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Hammerspoon

Hammerspoon is a free, open-source chat app for macOS. Staggeringly powerful macOS desktop automation with Lua. It has 16,334 GitHub stars and is released under the MIT license. Its source code is on GitHub at Hammerspoon/hammerspoon.

github.com/Hammerspoon/hammerspoon (opens in a new tab)

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About Hammerspoon

This is a tool for powerful automation of OS X. At its core, Hammerspoon is just a bridge between the operating system and a Lua scripting engine.

Install Hammerspoon

Package names found in the project's README. Each links to its package page so you can check the publisher first.

Homebrew (macOS)
brew install hammerspoon

Package page (opens in a new tab)

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FAQ

Hammerspoon FAQ

Still curious? Email info@appsgit.com.

Is Hammerspoon free and open source?

Yes. Hammerspoon's source code is public on GitHub under the MIT license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.

How do I install Hammerspoon?

Homebrew: brew install hammerspoon. The commands are on this page. Installers are also on its GitHub Releases page (latest: 1.1.1).

Is Hammerspoon still maintained?

The repository's most recent commit was on Jul 8, 2026. appsgit only lists apps whose repository had a commit in the last six months.