About ScreenVitals – Free Browser Screen Tests
Screen problems are visual, but the advice around them is often vague. ScreenVitals turns common display symptoms into controlled checks, clear observations, and sensible next steps.
What we are building
ScreenVitals is a free collection of browser-based display tools for monitors, laptops, phones, tablets, and TVs. The tools use full-screen colors, grayscale, gradients, grids, and motion patterns to make defects easier to inspect. The optional photo analyzer evaluates relative brightness variation locally in the browser.
Our principles
Useful before clever
Every tool should answer a real question quickly and explain what the result means.
Private by design
Core tests require no account. Photo analysis happens on the device rather than an upload server.
No false certainty
Visual checks are not laboratory instruments. We state limitations and avoid fake precision.
Evidence over alarm
We help users repeat, compare, and document a finding before making a return or repair decision.
How ScreenVitals is funded
ScreenVitals is designed to remain free. The site may use clearly identified advertising and, in future, relevant affiliate links. Commercial relationships do not change how tests work or how display issues are explained. We do not sell a “better score.”
Contact
Questions, corrections, accessibility feedback, and business inquiries can be sent through the details on our contact page.