caffeine-alternative

Keep your Mac awake from the menu bar, even with the lid closed. A free, open source caffeine / Amphetamine alternative for macOS, built for developers running long jobs and AI agents.

NoSleep page: a free web app that keeps your screen awake and stops your computer or phone from sleeping, with timers and a floating window. No install, uses the Screen Wake Lock API.

A macOS menu bar app that keeps your MacBook awake during scheduled time windows and auto-wakes from sleep. Built with SwiftUI + IOKit power management for Apple Silicon.

Hassle-free screen blackout and awake modes that keep your PC, Apps & AI ticking. Free for Windows 10 and 11.

Close the lid. Keep working. A tiny macOS menu-bar app that keeps your Mac awake, even with the lid closed and no external monitor.

Tiny menu bar caffeinator for macOS — ~90 lines of Swift. One click to keep your Mac awake. No settings, no telemetry, no fluff.

Prevent your Mac from sleeping with scheduled wake times and maintenance windows designed for Apple Silicon.