Visualize Sound on Your Mac
Real-time subtitles and translation for any app. 100% Offline. 100% Private.

100% On-Device & Private

Your privacy is our priority. Caption Captain runs entirely on your Mac using advanced local processing. No voice data is ever sent to the cloud. 

App-Specific Audio

Isolate audio from specific apps like Zoom, YouTube, or Teams while ignoring system notifications. Get clean, precise subtitles every time.

Real-Time Translation

Break language barriers instantly. Translate spoken audio into your preferred language in real-time, displayed comfortably on your screen.