測試你的螢幕與滑鼠

即時測量你的瀏覽器實際每秒渲染多少幀，並提供即時圖表與最小／平均／最大數值。

直接在瀏覽器中，利用動畫幀時鐘偵測螢幕真實的更新率（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.

以全螢幕純色填滿畫面，找出壞點、卡點、亮點以及背光漏光 — 可循環顯示紅、綠、藍、白、黑等顏色。

將一塊快速閃爍的彩色雜訊拖曳到卡點上，反覆刺激讓它恢復正常 — 基於瀏覽器的像素修復方法，無需安裝。

以純黑填滿畫面，揭露 LCD 面板邊緣的背光漏光、角落發光、IPS 泛光與雲狀斑塊。建議在暗室中進行。

即時查看你的螢幕解析度、瀏覽器可視區域、裝置像素比、長寬比與色彩深度 — 全部即時偵測。還能透過快速的信用卡校準，以英吋測量螢幕真實的實體尺寸。

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.

以赫茲測試滑鼠的回報率 — 也就是它向電腦回報位置的頻率 — 並以即時計量顯示當前、峰值與平均回報率。

檢查滑鼠上每個按鍵與滾輪是否正常運作。點擊左鍵、右鍵、中鍵與側鍵，看它們在滑鼠示意圖上亮起，上下滾動測試滾輪，並抓出開關磨損造成的雙擊誤觸。

診斷滾輪抖動、反向滾動與跳格。朝同一方向計時滾動一輪，取得你的滾動速度、上／下計數、反向抖動偵測，以及滾輪健康判定。

在瀏覽器中測量滑鼠的真實 DPI。輸入你設定的 DPI 與一段距離，沿著尺規滑動滑鼠相同距離，即可得到真實 DPI、像素數值，以及與包裝標示的偏差。

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.

以每秒按鍵次數（KPS）測量你的鍵盤速度。在計時結束前盡快按下任意鍵 — 也可當作空格鍵計數器，提供即時 KPS、排名與時間分布圖。可選 1、5、10、30、60 或 100 秒。

測試你每分鐘字數（WPM）的打字速度與準確率。在計時結束前盡快打完文章，提供即時 WPM、準確率、排名與速度時間分布圖。可選 15、30、60 或 120 秒。

看看你每秒能按下空格鍵幾次（CPS）— 空格鍵挑戰。在計時結束前盡快敲擊空格鍵，提供即時 CPS、排名、按鍵計數與時間分布圖。可選 1 到 100 秒。

按下每個鍵，看它在完整虛擬鍵盤上亮起。找出無效鍵、卡鍵與抖動鍵，檢查鬼鍵與按鍵無衝突，並查看每個鍵的代碼 — 支援 Windows 與 Mac 配置。

透過簡單的「變色後點擊」測試，測量顯示器、輸入裝置與反應時間的綜合延遲。

以每秒點擊次數（CPS）測量你的點擊速度。在計時結束前盡快點擊 — 可選 1、5、10、30、60 或 100 秒，包含 Kohi 10 秒測試。

以每秒點擊次數（CPS）測量你右鍵點擊的速度。與 CPS 測試相同的計時測試，但只計算滑鼠右鍵點擊 — 可選 1 到 100 秒。

透過反應網格測量你的每分鐘操作數 — 每個方塊亮起的瞬間立刻點擊。衡量機械速度的 RTS 標準基準，提供即時、峰值與平均 APM，以及 3×3、4×4、5×5 網格的準確率。

以毫秒測量你的反射神經有多快。等待畫面變綠後盡快點擊 — 取五次嘗試的平均值，提供最近一次、平均與最佳成績，並與人類平均值比較排名。