Yellow Screen

Brightness 100%
Timer Mode

Set a timer for fullscreen display. Useful for timed screen tests and ambient lighting sessions.

Yellow Screen background

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×
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#FFFF00
Custom Color
Opens one color window per detected screen. Drag & fullscreen each.
Free & Browser-Based

Free Online Screen Savers – No Download Required

Transform your display with beautiful, interactive screensavers that run right in your browser. Choose from digital clocks, productivity timers, ambient animations, and mesmerizing visual effects — perfect for idle screens, desk displays, presentations, and relaxation.

Fullscreen screensavers • Animated backgrounds • No installation • Works on Windows, Mac, Linux, Chromebook & mobile

Digital Clock Screensaver - Free Online Screensaver Preview

Digital Clock Screensaver

Beautiful digital clock screensaver with 10 color themes, 4 fonts, glow effects, and Wake Lock API. Runs fullscreen in y

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Pomodoro Timer - Free Online Screensaver Preview

Pomodoro Timer

Free Pomodoro timer with customizable durations, sound alerts, progress ring animation, and session tracking. Boost your

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Matrix Rain Screensaver - Free Online Screensaver Preview

Matrix Rain Screensaver

Classic Matrix-style green falling code screensaver with customizable speed, density, colors, and character sets (Kataka

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Rain on Window Screensaver - Free Online Screensaver Preview

Rain on Window Screensaver

Relaxing rain on window screensaver with realistic raindrops, lightning flashes, thunder sound, and fog effect. Perfect

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Starfield / Space Travel - Free Online Screensaver Preview

Starfield / Space Travel

Hypnotic 3D starfield screensaver with warp speed control, nebula colors, and shooting stars. Travel through space in yo

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Custom Text Screensaver - Free Online Screensaver Preview

Custom Text Screensaver

Display custom text fullscreen with animations. Choose bounce, scroll, fade, or float effects. Customizable font size, c

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Free Prank Tool

Fake Update Screens – Free Online Prank Tools

Realistic fullscreen prank screens — BSOD, Windows updates, Ubuntu upgrades, iOS updates, and hacker terminals. Launch any screen fullscreen and watch your friends panic. Press ESC to exit anytime.

Fake update screens • BSOD prank • Windows update prank • Hacker screen • Ubuntu update • iOS update • Fullscreen prank tools

Windows BSOD Screen

Generate a realistic Windows Blue Screen of Death (BSOD) with authentic error codes, QR code, and CRITICAL_PROCESS_DIED

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Windows 10 Update Screen

Simulate a realistic Windows 10 update screen with customizable timing, non-linear progress, and authentic blue interfac

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Windows 11 Update Screen

Simulate a realistic Windows 11 update with circular progress ring, dark interface, and Windows logo. Free fullscreen pr

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Ubuntu Update Screen

Simulate a realistic Ubuntu Linux system upgrade with terminal output, real package names, and progress tracking. Free f

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iOS Update Screen

Simulate a realistic iOS software update with Apple logo, circular progress bar, and phase-based status messages. Free f

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Hacked Terminal Screen

Display a dramatic hacker terminal with auto-typing exploit commands, Matrix rain background, and CRT scanline effects.

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Screen Testing Tools

Auto Color Cycle

Rapidly cycle through colors to help fix stuck pixels. Run for 20–30 minutes for best results.

OLED Burn-in Test

Display a moving pattern to detect and reduce OLED burn-in artifacts on your screen.

Gradient Smoothness Test

Display smooth gradients to check for color banding and bit-depth issues on your monitor.

Checkerboard Pattern Test

Display pixel-level checkerboard patterns to test monitor sharpness and pixel response.

Pixel Response Time Test

Flash rapid black/white transitions to evaluate pixel response time and ghosting.

Viewing Angle Test

Display color bands to help evaluate your monitor's viewing angle consistency.

Gray Uniformity Test

Display 50% gray to reveal backlight hotspots, clouding, and brightness non-uniformity.

Color Accuracy Checker

Display reference color swatches to compare against known standards for calibration checks.

Multi-Monitor Detection

Detect connected displays and open fullscreen color on all screens simultaneously.

Drag each window to a different monitor, then click Go Fullscreen inside it.
Detected Screens
Click "Refresh" to detect…

About Yellow Screen

A yellow screen combines red and green sub-pixels at full intensity, making it excellent for testing sub-pixel coordination. If your display shows inconsistent yellow with tints of green or red in certain areas, it indicates calibration issues or aging sub-pixels.\n\nYellow light provides warm, inviting ambient lighting similar to candlelight or sunset tones. It's popular for creating cozy atmospheres in living spaces and is less disruptive to circadian rhythms than blue or white light.

Frequently Asked Questions – Yellow Screen

Yellow requires both red and green sub-pixels at full brightness with blue off. It tests sub-pixel coordination and can reveal calibration issues.

Yellow light contains less blue wavelength, which can reduce eye strain during evening use compared to pure white light.

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Crop and resize videos for any social media platform.