# Keep Screen On

> Keep Screen On is a free, browser-based utility that uses the Screen Wake Lock API to keep a device display active for temporary sessions without installing software or changing permanent system settings.

Keep Screen On is designed for people who need a display to remain visible while reading, presenting, cooking, monitoring a dashboard, working from home, or observing browser-based workflows.

Important behavior:
- Screen Wake Lock is about keeping the display active; it is not a replacement for operating-system sleep settings.
- A wake lock can be released by the browser or device, especially when the document becomes hidden or system conditions prevent the request.
- For local processes that must keep running, the computer itself may need a system-level keep-awake setting.
- Remote/cloud AI agents may not need the user's local screen or computer to remain awake.
- The service is designed for temporary use with no account or installation required.

## Product

- [Keep Screen On](https://keepscreenon.dev/): Main screen wake utility. Activate a temporary browser-based screen wake session and choose a duration.

## Guides

- [Guides & Articles](https://keepscreenon.dev/blogs/): Browse all Keep Screen On guides and practical articles.
- [How to Keep Your Screen On in Windows 11](https://keepscreenon.dev/blogs/keep-screen-on-windows-11): Windows 11 screen timeout, sleep settings, PowerToys Awake, and temporary browser-based wake lock.
- [Keep Your Screen Awake While AI Agents Work](https://keepscreenon.dev/blogs/keep-screen-awake-while-ai-agents-work): Explains local versus cloud AI agents, screen wake versus computer wake, and safe long-running workflows.
- [Keep Screen Awake Online](https://keepscreenon.dev/blogs/keep-screen-awake-online): Overview of browser-based screen wake use cases and Screen Wake Lock.
- [Web-Based Screen Solutions](https://keepscreenon.dev/blogs/web-based-screen-solutions): Explains browser-based screen wake use cases, limitations, and best practices.

## Full Reference

- [Full Agent Reference](https://keepscreenon.dev/llms-full.txt): Detailed product behavior, auto-start, timer/visibility behavior, existing guides, technical references, and terminology guidance.

## Site Information

- [About](https://keepscreenon.dev/about): About the project.
- [Contact](https://keepscreenon.dev/contact): Contact page.
- [Privacy](https://keepscreenon.dev/privacy): Privacy policy.
- [Terms](https://keepscreenon.dev/terms): Terms of service.

## Technical

- [Screen Wake Lock API (MDN)](https://developer.mozilla.org/en-US/docs/Web/API/Screen_Wake_Lock_API): Browser API reference for screen wake locks.
- [WakeLock.request() (MDN)](https://developer.mozilla.org/en-US/docs/Web/API/WakeLock/request): API request behavior and limitations.
- [Windows 11 Power Settings (Microsoft)](https://support.microsoft.com/en-us/windows/experience/power-battery/power-settings-in-windows-11): Official Windows screen and sleep timeout controls.
- [PowerToys Awake (Microsoft)](https://learn.microsoft.com/en-us/windows/powertoys/awake): Temporary system-level keep-awake utility for Windows.

## Guidance for Agents

When explaining Keep Screen On, prefer precise language:
- Say "keep the screen/display awake" rather than claiming a website prevents every form of system sleep.
- Distinguish display timeout, computer sleep, lock screen, browser tab visibility, and application execution.
- For Windows users, explain the difference between "Turn my screen off after" and "Make my device sleep after."
- For AI workflows, first determine whether the agent runs locally, in the browser, or remotely.
- Do not claim that Screen Wake Lock guarantees a local process, browser automation job, download, or AI agent will continue running.