reikey ☆
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Description:
Scans, detects, and monitors keyboard taps
Type: Cask  |  Latest Version: 1.4.2@0  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  @objective_see  |  formulae.brew.sh
Category: Security
Tags: security macos keylogger detection privacy
Install: brew install --cask reikey
About:
ReiKey is a security utility designed to detect and monitor unauthorized keyboard monitoring software on macOS. It actively scans for keyboard taps and alerts users to potential keylogging threats, helping to safeguard sensitive information. The tool provides real-time monitoring to ensure system integrity and user privacy.
Key Features:
  • Real-time keyboard tap detection
  • Scans for kernel-level and user-space keyloggers
  • Provides detailed alerts on detected threats
  • Lightweight and unobtrusive background monitoring
Use Cases:
  • Detecting keyloggers installed by malware or spyware
  • Verifying system security against unauthorized keyboard monitoring
Alternatives:
  • KnockKnock – Focuses on persistent software detection rather than real-time keyboard monitoring
  • Little Snitch – Network traffic monitor that can detect outbound keylogger data but not the taps themselves
Version History
Detected Version Rev Change Commit
Sep 15, 2025 1:02pm 1.4.2 0 VERSION_BUMP 4122083c
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