Caption.im — Real-Time AI Captions for Your Mac Caption.im is a privacy-first AI captioning assistant designed for macOS. It turns any audio on your Mac into real-time captions, instant translations, recordings, and structured meeting notes — powered locally on your device. Unlike browser extensions or meeting bots, Caption.im captures system audio directly, so it works across almost any application: Zoom, Google Meet, Microsoft Teams, YouTube, online courses, podcasts, livestreams, webinars, and recorded videos. With Caption.im, you can generate live subtitles for conversations, translate multilingual content in real time, record important audio, and transform long discussions into clear summaries, key points, action items, and mind maps. Built with local AI and Local LLMs in mind, Caption.im helps you keep your conversations private while improving productivity, accessibility, and information equity. No bots joining your meetings. No browser dependency. No complicated setup.
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