Hey everyone, I built caffinated because the correct way to prevent macOS from sleeping is already in the operating system. It is called a power assertion, it is exposed through IOKit. No sudo, no kernel extension, no background daemon. The tray icon fills in when active and empties when idle. - IOKit system sleep prevention with a one-click tray toggle. - Five timer presets (15 min, 30 min, 1 hour, 2 hours, 5 hours), backed by a per-second countdown that releases all assertions automatically on expiry. Indefinite mode for jobs without a deadline. - Independent display sleep toggle (PreventUserIdleDisplaySleep), switchable mid-session, with a live assertion swap. - Launch at Login via a LaunchAgent plist in your own ~/Library/LaunchAgents/. No admin rights. macOS 11.0 or later. Apple Silicon and Intel. Free. Honest feedback welcome, particularly on the reboot restoration path and the live display-sleep assertion swap.

Caffinated

Menu-bar app that keeps your Mac awake.

Menu-bar app that keeps your Mac awake.