keyboard-cleaner

Install command: 
brew install --cask keyboard-cleaner

Name: Keyboard Cleaner

Desktop shield and keystroke interceptor

https://jan.prima.de/~jan/plok/archives/48-Keyboard-Cleaner.html

Cask JSON API: /api/cask/keyboard-cleaner.json

Cask code: keyboard-cleaner.rb on GitHub

Current version: 1.3

Requirements: macOS >= 11

Analytics:

Installs (30 days)
keyboard-cleaner 61
Installs (90 days)
keyboard-cleaner 178
Installs (365 days)
keyboard-cleaner 883