Prevent Sleep

Prevent Screen Sleep Online

NoSleepScreen helps keep your browser display active while you work, present, read, cook, monitor dashboards, or wait for long uploads.

No Install Needed

Use the homepage wake lock tool to prevent screen sleep without extensions, native apps, or permanent system setting changes. The tool is designed for temporary sessions: start it when you need the screen awake, then stop it when your task is finished.

When This Page Helps

A browser wake lock is useful during online meetings, classroom lessons, recipes, live dashboards, webinars, demos, long reads, and file transfers. It keeps the workflow lightweight because you do not need to change Windows, macOS, Android, or browser power settings for one short task.

Important Limits

Browser support, battery saver mode, operating system settings, and managed device policies may affect wake lock behavior. If the tool does not start, check the browser compatibility guide or read the FAQ for troubleshooting steps.

Privacy-first Behavior

NoSleepScreen does not need an account, uploaded files, or personal profile data to request a wake lock. The request happens in your browser and the visible status area tells you whether screen awake mode is active.