Screen tests

No sign-up, no download. Nothing you test is sent anywhere.

Live

Dead & stuck pixel test

Full-screen colours with keyboard and tap controls, plus a stuck-pixel fixer. Monitors, laptops, phones and TVs.

Run test

Coming soon

Backlight bleed

Dark-room check for glow and IPS glow.

Coming soon

Refresh & ghosting

Until then: ghosting guide.

Coming soon

Colour & uniformity

Until then: calibration guide.

Coming soon

Flicker check

Until then: flicker fixes.

Your screen, right now

Measured by your browser. Nothing is sent anywhere.

—Screen resolution

—Pixel ratio

…Refresh (est.)

—Colour gamut

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