Brightness 100%
Timer Mode

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

白色 background

px
×
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#FFFFFF
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 白色

<p>我们的白色屏幕工具将整个显示器填充为纯白色。这个简单但强大的工具可用于多种不同目的。从坏点测试到屏幕清洁,白色屏幕的应用范围非常广泛。</p><p>清洁屏幕时,白色背景让您清楚地看到灰尘、指纹和污渍。深色污渍在白色背景上特别明显,这样您就可以确保屏幕已被彻底清洁。</p><p>摄影师可以将白色屏幕用作光源。拍摄小物件或人像时将显示器用作面部补光灯。通过可调节的亮度获得完美的照明效果。</p><p>在视频会议中白色屏幕也很有用。用作背景照明使您的面部看起来更好。在专业视频通话中,照明质量至关重要。</p>

Frequently Asked Questions – 白色

启用全屏白色并仔细检查屏幕。坏点在白色背景上显示为暗点。

长时间观看可能会造成疲劳。将屏幕亮度调整到适合环境照明的水平,并定期休息。

可以,您的显示器或平板电脑可以用作低级光源。适合摄影中的补光灯或黑暗中的轻度照明。

可以,白色可用于检查显示器的色彩平衡。如果纯白看起来偏黄或偏蓝,可能需要调整色温设置。

所有带浏览器的设备都支持:台式显示器、笔记本电脑、平板电脑和智能手机。