OpenAlive
Keep your PC active. Automatically.
OpenAlive prevents your Windows workstation from going idle by simulating subtle mouse movements and optional keystrokes at configurable intervals — so your status stays green and your screen stays on while you work.
It runs on your schedule: active only during your work hours, with an automatic lunch-break pause, and a manual toggle anytime. Lives quietly in the system tray — no admin rights, no drivers, no physical jiggler — with a color-coded icon (Active / Inactive / Outside hours / Lunch). Also available as a portable .zip alongside the installer.
Free and open source (GPLv3), zero telemetry — no network requests, nothing leaves your machine. Available in 8 languages: English, Español, Português (BR), Français, 日本語, 中文简体, 한국어, Kreyòl ayisyen.
Single .exe, ~4 MB installed, ~5–15 MB RAM at idle.