Check a screen in about five minutes.
Run four short checks, tell us what you see, and get a clear summary for buying, selling, troubleshooting, or warranty evidence.
First, tell us what you are checking.
What is this check for?
Two quick choices help us give you the right next step.
Look for bad pixels
Open the color test. Scan slowly from corner to corner, then choose the answer that best matches what you saw.
Dead and stuck pixel test
White, black, red, green, and blue patterns.
Test closed. Choose what you saw above.
Check dark areas and evenness
Look for fixed bright corners, faint shadows, darker bands, or cloudy patches. Judge it from your normal viewing position.
Dark and gray pattern check
Black, near-black, gray, and white patterns.
Test closed. Choose what you saw above.
Analyze a matching evidence photo → It opens in a new tab and stays local.
Check refresh timing and motion
Tell us the screen's expected rate, measure browser timing, then follow the moving target with your eyes.
Not sure? Leave “Don't know.” The report will show the measurement without calling it a pass.
Add optional evidence
Photos and a short note make the report more useful. You can skip this step.
60-second buyer checklist
Optional, but useful before money changes hands.
Result ready
Pixel check
Dark areas and uniformity
Motion check
Browser refresh timing
Browser estimateWhat to do next
60-second buyer checklist
Your observation
Evidence photos
Photos were added locally and were not uploaded to ScreenVitals.
A decision aid—not a made-up health percentage.
The check combines controlled patterns, your own observations, and a browser timing estimate. It tells you what looked clear, what deserves another look, and which focused test to run next.
- Clear language instead of display jargon
- No automatic “pass” based on an unvalidated score
- Separate results for pixels, uniformity, and motion
- Practical next steps for buying or warranty evidence
Possible issue found
One clear concern is more useful than a vague 74% “health” score.
What this check really tells you.
Does this give my monitor a scientific health score?
No. The result summarizes the checks you completed, what you reported seeing, and the browser refresh-timing estimate. It never claims that a screen is a certain percentage healthy.
Can I use this before buying a used monitor?
Yes. Run it with the seller present, use the screen’s native resolution, test the inputs you need, and save the result. The check reduces uncertainty but cannot guarantee future reliability or replace a return policy.
Are my photos uploaded?
No. Optional evidence photos stay in the current browser tab. They are shown locally in the printable report and are not sent to ScreenVitals.
What if I do not know whether the screen is OLED or LCD?
Choose “Not sure.” The guided check uses patterns that are useful on both. The result will avoid panel-specific conclusions.
Does a clear result prove the screen is defect-free?
No. It means you did not report an obvious issue in the checks you completed. Intermittent faults, ports, internal electronics, color accuracy, and long-term reliability may require additional testing.