Keyd

What is Keyd?

Keyd is a userspace daemon that intercepts keyboard events and lets you remap keys, create layers, and define complex shortcuts. It has been in the Linux ecosystem for several years and is packaged for Arch, Debian, and openSUSE, indicating reasonable maturity and community support. The project is maintained, but it does not aim to be a full scripting engine like AutoHotkey; it focuses on key translation and simple macros.

Keyd is aimed at power users who want precise control over their keyboard layout without writing full scripts. It works well for people who use custom keymaps for ergonomic keyboards, gaming setups, or multilingual typing. Because it runs as a systemd service, the changes apply globally and persist across sessions.

Compared with AutoHotkey, Keyd feels more minimalistic: you define mappings in a plain text configuration file rather than a scripting language, and there is no built‑in GUI. The learning curve is steeper if you need conditional logic, but for pure key remapping it is faster and lighter than AutoHotkey's Windows implementation.

Best for: Users who need reliable, system‑wide key remapping without the overhead of a full scripting engine.

Key features of Keyd

• Global key remapping via a simple config file
• Layer support for context‑dependent mappings
• Support for modifier keys and chords
• Runs as a systemd service for persistence
• Works with any X11 or Wayland session
• Low CPU and memory footprint

Tips for Windows users

AutoHotkey scripts cannot be used directly; you’ll need to rewrite them in Keyd’s keymap syntax. Start by listing the hotkeys you use most and translate them into simple "from → to" lines in ~/.config/keyd/default.conf. Enable the service with "systemctl --user enable --now keyd" and test changes with "keyd reload". Expect to lose some of AutoHotkey’s conditional scripting, so keep a separate tool for those cases if needed.