How to Keep Your Computer Awake Without Changing Settings
Tired of your screen going dark during presentations or downloads? Here are the best ways to keep your computer awake without touching system settings.
You're in the middle of a presentation and your screen dims. You're downloading a large file and your laptop goes to sleep. You're following a recipe and the display turns off every 30 seconds.
The obvious fix is to change your power settings, but that affects everything: your battery drains faster, your screen stays on when you don't want it to, and you have to remember to change it back.
Here are better solutions.
1. Use a Keep Awake Browser Extension
A keep-awake extension prevents your computer from sleeping, all from your browser. Click the icon to toggle it on, and your screen stays active. Click again to turn it off. No system settings changed.
How it works: These extensions use the browser's Screen Wake Lock API (or similar techniques) to signal to the operating system that the display should stay on.
Best for: Temporary situations like presentations, downloads, or following instructions on screen.
We're building Keep Awake as part of Extend Forge. One click, optional timer, zero system changes. Join the waitlist.
2. Use a Caffeinate Command (macOS)
If you're on a Mac, the built-in caffeinate command keeps your Mac awake from the terminal.
# Keep awake for 1 hour (3600 seconds)
caffeinate -t 3600# Keep awake until you press Ctrl+C caffeinate ```
Limitations: Requires the terminal. Not convenient for non-technical users. Stops when you close the terminal window.
3. Use Presentation Mode (Windows)
Windows has a built-in presentation mode that prevents sleep.
- Press Win + X
- Select "Mobility Center" (on laptops)
- Click "Turn on" under Presentation Settings
Limitations: Only available on laptops. Not available on Windows desktop editions.
4. Change Power Settings (Temporary)
As a last resort, you can temporarily change your power settings.
On Windows: Settings > System > Power & battery > Screen and sleep > Set "When plugged in, turn off my screen after" to "Never"
On macOS: System Settings > Displays > Advanced > Prevent automatic sleeping on power adapter
Remember to change it back. This is the main downside of this approach.
Which Method Is Best?
| Method | Ease | Temporary | Remembers to Revert |
|---|---|---|---|
| Browser extension | Very easy | Yes | Yes (auto) |
| caffeinate (macOS) | Moderate | Yes | Yes (auto) |
| Presentation Mode | Easy | Yes | Manual |
| Power settings | Easy | No | Manual |
A keep-awake browser extension is the simplest option for most people. It's temporary by design, easy to toggle, and doesn't touch your system settings.
A Better Way to Stay Awake
We're building Keep Awake to make this trivially easy. One click on, one click off. Optional timer. No system changes. Free and available for every major browser.
Join the waitlist to try it first.