Cotabby icon
Cotabby icon

Cotabby

On-device AI autocomplete working system-wide in any macOS text field delivers ghost text suggestions at the cursor, uses screenshot OCR for visual context, and responds rapidly on Apple Silicon. No cloud processing ensures privacy. Open source and seamlessly integrates with native or third-party apps.

Cotabby screenshot 1

Cost / License

Application type

Platforms

  • Mac
Cotabby screenshot 1
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+2
Cotabby screenshot 3
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Features

Properties

  1.  Lightweight
  2.  Distraction-free
  3.  Privacy focused
  4.  AI-Powered

Features

  1.  Autocompletion
  2.  Ad-free
  3.  No registration required
  4.  No Tracking
  5.  Works Offline
  6.  AI Writing
  7.  Sits in the menu bar
  8.  Low Latency
  9.  Local AI

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AlternativeTo Category

AI Tools & Services

GitHub repository

  •  1,015 Stars
  •  66 Forks
  •  85 Open Issues
  •   Updated  
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What is Cotabby?

Cotabby is a menu bar app that brings inline autocomplete to the text field you're already using. Keep typing in your host app: Cotabby watches the focused field, generates a continuation, and renders it as ghost text next to your caret. Press Tab to accept a chunk, keep pressing to advance, or just keep typing to diverge.

Everything runs on-device. No hosted API, no cloud round-trip.

Features:

  • System-wide completions -- Works in any macOS text field (Safari, Notes, Mail, etc.)
  • Ghost text UI -- Suggestions appear as translucent overlay text at your cursor
  • 100% local -- All inference runs on-device. No data ever leaves your Mac
  • Visual context -- Screenshot OCR gives the model awareness of what's on screen
  • Low latency -- Optimized for fast response on Apple Silicon

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