Snaplytics JS Tests

Teste seu monitor e mouse

Testes gratuitos e instantâneos no navegador para seu hardware — meça a taxa de quadros, detecte a taxa de atualização da sua tela e muito mais. Nada para instalar, roda totalmente no seu navegador.

Tela e Monitor

Teste de FPS

Meça seu FPS ao vivo

Meça quantos quadros por segundo seu navegador está realmente renderizando em tempo real, com gráfico ao vivo e leitura de mín/méd/máx.

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Teste de Taxa de Atualização

Detecte os Hz da sua tela

Detecte a taxa de atualização real do seu monitor (60Hz, 120Hz, 144Hz, 240Hz…) direto no navegador usando o relógio de quadros de animação.

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Resolution Test

Check your native resolution

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.

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Monitor Ghosting Test

Reveal motion trailing

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.

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Frame Skipping Test

Detect dropped frames

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.

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Monitor Gamma Test

Check your display gamma

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.

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Display Test

Full-screen test patterns

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.

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Brightness Test

Calibrate your backlight

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.

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Contrast Test

Check highlight detail

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.

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Black Level Test

Check black & shadow detail

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.

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White Level Test

Peak white & highlights

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.

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Color Range Test

Color, gradients & banding

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.

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Screen Uniformity Test

Brightness & color evenness

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.

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Burn-in Test

Spot image retention

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.

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Teste de Pixels Mortos

Encontre pixels mortos e travados

Inunde sua tela com cores sólidas em tela cheia para identificar pixels mortos, travados e quentes, além de vazamento de luz de fundo — percorra vermelho, verde, azul, branco, preto e mais.

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Reparador de Pixels Travados

Reanime pixels travados

Arraste um patch de ruído colorido piscando rapidamente sobre um pixel travado para exercitá-lo de volta à vida — o método de reparo de pixels no navegador, sem instalação.

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Teste de Vazamento de Luz

Verifique vazamento de luz

Preencha sua tela com preto puro para revelar vazamento de luz de fundo, brilho nos cantos, IPS glow e clouding nas bordas de um painel LCD. Melhor em um quarto escuro.

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Qual é o Tamanho da Minha Tela?

Tamanho e resolução da tela

Veja instantaneamente sua resolução de tela, o viewport do navegador, a proporção de pixels do dispositivo, a proporção de tela e a profundidade de cor — detectados ao vivo. Além disso, meça o tamanho físico real da sua tela em polegadas com uma rápida calibração usando um cartão de crédito.

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Monitor Center Finder

Mark the exact center

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.

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Solid Color Screens

Full-screen any color

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.

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Viewport Sizer

Live browser viewport

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.

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Device Resolutions

Screen sizes reference

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.

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Aspect Ratio Calculator

Simplify & resize ratios

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.

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PPI Calculator

Pixel density & dot pitch

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

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Retina Display Calculator

Is it retina?

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.

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Viewing Distance Calculator

Optimal screen 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.

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Mouse

Teste de Polling Rate do Mouse

Verifique os Hz do seu mouse

Teste o polling rate do seu mouse em hertz — com que frequência ele reporta sua posição ao computador — com um medidor ao vivo mostrando sua taxa atual, máxima e média.

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Teste de Mouse

Teste botões e rolagem

Verifique se todos os botões e a roda de rolagem do seu mouse funcionam. Clique nos botões esquerdo, direito, do meio e laterais para vê-los acender em um diagrama do mouse, role para cima e para baixo para testar a roda e detecte cliques duplos acidentais de um interruptor gasto.

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Teste da Roda de Rolagem do Mouse

Diagnostique jitter de rolagem

Diagnostique jitter da roda de rolagem, rolagem inversa e saltos. Role em uma direção por uma sessão cronometrada e obtenha sua velocidade de rolagem, contagens para cima/baixo, detecção de jitter inverso e um veredicto de saúde da roda.

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Teste e Analisador de DPI do Mouse

Meça seu DPI real

Meça o DPI real do seu mouse no navegador. Insira seu DPI configurado e uma distância, deslize o mouse essa distância ao longo de uma régua e obtenha seu DPI real, a contagem de pixels e o desvio em relação ao que a caixa promete.

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Mouse Double Click Test

Catch double-click chatter

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.

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Mouse Accuracy Test

Test your aim precision

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

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Mouse Drag Test

Detect drag drops

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.

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Mouse Drift Test

Spot sensor drift

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.

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Mouse Latency Test

Measure click latency

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

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Mouse Speed Test

Speed & acceleration

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.

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Mouse Spin Test

Count your spins

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

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Mouse DPI Calculator

eDPI, cm/360 & sens

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

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eDPI Calculator

DPI × sensitivity

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

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Sensitivity Converter

Convert sens between games

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

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Teclado e Digitação

Velocidade e Reflexos