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Hammerspoon vs FastScripts: catalog facts
Hammerspoon	FastScripts
Free Free and open source under the MIT licence.	Freemium Free download, with a paid license available from Red Sweater.
macOS	macOS
Extensions reach a large part of macOS: windows, spaces, hotkeys, wifi, battery, USB, menu bar and more Lua is small enough to learn in an afternoon	Global and per-app keyboard shortcuts for scripts Search panel to find and run scripts quickly
Does nothing until you write a config file, so there is no point installing it casually macOS only	macOS only, requires 10.15 or later Full features need a paid license
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.