Opus to MP3 Converter

Pick your .opus voice notes, tap Convert, share the MP3 or WAV. Batch mode, works offline, nothing is uploaded.

Turn .opus voice notes into MP3 or WAV files that play everywhere. Pick one file or a hundred, tap Convert, and share the results to Files, Mail, AirDrop or any app.

Everything happens on your iPhone. No upload, no account, no waiting for a server, and it works in airplane mode.

WHY YOU NEED IT Voice messages from chat apps arrive as .opus files (names like PTT-20260908-WA0012.opus). Most music players, editors, transcription tools, car stereos and older devices cannot open them. This app converts them to MP3 or WAV in seconds.

HOW IT WORKS

1. Long-press a voice note in your chat app, tap Share, then "Copy to Opus to MP3 Converter", or save it to Files and pick it in the app
2. Choose MP3 or WAV
3. Tap Convert, then Share each file

BATCH CONVERSION • Pick many files at once from Files, iCloud Drive or any file provider • Convert them all with one tap • Each result gets its own Share button

INPUT FORMATS .opus, .ogg, .oga, .m4a, .aac, .mp3, .wav, .caf, .aiff, .flac, .amr, .3gp and more

OUTPUT FORMATS • MP3 (128 kbps): plays on everything, stays small • WAV (16-bit PCM): lossless, ideal for editing and transcription

PRIVATE BY DESIGN • 100% on-device processing • No internet connection required • No account, no sign-up, no analytics • Your recordings never leave your phone

Free, with no watermarks and no limits.

Opus to MP3 Converter is an independent utility. It is not affiliated with, endorsed by, sponsored by, or in any way officially connected with WhatsApp LLC or Meta Platforms, Inc. WhatsApp is a registered trademark of Meta Platforms, Inc.