound effects for tools that need MP3.
Transcription
Some transcription services only accept MP3.
Archiving
Store recordings in the most widely supported format.
Good to know
Voice notes are mono speech: set Channels to Mono and a bitrate of 64 kbps for a small MP3 that still sounds clear.
Questions
Which formats can I open?
Anything your browser can decode: MP3, WAV, M4A/AAC, OGG (Vorbis and Opus), FLAC, WEBM and AIFF on most systems — and the soundtrack of MP4, MOV or WEBM videos. Very unusual codecs (for example AMR or WMA) usually can't be read.
Are my audio files uploaded anywhere?
No. Decoding, editing and encoding all happen inside your browser tab. Nothing is sent to a server, and closing the tab discards everything you haven't downloaded.
More Audio Tools tools
- FLAC to MP3 — Shrink lossless FLAC music into MP3 for phones, cars and older players.
- MP3 to WAV — Decode MP3 into uncompressed 16- or 24-bit WAV for editing software, CDs and samplers.
- Audio Cutter & Ringtone Maker — Select part of a song on its waveform, add fades and save it as a clip or a phone ringtone.
- Audio Joiner — Join several audio files in any order into one track, with optional crossfades or gaps.
- Online Voice Recorder — Record your voice with a live level meter, pause and resume, then save as MP3 or WAV.
- Change Audio Speed — Speed up or slow down audio from 0.5× to 3×, keeping the original pitch or shifting it like a tape.