White Screen PRO – Blank Screen & Whiteboard

About

One click gives you a perfectly blank screen - pure white, black, or any color you pick. Go fullscreen and your monitor becomes a light source, a clean backdrop, or a whiteboard you can draw and write on.
WHAT YOU CAN USE IT FOR

White screen - soft light for video calls, photography fill light, webcam lighting, or tracing
Black screen - hide your desktop instantly, rest your eyes, or use as a clean dark backdrop
Color screen - test your display for dead pixels and backlight bleed by cycling solid colors
Whiteboard - sketch ideas with the pencil and type notes anywhere with the text tool
Presentations & teaching - fullscreen drawing board for quick explanations

TOOLS (tap the ⌄ three-dot button, top right)

10 color swatches plus a custom color picker - white, dark, gray, red, orange, yellow, green, blue, purple, pink
Pencil tool - freehand drawing; ink automatically flips black/white to stay visible on any background
Text tool - click anywhere and type
Undo / Redo - every stroke, note, and clear is reversible (Ctrl/Cmd+Z, Ctrl/Cmd+Shift+Z)
Fullscreen toggle (F) and one-click Clear
The glass toolbar fades away when your mouse is idle, leaving a 100% clean screen

PRIVATE BY DESIGN

No account, no network requests, no data collection. The only permission is local storage, used to remember your last color. Works fully offline.
Keyboard shortcuts: F fullscreen · T text · P pencil · C clear · Ctrl/Cmd+Z undo · Ctrl/Cmd+Shift+Z redo

Disclaimer
None needed - no third-party brands referenced.