Detect your display resolution, pixel ratio and viewport instantly.
Run every display check in one guided sequence and get a summary.
Work out your physical screen size in inches from its resolution and DPI.
A calibrated ruler in actual size — cm, mm, inches or pixels.
Live frame rate, 1% lows and stutter, with a frame-time graph.
Measure the true refresh rate of your display in Hz, live.
Fullscreen solid colours that expose dead, stuck and hot pixels.
Check colour accuracy, gradients, banding and panel uniformity.
Work out and resize any aspect ratio, with a live to-scale preview.
Check OLED and LCD panels for image retention, and try to clear it.
Find dead zones and check multi-touch by drawing on the screen.
Find light leaking around the edges of an LCD panel.
Check motion blur, trailing and pixel response with moving objects.
Put two displays side by side, drawn to true scale.
