Screen testing tools
Inspect motion, color, brightness, pixels, touch response, and device specifications with focused browser-based tests.
5% Gray Test for OLED Banding & Uniformity
Check OLED vertical banding and dark patches with a fullscreen 5% gray screen. Compare gray levels or download a test image for your TV, monitor, or phone.
Open toolPanel testsGray Uniformity Test for OLED TVs and Monitors
Compare fullscreen 5%, 20%, and 50% gray fields to check dirty screen effect, edge shading, and uneven tint on TVs and monitors.
Open toolPanel testsGray Banding Test for Gradients and OLED Panels
Compare smooth gray ramps, deliberate grayscale steps, and uniform fields to distinguish gradient posterization from fixed panel banding.
Open toolPanel testsNear-Black Grayscale Test for OLED Shadow Detail
Inspect RGB 0–16, 0–32, and 0–64 patches against black to check crushed shadows and distinguish faint near-black gray levels.
Open toolPanel testsGray Test Pattern Generator with Full HD and 4K PNGs
Create and download uniform gray screens, smooth grayscale gradients, or stepped charts in 1080p, 1440p, 4K, and portrait formats.
Open toolMotionGhosting Test
Track moving shapes, text, and fine lines at several speeds to reveal response trails, black smearing, and overdrive overshoot.
Open toolColor and toneHDR Test
Check browser HDR and wide-gamut signals, then inspect highlight roll-off, shadow detail, and high-contrast tone mapping.
Open toolDevice informationTouch Screen Test
Measure active touch points, draw continuous trails, and scan an edge-to-edge grid for inaccurate or unresponsive areas.
Open toolMotionScreen Tearing Test
Use fast stripes, layered blocks, and scrolling checks to expose frame splits and unstable synchronization.
Open toolPanel testsBlack Level Test
Compare pure black, near-black steps, and embedded dark patterns to inspect black depth, glow, and crushed detail.
Open toolPanel testsBacklight Bleed Test
Display black and low-gray fields in a dark room to distinguish edge bleed, clouding, IPS glow, and uneven backlighting.
Open toolColor and toneRGB Channel Test
Inspect red, green, and blue channels independently, verify additive mixing, and check each channel's gradient smoothness.
Open toolColor and tonesRGB Color Test
Review a standard color patch set, neutral grays, and skin-tone references for visible sRGB balance problems.
Open toolColor and toneDisplay P3 Test
Check P3 browser support and compare wide-gamut swatches, boundary gradients, and a saturated spectrum.
Open toolColor and toneColor Gamut Test
Compare sRGB and P3 references to spot clipping, muted wide-gamut colors, and uneven saturation steps.
Open toolColor and toneGradient Test
Inspect grayscale, RGB, and radial transitions for banding, abrupt tone jumps, and weak bit-depth handling.
Open toolColor and toneColor Banding Test
Use lossless channel and luminance gradients with adjustable steps to expose visible contour bands.
Open toolColor and toneColor Accuracy Test
Compare reference patches, neutral gray ramps, and saturation steps for obvious hue, balance, and clipping errors.
Open toolPanel testsBrightness Test
Adjust luminance patterns, inspect nine zones, and compare tone steps for range and uniformity problems.
Open toolPanel testsBlooming Test
Move bright objects and subtitle patterns over black to examine local-dimming halos and zone transitions.
Open toolPanel testsGamma Calibration
Use fusion stripes, gamma references, and extreme-tone patches to visually tune midtone response near gamma 2.2.
Open toolPanel testsFlicker Test
Show steady and striped brightness patterns that make PWM flicker easier to detect with a camera or peripheral vision.
Open toolColor and toneColor Depth Test
Examine dark gradients, near-color pairs, and temporal dithering patterns for clues about 6-, 8-, or 10-bit output.
Open toolCalculatorsScreen Size Calculator
Calculate physical width, height, area, aspect ratio, and pixel density from diagonal size and resolution.
Open toolCalculatorsAspect Ratio Calculator
Reduce any resolution to its display ratio and calculate a missing dimension from a target proportion.
Open toolCalculatorsPPI Calculator and Screen Comparison
Calculate pixels per inch, pixel pitch and physical screen dimensions, then compare two displays using their resolution and diagonal size.
Open toolColor and toneScreen Light for Video Calls
Turn a spare screen into adjustable webcam lighting with full, split and ring layouts, warm or cool tones, and reusable presets.
Open toolPanel testsDead Pixel Test
Cycle full-screen colors and custom fields to find stuck, dead, bright, or dim pixels across the panel.
Open toolPanel testsBurn-In Test
Run solid colors, moving bars, checkerboards, and gradient sweeps to reveal image retention or uneven pixel aging.
Open toolPanel testsGreyscale Test
Adjust 4 to 64 gray levels and inspect full-range blocks, shadow detail, highlights, and uniformity.
Open toolDevice informationResolution Checker
Read viewport size, screen pixels, device pixel ratio, color depth, orientation, and measured browser refresh rate.
Open toolMotionRefresh Rate Test
Measure real-time frame cadence and watch synchronized motion with frame-time history and long-frame counts.
Open toolColor and toneMonitor Color Test
Show standard and custom full-screen colors to inspect tint, uniformity, saturation, and sub-pixel behavior.
Open toolColor and toneMonitor Color Calibration
Use white-temperature, color-checker, and skin-tone references as a visual starting point for display calibration.
Open toolPanel testsContrast Test
Inspect near-black and near-white steps plus alternating patterns for crushed shadows, clipped highlights, and contrast limits.
Open toolSolid color screensWhite Screen
A brightness-adjustable white field for dark-spot checks, cleaning, tracing, and neutral illumination.
#FFFFFFOpen toolSolid color screensBlack Screen
A full black field for glow, light bleed, OLED black uniformity, reflections, and distraction-free viewing.
#000000Open toolSolid color screensRed Screen
A full red field for red sub-pixel inspection, tint uniformity, night adaptation, and ambient light.
#FF0000Open toolSolid color screensGreen Screen
A full green field for green sub-pixel checks, chroma-key work, and color uniformity inspection.
#00FF00Open toolSolid color screensBlue Screen
A full blue field for blue sub-pixel checks, filter comparison, and cool ambient illumination.
#0000FFOpen toolSolid color screensYellow Screen
A full yellow field for red-green mixing checks, warm illumination, and uniformity inspection.
#FFFF00Open toolSolid color screensOrange Screen
A full orange field for warm ambient light, night viewing, and intermediate-color uniformity checks.
#FF8C00Open toolSolid color screensPink Screen
A full pink field for soft ambient lighting and red-blue channel blending checks.
#FF69B4Open toolSolid color screensPurple Screen
A full purple field for red-blue sub-pixel blending, tint shifts, and ambient display use.
#8B00FFOpen toolSolid color screensGray Screen
An adjustable neutral gray field for burn-in, dirty-screen effect, backlight uniformity, and tint checks.
#808080Open toolDevice guidesLaptop Screen Test
An eight-step laptop display inspection covering resolution, pixels, bleed, grayscale, gradients, color, motion, and touch.
Open toolDevice guidesMobile Screen Test
An eight-step phone and tablet inspection for pixels, touch, burn-in, brightness, flicker, tone, and color.
Open toolDevice guidesTV Screen Test
An eight-step television workflow covering pixels, black level, backlight, blooming, burn-in, HDR, color, and motion.
Open toolDevice guidesMonitor Screen Test
Run a guided monitor inspection for pixel defects, backlight bleed, gray uniformity and tonal detail. Record your own observations and download a checklist.
Open toolDevice guidesOLED Screen Test
An OLED-focused workflow for burn-in, true black, low-gray uniformity, ABL behavior, flicker, color, and HDR.
Open toolDevice guidesLCD Screen Test
An LCD-focused workflow for pixels, bleed, glow, black depth, banding, ghosting, color, and luminance uniformity.
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