Caffeinator is a menu-bar app that helps you prevent your Mac from falling asleep. It's a simple but robust visual interface for the caffeinate command-line tool.
To download a prebuilt version of the latest stable release of Caffeinator, visit Releases.
Caffeinator is built upon the CaffeineKit framework, which provides elegant Swift abstractions for interacting with caffeinate. Caffeinator uses Carthage to manage this and other dependencies. To build Caffeinator from source, clone this repository and run carthage bootstrap --platform macOS --cache-builds in the cloned directory. After doing so, open, build, and run the project in Xcode.
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Why can't I open Caffeinator?
Probably because Caffeinator is not signed with a Developer Certificate. To open Caffeinator for the first time after installation, right-click on the app icon and click "Open," then confirm that you trust the app.
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Why isn't there an option to specify a utility as an argument to
caffeinate(as is shown in the man page)?Because there's really no practical benefit to it, and it would create needless hassle. If you want equivalent functionality, start the process manually, then find its PID and use process-based Caffeination.
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Why can't I start a timed Caffeination for a period of time shorter than one second?
Firstly, there isn't really any practical use for doing this. Secondly, the
caffeinateutility will not accept time values shorter than one second. (If you specify a time shorter than one second using the argument editor, you'll see that it runs indefinitely.) -
Why is this README so short?
Because Caffeinator has a website, which you can visit here and which also contains a help guide.