About

Macnap Blocker keeps your Mac awake for exactly as long as you need — a presentation, a long download, a movie — then quietly steps aside. One click from the menu bar, no Terminal, no fuss.

Screenshots

Macnap Blocker

Features

Prevent display and system sleep on demand

Timed durations or keep-awake until you stop

Daily scheduling and a global shortcut (⌃⌥⌘A)

Scheduled wake from sleep, too

Notifications when a session ends

Lightweight menu-bar app

Frequently asked questions

What does Macnap Blocker do?

Macnap Blocker is a menu-bar app that keeps your Mac (and its display) awake, preventing sleep and the screen saver from kicking in when you don't want them to.

Can I keep my Mac awake for a set time?

Yes. You can pick a duration, and Macnap Blocker will keep your Mac awake for exactly that long, then let it sleep normally again.

Can I schedule when it stays awake?

Yes, Macnap Blocker includes scheduling so you can automatically keep your Mac awake during specific times.

Is there a keyboard shortcut to toggle it?

Yes, there's a global shortcut so you can flip anti-sleep on or off instantly without opening the menu.

How does it keep the Mac awake?

It uses macOS's built-in power assertion to prevent idle display sleep, so it's a clean, system-friendly way to stay awake.

Is it free to try?

Yes, enjoy a free 7-day trial, then choose a monthly, quarterly, annual, or lifetime license to keep it.