Caffeine Utility

Whether you’re reading a long article, downloading a large file, listening to music, watching a video, or maybe even rendering a video—sometimes you want your Mac to not display the screensaver or go to sleep. Caffeine offers you exactly that—and not much else. No ads. No subscriptions. No in-app purchases. No user tracking. No “analytics,” “telemetry,” “data collection,” “product improvement”—or any other euphemism for surveillance. Just a tiny, single-purpose utility that runs locally, on your hardware. You buy it once—you own it. Caffeine inherits the open-sourced code from the well-known 2000s-era application but adds the modern security and performance on top of it. Today’s Caffeine is written in Swift—the fast, safe, and modern programming language—and is fully optimized for both Intel and Apple silicon (M-series) chips. It features support for the Dark Mode, high-resolution Retina displays, App Sandbox, Hardened Runtime, and more—all while retaining the same low resource footprint: Caffeine takes about 8 MB on the disk and uses under 20 MB of RAM in total (that’s less than an empty browser tab). It’s hard to believe such a tiny app can be improved that much. Download, launch, and enjoy!