DisplayCheck
Run free browser-based screen and monitor tests for dead pixels, OLED burn-in, color handling…
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DisplayCheck provides free browser-based visual tests for dead pixels, OLED burn-in, color gradients, refresh rate and ghosting.
- for
- Anyone who wants to quickly inspect a monitor, laptop, tablet or other screen without installing software.
- pricing
- free
Key features
- Dead pixel test — Shows fullscreen solid colors to reveal stuck, dead or bright pixels.
- OLED burn-in check — Displays patterns to spot image retention, tinting and near-black uniformity on OLED panels.
- Gradient inspection — Shows grayscale and color gradients to detect banding, clipping and color shifts.
- Refresh cadence estimate — Estimates browser animation cadence and frame-time stability for refresh rate insight.
- Ghosting visualizer — Shows motion trails to help identify ghosting, dark smearing and overdrive halos.
- Uniformity view — Displays solid fields to reveal uneven brightness, tint and edge variation.
Use cases
- Verify a new monitor for dead or stuck pixels before use
- Check OLED laptop screen for early burn-in after prolonged static content
- Assess color banding on a calibrated monitor using gradient tests
- Measure perceived refresh smoothness when tweaking browser or OS settings
- Identify ghosting artifacts after changing response-time presets
DisplayCheck FAQ
Do I need to download anything to run the tests?+
No, all tests run directly in a modern desktop browser with no installation required.
Can DisplayCheck measure actual panel refresh rate?+
It estimates the browser’s animation cadence, which may differ from the physical panel’s refresh rate.
Is the tool able to provide objective color accuracy or contrast ratios?+
No, it only offers visual checks; objective measurements require dedicated instruments.
Do I need an account to use DisplayCheck?+
No account is required for any of the core tests.
What browsers are supported?+
Any modern desktop browser that supports fullscreen and CSS color/gradient features.
Summarized by DevHunt from displaycheck.cc · Oct 20, 2026. Details may change; check the official site.
