key-codes ☆
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Description:
Display key code, unicode value and modifier keys state for any key combination
Type: Cask  |  Latest Version: 2.2.3@0  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  @manytricks  |  formulae.brew.sh
Category: Developer tools
Tags: keyboard developer-tools utilities productivity debugging
Install: brew install --cask key-codes
About:
Key Codes is a utility that displays the key code, Unicode value, and modifier key states for any key combination pressed on your keyboard. It provides immediate visual feedback, making it an essential tool for developers and power users who need precise keyboard information. This utility helps in debugging input handling and understanding complex key events.
Key Features:
  • Displays key code and Unicode value in real-time
  • Shows state of modifier keys (Shift, Control, Option/Alt, Command)
  • Supports input from both physical keyboard and mouse clicks
  • Clean, minimal interface that stays on top of other windows
Use Cases:
  • Developers debugging keyboard event handling in applications
  • Users creating custom keyboard shortcuts or macros
  • Writers and designers verifying special characters and Unicode input
Alternatives:
  • Keyboard Codes – Similar functionality but free alternative with fewer features
  • EventViewer – Built-in macOS tool that shows more detailed event information but less user-friendly
Version History
Detected Version Rev Change Commit
Aug 5, 2025 2:20pm 2.2.2 0 VERSION_BUMP 20eb130d
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