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KeepingYouAwake is a small menu bar utility for macOS (Version 10.13 and newer) that can prevent your Mac from entering sleep mode for a predefined duration or as long as it is activated.


Download the latest version here.

or install it via cask: brew install --cask keepingyouawake.

How does it work?

The app is a small wrapper around Apple's caffeinate command line utility. All current versions of macOS ship with this tool by default. You can read the manual page here.

Does it work on a MacBook with a closed lid?

No. Because of (sensible) macOS limitations and out of thermal considerations, KeepingYouAwake will only prevent sleep on desktop Macs and portable Macs with an open lid.

Is this dangerous?

This utility will not harm your Mac because it is based on an official command line tool by Apple. BUT I cannot guarantee anything, so use this tool AT YOUR OWN RISK.

Inspired by Caffeine

KeepingYouAwake is inspired by Caffeine from Lighthead Software. I used it for many years, but sadly it hasn't been updated in a while. Eventually in 2014 I decided to build a replacement for myself that was optimized for macOS Yosemite and used the caffeinate command line tool under the hood.

Still using old macOS versions?

  • Version 1.6.2 is the last release that supports macOS Sierra (10.12)
  • Version 1.5.2 is the last release that supports macOS Yosemite (10.10) and El Capitan (10.11)

Help wanted!

Do you want to improve the app or add useful features? Please go ahead and create pull requests. I'm thankful for any help.


Everything in this project is licensed under the MIT license. Provided image assets are also covered by this license.

Although it's not required please do not redistribute forked versions of the app with the same name and icon. Thanks!