Keepresso

Keepresso is a free, open-source macOS app that lives in your menu bar and stops your Mac from falling asleep when you don't want it to. It uses real macOS power assertions — not fake mouse jiggles — to keep your machine awake based on the conditions you set. Whether you're running a long render, downloading a big file, or connected to a remote desktop, Keepresso makes sure the Mac stays up exactly as long as needed, then lets it rest.

The app covers a wide range of scenarios. You can close your MacBook's lid and keep working on battery, no external display required. A 'Keep me active' mode reports activity to macOS so you stay green in Teams and Slack instead of flipping to Away. For gaming, Keepresso auto-detects Steam titles and cloud gaming clients, quiets the AWDL radio to reduce latency spikes, and even raises CPU priority for the game. If you run a headless Mac mini or Studio, it guides you through setup and provides an experimental HiDPI virtual display for crisp Screen Sharing. There's a trigger engine that can keep the Mac awake while an AI agent is actively working, while charging, or when CPU usage is above a threshold. Everything is configurable in seven preference tabs, with a one-click menu.

Keepresso is built for anyone who relies on their Mac working unattended. Developers running builds or agents overnight, remote workers who need to stay active without jiggling the mouse, gamers who want smooth frame rates, and anyone who uses a headless Mac as a server will find it useful. It's free, open source, and respects your privacy — no account, no trackers, no license fee.