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Quick Voice
Hold Control and speak naturally. CoThinker transcribes locally and returns your words where you were working.
Private Mac beta
CoThinker turns your voice and rough ideas into clear writing wherever you’re working.
Download CoThinker for MacFree beta · macOS 14.2 or later · Universal Apple Silicon + Intel build. Intel launch verification pending.
If macOS blocks CoThinker on first launch: try opening it once, then go to System Settings → Privacy & Security → Open Anyway.
Your thinking partner,
ready when you are.
01
Hold Control and speak naturally. CoThinker transcribes locally and returns your words where you were working.
02
Turn a rough request into a clearer, stronger prompt without leaving your flow.
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Use Control + 1 to speak an edit or compose a useful first draft from your intent.
Start in minutes
Install CoThinker, create a beta account, then try it safely in a built-in field. Permission requests explain exactly what they enable and only appear when the feature needs them.
Built for a private beta
Transcripts and history stay on your Mac. When you use CoThinker Cloud, your requested AI transformation is processed by CoThinker’s protected service; bringing your own Gemini key is optional and stays in your macOS Keychain.
Some desktop AI editors use a safe Copy fallback instead of direct insertion. Send feedback from the app—we’re actively improving the beta.