Screen Test
Screen Test with local browser interaction and inspection.
Screen Test
Choose a solid color and inspect bright/dark pixels, color differences or uneven areas. Clean the screen and adjust its brightness as needed. This tool does not automatically detect defects or measure color accuracy or refresh rate.
Click or press → / ↓ for the next color, ← / ↑ for the previous; Esc or double-click exits. Tab restores hidden controls; double-tap exits on touchscreens. Browser restrictions may prevent fullscreen; in-page mode is labeled. No automatic flashing or timed color changes.
Only preparation status is reported. Colors and observations are not uploaded; leaving restores the page.
Processed content stays in this page’s memory and cannot be recovered after clearing or closing.
About this tool
Inspect the screen using white, black, red, green and blue. Fullscreen, arrow/click switching, hide controls and exit are supported; unavailable fullscreen is explicitly shown as an in-page mode. Observe pixels and colors yourself; screen quality is not automatically diagnosed. Only preparation/export actions are reported; event details, keys, coordinates and observations are not uploaded.
How to use
- Choose white, black, red, green or blue.
- Click or use arrows to change colors; hide controls to inspect all pixels. In-page mode is labeled if fullscreen is unavailable.
- Exit with Esc, double-click or Exit; Tab restores hidden controls.
Frequently asked questions
Does this automatically certify hardware?
No. Keyboard/mouse tools show events received by the browser; OS shortcuts, Fn and browser gestures may be intercepted. Screen inspection is manual. The 10-second preparation limit does not limit your testing session; closing the page ends it.
Discussion & comments
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