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No app installation. Interactions and calculations run locally.
About ScreenTestOK
Browser-based screen observation tools with a clear sequence for every check.
Check your screen.
Start with clear patterns.
We bring solid colors, grayscale, dark scenes and motion patterns together, with check sequences for different devices. Open a page and choose a suitable tool.
View all toolsClear information sources
Browser reports, calculated values and visual references are labeled separately.
Clear limits
No registration or uploads, and no promises of automatic diagnosis or repair.
Start with your goal
Check defects that remain in the same screen position first, then colors and motion. Use patterns, sampling and calculators to work through your device checks.