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Hammerspoon vs Keysmith: catalog facts
Hammerspoon	Keysmith
Free Free and open source under the MIT licence.	Freemium Free version with all features is limited to five macros; a purchase removes the limit.
macOS	macOS, Browser extension
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	Builds macros by recording instead of scripting App- and website-specific hotkeys
Does nothing until you write a config file, so there is no point installing it casually macOS only	Free version limited to five macros macOS only, requires Catalina or later
Downloadable app	Downloadable app, Browser extension
Open source	Closed source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it 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.