Brightness 100%
Timer Mode

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

暖白色 background

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#FFF5E1
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.

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.

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 暖白色

<p>暖白色屏幕工具将显示器填充为对眼睛友好的暖白色调。暖白色(约2700-3000K)是类似白炽灯泡的偏黄白色调。比纯白色对眼睛柔和得多。</p><p>暖白色背景非常适合夜间工作和阅读。通过减少蓝光发射来最大限度减少眼睛疲劳,帮助维持自然的睡眠节律。对于夜班工作者特别有益。</p><p>暖白色光在家庭环境中营造放松的氛围。将显示器用作客厅、卧室或休息区域的背景照明。暖色调给人家的温暖和舒适感。</p><p>在显示器校准中暖白色可用作参考点。通过比较屏幕的不同白点设置来确定您偏好的色温。</p>

Frequently Asked Questions – 暖白色

暖白色(2700-3000K)带有偏黄的色调,类似白炽灯泡。冷白色(5000-6500K)是偏蓝的白色,模拟日光。

是的,暖白色含有更少的蓝光,对褪黑素产生的抑制更少。夜间使用时比纯白色健康得多。

数字环境中暖白色常用的HEX代码包括#FFF5E6、#FFEEDD或#FDF4DC。确切值因模拟的色温而异。

可以,低亮度的暖白色背景是完美的夜灯。提供足够的视觉同时对睡眠质量的影响最小。

是的,低亮度的暖白色是很好的夜灯。提供足够的定向光线,温暖的色调对睡眠质量的影响最小。