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Keep Screen On

Request a browser screen wake lock locally while you read, cook, present, or follow a task.

Privacy: your files never leave your device. All processing happens locally in your browser.

How to use

  1. 1.Open this page in the tab you want to keep visible.
  2. 2.Select Keep screen on and confirm that the status says the browser accepted the request.
  3. 3.Keep the tab visible while you work, then select Turn off when you are finished.

About Keep Screen On

Keep Screen On requests a browser screen wake lock while you need this page to remain visible. Select Keep screen on before you start reading a recipe, following instructions, presenting information, watching a timer, or keeping a QR code on display. The request happens in the current browser tab only. There is no account, download, background service, tracking event, or device data upload. The page tells you whether the request is active instead of pretending that a visual timer or bright panel can control your device's power settings.

A screen wake lock asks the browser to keep the display awake while this tab remains visible. It is useful when ordinary inactivity would be inconvenient, but it is not a promise that a phone, tablet, or computer will stay on forever. Your browser and operating system remain in charge. They can refuse the request or release an active wake lock when the tab is hidden, the browser changes state, battery is low, a power-saving mode is active, or system policy takes priority. The active message means the browser accepted the current request; it does not override those controls.

Use the single button to turn the request on or off. When the browser accepts it, the status says that the screen wake lock is active. Select Turn off when you are finished so the normal display timeout can resume. If the request is denied, the page explains that the browser did not allow it and leaves your device settings unchanged. If the browser or device releases a lock that was active, the status changes immediately instead of leaving an inaccurate enabled indicator.

Visibility matters. Browser standards allow a screen wake lock only for a visible document. Moving to another tab, locking the device, minimizing the browser, or otherwise hiding the page can release it. If you still chose to keep the screen on, returning to this visible tab prompts the tool to request a new lock. It does not repeatedly request a lock in the background, and it does not attempt to bypass browser permissions, battery protections, parental controls, enterprise policies, or operating-system sleep rules.

Most modern browsers support the Screen Wake Lock API, including Safari 16.4 and later, but actual availability can still vary by browser version, private-browsing mode, installed web-app mode, device policy, and power state. An unsupported browser receives a clear message. The tool deliberately does not use a hidden video, audio loop, full-screen color panel, or another workaround because those techniques do not honestly guarantee that the display will remain awake and can create an inaccessible side effect.

For a timed focus session, pair this request with Pomodoro Timer, Online Countdown Timer, or Online Stopwatch. For a gentle visual panel near a camera, use Screen Light; it changes only the page panel, not your device brightness or sleep behavior. Keep Screen On is narrower: it asks the browser for the documented screen wake-lock capability and makes any release visible. When a task is important, keep the device connected to power when practical and confirm the displayed active status before relying on it.

Methodology & sources

The client feature-detects navigator.wakeLock, requests the standard screen type only from a visible document, retains and listens to the returned sentinel, releases it on user stop or unmount, and re-requests only after a visible-tab transition while the user still intends it to be enabled. Denial, unsupported browsers, and automatic release are explicit UI states; no media-playback workaround is used.

Frequently asked questions

Does this permanently stop my device from sleeping?
No. It asks the browser for a screen wake lock while this visible tab is open. Your browser, device, battery settings, and operating system can still deny or release it.
Why did the status change after I switched tabs?
A screen wake lock can be held only by a visible document. The browser may release it when the page is hidden; return to this tab to request it again.
Does this change my screen brightness or upload device information?
No. It does not change hardware brightness, device power settings, or browser preferences, and it does not upload any data.

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