Set a timer for fullscreen display. Useful for timed screen tests and ambient lighting sessions.
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
Beautiful digital clock screensaver with 10 color themes, 4 fonts, glow effects, and Wake Lock API. Runs fullscreen in y
Free Pomodoro timer with customizable durations, sound alerts, progress ring animation, and session tracking. Boost your
Classic Matrix-style green falling code screensaver with customizable speed, density, colors, and character sets (Kataka
Relaxing rain on window screensaver with realistic raindrops, lightning flashes, thunder sound, and fog effect. Perfect
Hypnotic 3D starfield screensaver with warp speed control, nebula colors, and shooting stars. Travel through space in yo
Display custom text fullscreen with animations. Choose bounce, scroll, fade, or float effects. Customizable font size, c
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
Generate a realistic Windows Blue Screen of Death (BSOD) with authentic error codes, QR code, and CRITICAL_PROCESS_DIED
Simulate a realistic Windows 10 update screen with customizable timing, non-linear progress, and authentic blue interfac
Simulate a realistic Windows 11 update with circular progress ring, dark interface, and Windows logo. Free fullscreen pr
Simulate a realistic Ubuntu Linux system upgrade with terminal output, real package names, and progress tracking. Free f
Simulate a realistic iOS software update with Apple logo, circular progress bar, and phase-based status messages. Free f
Display a dramatic hacker terminal with auto-typing exploit commands, Matrix rain background, and CRT scanline effects.
Rapidly cycle through colors to help fix stuck pixels. Run for 20–30 minutes for best results.
Display a moving pattern to detect and reduce OLED burn-in artifacts on your screen.
Display smooth gradients to check for color banding and bit-depth issues on your monitor.
Display pixel-level checkerboard patterns to test monitor sharpness and pixel response.
Flash rapid black/white transitions to evaluate pixel response time and ghosting.
Display color bands to help evaluate your monitor's viewing angle consistency.
Display 50% gray to reveal backlight hotspots, clouding, and brightness non-uniformity.
Display reference color swatches to compare against known standards for calibration checks.
Detect connected displays and open fullscreen color on all screens simultaneously.
<p>红色屏幕工具将显示器填充为纯红色。红色是对人眼夜视影响最小的颜色之一。因此在夜间工作、天文观测和军事应用中被优先使用。</p><p>在子像素测试中红色背景起着关键作用。每个像素由红、绿、蓝子像素组成。在全红色屏幕上可以轻松检测到故障的红色子像素。</p><p>摄影师和电影制作人可以将红色屏幕用于创意照明效果。用显示器作为红色光源拍摄戏剧性人像、恐怖场景或艺术项目。</p><p>红光对褪黑素产生的抑制也较少。如果您在夜间入睡前必须使用屏幕,红色背景对眼睛的伤害更小,有助于保持睡眠节律。</p>
眼睛负责夜视的视杆细胞对红光最不敏感。因此红光不会破坏暗适应。
可以,您可以在摄影暗房中将显示器用作红色安全灯。但请根据胶片灵敏度使用合适的红色调。
相比蓝光和白光,红光对褪黑素产生的影响要小得多。它是夜间使用最合适的屏幕颜色。
在全红背景上寻找暗点或不同颜色的像素。这些表明红色子像素存在故障。
当然可以。红光创造温暖而戏剧性的氛围。非常适合电影之夜、浪漫晚餐或主题活动。