测试你的显示器与鼠标

实时测量你的浏览器实际渲染的每秒帧数，提供实时图表和最小/平均/最大读数。

直接在浏览器中使用动画帧时钟检测显示器的真实刷新率（60Hz、120Hz、144Hz、240Hz……）。

Detect your display's native resolution, pixel ratio, aspect ratio, and color depth, then run a fullscreen 1-pixel test pattern to spot scaling, blur, and non-native output.

Test your monitor for ghosting, inverse ghosting, and motion blur. Follow the moving object with your eyes to reveal trailing and coronas, with an adjustable speed and background.

Detect dropped or skipped frames on your monitor. The test times every animation frame, measures your true refresh rate, and flags each missed frame live with a running skip count.

Check your monitor's gamma with a visual calibration chart. Match the gray squares to read your display gamma, confirm the sRGB 2.2 target, and spot banding or black crush.

Step through full-screen solid colors, grayscale ramps, color bars, sharpness, geometry, and contrast patterns to check your monitor for dead pixels, banding, uniformity, and more.

Set and check your monitor's brightness with a full-screen shadow-detail test, luminance gradient, grayscale bar, and solid fields — dial in the black level and backlight.

Set and check your monitor's contrast with a full-screen highlight-detail pattern, a black-to-white gradient, and a dynamic-range check — dial in the white level without clipping.

Reveal raised or crushed blacks with full-screen pure-black, near-black step, and gradient patterns — check your monitor's black level and shadow detail in a dark room.

Check your monitor's white level, peak white, and highlight detail with full-screen white, near-white step, and grey-to-white gradient patterns that reveal tint and clipping.

Cycle per-channel gradients, a hue sweep, grayscale, and solid color fields in full screen to spot color banding, color cast, and your monitor's true bit depth.

Fill the screen with grey, white, and RGB fields to reveal clouding, mura, tint shifts, and dim edges — check your monitor's brightness and color uniformity corner to corner.

Test an OLED, AMOLED, or LCD screen for burn-in and image retention with full-screen solid colors, then run a pixel refresher to help reduce temporary retention.

用全屏纯色铺满屏幕，找出坏点、亮点、热点像素以及背光漏光——循环切换红、绿、蓝、白、黑等颜色。

在卡死像素上拖动一块快速闪烁的彩色噪点，刺激它恢复工作——基于浏览器的像素修复方法，无需安装。

用纯黑填满屏幕，揭示 LCD 面板边缘的背光漏光、四角发亮、IPS 辉光和云斑。在暗室中效果最佳。

即时查看你的屏幕分辨率、浏览器视口、设备像素比、宽高比和色彩深度——实时检测。还可通过简单的信用卡校准，测量屏幕以英寸计的真实物理尺寸。

Mark the exact center of your screen with a full-screen crosshair, center lines, corner-to-corner diagonals, and a rule-of-thirds grid — for webcam alignment, mounting, and crosshair reference.

Fill your whole screen with any solid color — presets or a custom hex — for spotting dead and stuck pixels, checking backlight bleed, screen cleaning, bias lighting, and photo backgrounds.

See your browser's live viewport size in CSS pixels, plus device pixel ratio, orientation, and the active responsive breakpoint — resize and watch it update, with a draggable test panel.

A searchable reference of screen sizes for popular phones, tablets, laptops, and monitors — CSS viewport, physical resolution, device pixel ratio, and aspect ratio, with your device highlighted.

Calculate the aspect ratio from any width and height, or lock a ratio like 16:9, 4:3, or 21:9 and solve the missing dimension, with a live preview.

Calculate pixel density (PPI), dot pitch, aspect ratio, and physical screen size from your resolution and diagonal, with presets for common displays.

Find out whether a display is 'retina' for a given size, resolution, and viewing distance — the pixels per degree your eye can resolve, plus the PPI needed at your distance.

Find the ideal viewing distance for your screen size and resolution — where you stop seeing pixels and get full detail, with a recommended range and field of view.

以赫兹为单位测试鼠标的回报率——即它向计算机报告位置的频率——通过实时计量仪显示当前、峰值和平均值。

检查鼠标上每个按键和滚轮是否正常。点击左键、右键、中键和侧键，看它们在鼠标示意图上亮起，上下滚动测试滚轮，并捕捉因开关磨损导致的双击误触。

诊断滚轮抖动、反向滚动和跳格。朝一个方向进行限时滚动，获取你的滚动速度、上/下计数、反向抖动检测和滚轮健康评定。

在浏览器中测量鼠标的真实 DPI。输入你设置的 DPI 和一段距离，沿标尺把鼠标移动相应距离，即可得到你的真实 DPI、像素计数以及与标称值的偏差。

Test your mouse for double-click misfires from a worn switch — click and see the interval between clicks, with unintended double-clicks flagged and counted.

Test your mouse aim and precision — click targets as they appear and get your accuracy, hits, misses, and reaction time.

Test your mouse for drag interruptions — hold and drag across the pad and catch any button drops mid-drag from a failing switch, with the drag path drawn live.

Check your mouse for sensor drift and jitter — hold the mouse still and see whether the pointer reports movement it shouldn't, with any stray motion measured.

Measure your mouse and system input latency — react to an on-screen change and see the delay in milliseconds, averaged over several tries.

Measure your pointer speed and detect mouse acceleration — move the mouse and see whether the same physical motion travels different on-screen distances at different speeds.

Spin your mouse in circles and count full rotations and spin speed — the mouse spinner challenge, measured live.

Work out your effective sensitivity from your mouse DPI and in-game sensitivity — eDPI and cm/360 for consistent aim across setups.

Calculate your eDPI (effective DPI) from your mouse DPI and in-game sensitivity, and compare it across games and pro players.

Convert your mouse sensitivity between games — keep the same cm/360 from CS to Valorant, Apex, Fortnite, and more, using your DPI.

以每秒按键次数（KPS）测量你的键盘速度。在计时结束前尽快按下任意键——也可当作空格键计数器，提供实时 KPS、排名和随时间变化的图表。可选 1、5、10、30、60 或 100 秒。

测试你以每分钟字数（WPM）计的打字速度和准确率。在计时结束前尽快键入文段，提供实时 WPM、准确率、排名和速度随时间变化的图表。可选 15、30、60 或 120 秒。

看看你以每秒点击次数（CPS）计能敲多少下空格键——空格键挑战。在计时结束前尽快敲击空格，提供实时 CPS、排名、按键计数器和随时间变化的图表。可选 1 到 100 秒。

按下每个键，看它在完整的虚拟键盘上亮起。找出失灵、卡键和连击的按键，检查按键鬼影和按键无冲，并查看每个键的键码——支持 Windows 和 Mac 布局。

通过简单的变色点击测试，测量显示器、输入设备和你反应时间的综合延迟。

以每秒点击次数（CPS）测量你的点击速度。在计时结束前尽快点击——可选 1、5、10、30、60 或 100 秒，包括 Kohi 10 秒测试。

以每秒点击次数（CPS）测量你右键点击的速度。与 CPS 测试相同的计时方式，但只统计鼠标右键点击——可选 1 到 100 秒。

通过反应方格测量你的每分钟操作次数——每个方块一亮起就立即点击。这是衡量机械操作速度的 RTS 基准测试，提供实时、峰值和平均 APM 以及 3×3、4×4 和 5×5 方格下的准确率。

以毫秒为单位测量你的反应有多快。等屏幕变绿后尽快点击——取五次尝试的平均值，显示最近一次、平均和最佳成绩，并与人类平均水平进行排名对比。