Display Tools
Display Tools
Uniform fills, black/white ladders, gamma/ghosting/PWM labs, sharpness gratings, calculators (PPI/aspect/size/viewing distance), burn-in cycling, FPS and resolution diagnostics—all locally.
Screen TesterSolid colors, dot grid, and fullscreen fills for dead-pixel and uniformity checks.Use →Refresh Rate ProbeEstimate animation frame cadence versus display refresh timing in-browser.Use →Monitor Color TestSwatches plus grayscale ladders to judge tint and near-black clipping.Use →Backlight Bleed TestNear-black fullscreen ramps to visualize edge glow on IPS and edge-lit LCDs.Use →Touch Screen TestDraw tap markers inside the arena to sanity-check mapping across the panel.Use →PWM Flicker LabSimulated fullscreen brightness toggling across adjustable duty and frequency.Use →Monitor Gamma RampStriped ramps and stepped grays highlight nonlinear gamma and sharpening halos.Use →Monitor Ghosting TestWatch the moving box. If you see a trailing blur or color smear behind it, your monitor has ghosting (slow pixel response). Increase speed to expose ghosting more clearly.Use →Black Level TestFree online black level test. Check whether your monitor crushes shadow detail with 32 near-black patches. Detect incorrect black-level mapping and gamma issues.Use →White Level TestFree online white level test. Check whether your monitor clips highlights with 32 near-white patches. Detect crushed whites and incorrect contrast settings.Use →Brightness TestFree online monitor brightness test. Eleven grayscale steps from black to white reveal brightness, contrast, and gamma issues.Use →Contrast TestCheckerboard beside 50% gray—squint to see if averaged checker matches solid mid gray for contrast sanity.Use →PPI CalculatorPixels per inch, dot pitch, megapixels, and aspect ratio from resolution plus diagonal.Use →Aspect Ratio CalculatorSimplify pixel dimensions to ratios (for example 3840×2160 to 16:9).Use →Screen Size CalculatorConvert diagonal and aspect ratio into physical width and height in inches and centimeters.Use →Viewing Distance CalculatorRule-of-thumb seating distance from screen diagonal plus optional multiplier presets.Use →FPS TestMeasured animation FPS from requestAnimationFrame timing for qualitative render cadence.Use →Screen Resolution TestBrowser-reported viewport, screen geometry, pixel ratio, and color depth diagnostics.Use →OLED Burn-In TestCycle solid colors plus checker overlays fullscreen to spotlight uneven wear or risky static UI.Use →Color Range TestNear-black / near-white ladders and ramps to sniff limited HDMI (16–235) vs full RGB.Use →Screen Uniformity TestFullscreen reference fills across gray/black/white and primaries to inspect clouding and tint.Use →Frame Skipping TestSample animation-frame spacing and highlight intervals much longer than the median streak.Use →Monitor Sharpness TestLagom-inspired 1px stripes, grille patterns, and text blocks to gauge scaling and sharpening.Use →