About MonitorTest
MonitorTest is an independently maintained web project that helps people check common display issues without installing an application.
Why the site exists
A new monitor can look fine on a desktop wallpaper while a dead pixel, dark-level clipping or distracting motion trail remains hidden. Our tools place simple colors, gradients and moving objects on the screen so those issues are easier to inspect. The tests run in the browser and do not require an uploaded photograph or access to your camera.
What the tools can and cannot tell you
MonitorTest is designed for visual checks and comparisons between settings. It can help you locate a fixed pixel defect, compare overdrive modes or notice obvious clipping. It cannot measure color error, luminance, pixel response time or total system latency with laboratory accuracy. Browser timing, operating-system settings, graphics output and the monitor itself all affect the result.
Practical tests
Each core guide leads to a test you can run and explains what to look for.
Visible limits
We distinguish a visual aid from a calibrated instrument instead of presenting an estimate as a measurement.
Independent content
Our guides are not paid product rankings and do not sell a preferred test result.
Corrections welcome
Readers can report unclear instructions, broken tools and technical errors through the contact page.
How content is maintained
Pages are published by the MonitorTest Editorial Team. We document repeatable test conditions in the methodology and explain research, automation and correction practices in the editorial policy. Software and AI tools may assist with drafting, language review or technical checks, but they are not used to invent hands-on testing or personal experience.
Contact
For a correction, accessibility issue, partnership question or technical report, use the contact page. Last reviewed: July 28, 2026.