xmodmap ☆
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Description:
Modify keymaps and pointer button mappings in X
Type: Formula  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: System utilities
Tags: x11 keyboard remapping xorg linux utility
Install: brew install xmodmap
About:
Xmodmap is a command-line utility used to modify keymaps and pointer button mappings in the X Window System. It allows users to remap keys, change modifier assignments, and customize keyboard layouts without altering system-wide configurations. This tool is essential for users needing specific keyboard configurations for development workflows or accessibility requirements.
Key Features:
  • Dynamic key remapping without reboot
  • Modifier key reassignment (Ctrl, Alt, Shift)
  • Pointer button mapping customization
  • X11 resource database query and modification
  • Scriptable configuration via resource files
Use Cases:
  • Remapping Caps Lock to Escape for Vim users
  • Swapping Ctrl and Caps Lock for ergonomic keyboard setups
  • Configuring keyboard layouts for international users
  • Customizing mouse button assignments for accessibility
Alternatives:
  • setxkbmap – Better for system-wide layout changes; Xmodmap is more granular for session-specific tweaks
  • xkbcomp – Compiles keyboard layouts; Xmodmap provides simpler runtime modifications
Version History
Detected Version Rev Change Commit
Nov 20, 2024 12:23am 0 VERSION_BUMP 794a7277
Sep 11, 2024 4:21am 0 VERSION_BUMP dc16a668
Sep 18, 2023 3:51pm 0 VERSION_BUMP 74adb2a7
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