Snaplytics JS Tests

Pon a prueba tu monitor y ratón

Tests gratuitos e instantáneos en el navegador para tu hardware: mide los fotogramas por segundo, detecta la tasa de refresco de tu pantalla y mucho más. Nada que instalar, funciona por completo en tu navegador.

Pantalla y monitor

Test de FPS

Mide tus FPS en vivo

Mide cuántos fotogramas por segundo está renderizando realmente tu navegador en tiempo real, con un gráfico en vivo y una lectura de mínimo/medio/máximo.

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Test de Tasa de Refresco

Detecta los Hz de tu pantalla

Detecta la tasa de refresco real de tu monitor (60Hz, 120Hz, 144Hz, 240Hz…) directamente en el navegador usando el reloj de fotogramas de animación.

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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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Test de Píxeles Muertos

Encuentra píxeles muertos y atascados

Cubre tu pantalla con colores sólidos a pantalla completa para detectar píxeles muertos, atascados y calientes, además del sangrado de retroiluminación: recorre rojo, verde, azul, blanco, negro y más.

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Reparador de Píxeles Atascados

Revive píxeles atascados

Arrastra un parche de ruido de color parpadeando rápidamente sobre un píxel atascado para ejercitarlo y devolverlo a la vida: el método de reparación de píxeles en el navegador, sin necesidad de instalar nada.

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Test de Fugas de Luz

Comprueba las fugas de luz

Llena tu pantalla de negro puro para revelar el sangrado de retroiluminación, el brillo en las esquinas, el brillo IPS y el clouding en los bordes de un panel LCD. Mejor en una habitación oscura.

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¿Cuál Es el Tamaño de Mi Pantalla?

Tamaño y resolución de pantalla

Consulta al instante la resolución de tu pantalla, el viewport del navegador, el ratio de píxeles del dispositivo, la relación de aspecto y la profundidad de color, detectados en vivo. Además, mide el tamaño físico real de tu pantalla en pulgadas con una rápida calibración con una tarjeta 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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Ratón

Test de Tasa de Sondeo del Ratón

Comprueba los Hz de tu ratón

Prueba la tasa de sondeo de tu ratón en hercios —con qué frecuencia reporta su posición a tu ordenador— con un medidor en vivo que muestra tu tasa actual, máxima y promedio.

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Test de Ratón

Prueba botones y scroll

Comprueba que todos los botones y la rueda de desplazamiento de tu ratón funcionan. Haz clic con los botones izquierdo, derecho, central y laterales para verlos iluminarse en un diagrama del ratón, desplázate arriba y abajo para probar la rueda y detecta los dobles clics accidentales de un switch desgastado.

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Test de la Rueda de Desplazamiento del Ratón

Diagnostica el jitter de scroll

Diagnostica el jitter de la rueda de desplazamiento, el desplazamiento inverso y los saltos. Desplázate en una dirección durante una prueba cronometrada y obtén tu velocidad de scroll, los conteos de arriba/abajo, la detección de jitter inverso y un veredicto sobre la salud de la rueda.

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Test y Analizador de DPI del Ratón

Mide tu DPI real

Mide el DPI real de tu ratón en el navegador. Introduce tu DPI configurado y una distancia, desliza el ratón esa distancia a lo largo de una regla y obtén tu DPI real, el conteo de píxeles y la desviación respecto a lo que indica la caja.

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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 y escritura

Velocidad y reflejos