Question 1

What is Keep Screen On?

Accepted Answer

Keep Screen On is a free web-based utility that keeps your computer, tablet, or smartphone display awake. It prevents your screen from turning off, dimming, or auto-locking while you are reading, cooking, presenting, monitoring dashboards, or running code-all without downloading any desktop software or mobile apps.

Question 2

How does it keep my screen awake without installing anything?

Accepted Answer

Keep Screen On uses the official W3C Screen Wake Lock API standard. When you click the toggle, your browser requests a system-level Sentinel lock from your operating system (Windows, macOS, Android, iOS). The OS postpones its automatic idle screen timeout as long as the page remains open and visible.

Question 3

Is Keep Screen On really free? Are there any hidden fees or account limits?

Accepted Answer

Yes, Keep Screen On is 100% free with no account registration, no credit cards, and no usage limitations. All wake lock operations execute directly on your local device inside your web browser.

Question 4

How do timed sessions and custom timers work?

Accepted Answer

You can choose from preset durations (15 minutes, 30 minutes, 1 hour, 2 hours) or enter a custom duration in minutes. Once activated, the timer counts down in real time. When the timer finishes, the wake lock automatically releases and your computer returns to its normal power-saving schedule.

Question 5

What is the "Auto-start on next visit" feature?

Accepted Answer

When you select "No limit" (Indefinite mode), you can enable "Auto-start on next visit". This securely saves a local browser preference (via localStorage). Whenever you revisit or refresh Keep Screen On, it will automatically attempt to re-engage the screen wake lock without requiring you to click the button again.

Question 6

Does Keep Screen On work on iPhone and iPad?

Accepted Answer

Yes! Apple added native Screen Wake Lock API support starting with iOS 16.4 and iPadOS 16.4 in Safari and third-party iOS browsers. Simply open Keep Screen On in Safari or Chrome, tap the activate button, and keep the tab visible. Note: If Low Power Mode is enabled on your iPhone, Apple limits background features; we recommend disabling Low Power Mode in Settings → Battery.

Question 7

Does it work on Windows 11 and Windows 10?

Accepted Answer

Yes, fully. Keep Screen On works seamlessly in Google Chrome, Microsoft Edge, Brave, Opera, and Firefox on Windows 11 and Windows 10. It prevents Windows from triggering your screen timeout without needing administrative access or permanent registry changes.

Question 8

Does it work on MacBooks and desktop Macs (macOS)?

Accepted Answer

Yes. Keep Screen On works on macOS Sequoia, Sonoma, Ventura, and older versions across Safari (16.4+), Chrome, Edge, Arc, and Brave. It prevents your MacBook display or external monitor from dimming or locking while you are working.

Question 9

Does it work on Android phones and tablets?

Accepted Answer

Yes. Android browsers (Google Chrome, Samsung Internet, Edge, Brave, and Firefox) have robust support for the Screen Wake Lock API. It keeps your mobile screen turned on without changing your display timeout in Android system settings.

Question 10

Which web browsers support Keep Screen On?

Accepted Answer

All modern browsers are supported: Google Chrome (version 84+), Microsoft Edge (84+), Apple Safari (16.4+), Mozilla Firefox (126+), Arc, Brave, Opera, and Samsung Internet. If you are on an older browser version, updating your browser will enable full Screen Wake Lock support.

Question 11

Does keeping the screen awake drain battery faster?

Accepted Answer

Keeping the display backlight illuminated naturally consumes normal screen battery power. However, Keep Screen On itself is extremely lightweight and uses virtually 0% CPU and memory-it does not run heavy animations, video decoders, or mining scripts. For long sessions on battery power, lowering your display brightness will significantly conserve energy.

Question 12

Is it safe to use on locked-down company laptops without IT admin rights?

Accepted Answer

Yes. Because Keep Screen On runs entirely within standard web browser security boundaries, it does not require administrator privileges, software installations, or background executables. It is far safer and more compliant than downloading unverified third-party utilities.

Question 13

How does this compare to physical USB mouse jigglers or software jigglers?

Accepted Answer

Physical USB jigglers and executable mouse-moving utilities (.exe files) are increasingly detected and flagged by corporate endpoint security systems (EDR/MDM monitoring) because they simulate artificial hardware inputs. Keep Screen On does not move your cursor or simulate false keystrokes; it cleanly utilizes your browser’s official Screen Wake Lock API to keep the monitor illuminated.

Question 14

Does Keep Screen On collect my personal data or track my browsing?

Accepted Answer

No. Keep Screen On operates 100% locally on your device. We do not track keystrokes, access your webcam or microphone, log personal information, or use invasive trackers. Your privacy is fully respected.

Question 15

Why did the screen turn off when I switched tabs or minimized the browser?

Accepted Answer

Per the W3C specification, all operating systems and browsers automatically release screen wake locks when the active tab is minimized or hidden behind another fullscreen window. This is an intentional security and battery protection feature. To keep your screen awake, ensure the Keep Screen On tab is visible on at least part of your screen or placed on a secondary display.

Question 16

What is the difference between Display Sleep, System Sleep, and Lock Screen?

Accepted Answer

Display Sleep only turns off the monitor backlight to save power; background tasks continue running. System Sleep (suspend/standby) halts the CPU and pauses background network transfers. Lock Screen secures your user session with a password. Keep Screen On keeps the display illuminated and prevents display timeouts.

Question 17

Will closing my laptop lid or pressing the physical power button still lock my device?

Accepted Answer

Yes. Hardware events (closing the laptop lid or pressing the physical power/lock button) always take immediate precedence over software wake locks. Your device will sleep or lock normally when triggered manually.

Question 18

What should I do if my browser says "Wake Lock request rejected"?

Accepted Answer

Ensure that your browser window is currently focused and in the foreground when you click activate. Wake locks can be rejected if your device is in ultra-low battery mode, if the tab was opened in the background, or if an aggressive browser privacy flag restricts wake locks. Refreshing the tab and clicking activate while the page is focused resolves this in 99% of cases.

Question 19

Can I use this while AI agents, long builds, or code compilations are running?

Accepted Answer

Yes! Developers and engineers frequently use Keep Screen On to keep their monitors awake while monitoring AI agent executions, long npm builds, or terminal scripts. However, remember: if a local script requires the computer CPU not to enter deep sleep, you should also ensure your operating system sleep timeout is set appropriately.

Question 20

Is it good for presentations, slideshows, and video calls?

Accepted Answer

Keep Screen On is ideal for presenting. It prevents awkward screen dimming or lock screen prompts in the middle of Google Slides, PowerPoint presentations, Zoom calls, or keynote pitches without having to alter your permanent computer settings.

Question 21

Can I use this in the kitchen while following recipes?

Accepted Answer

Yes! Many users keep this tool active on an iPad or Android tablet on the kitchen counter so their recipe instructions remain readable without having to touch the screen with wet or flour-covered hands.

Question 22

Will Keep Screen On keep my downloads from stopping?

Accepted Answer

If your browser pauses downloads because the display turned off, Keep Screen On helps by keeping the display illuminated and the session awake. However, for massive overnight downloads, also verify in your OS settings that your computer is not configured to enter deep system sleep when idle.

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