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MonitorTester

Free online screen test for dead pixels, bleed and burn-in

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MonitorTester is a free online screen test that runs entirely in your browser. Display diagnostic patterns — solid RGB/CMYK colors, grayscale ramps, gradients, color bars and motion tests — to spot dead pixels, backlight bleed, color tint, banding, ghosting and burn-in. No install or account needed; works on any monitor, laptop, TV, tablet or phone. Perfect for buying/returning displays, checking used monitors, or calibrating multi-screen setups.

PH · launched Sep 12, 2026 · 1 upvote (top 69%) · 2 views

Niche: desktop and display utilities · 171 launches, 6 in the last 7 days ▼ -75% · Explore this niche →

Category and tags

  • Horizontal
  • Dev tools
  • B2C
  • Not AI
  • Commercial product
  • Developer Tools

Visit website ↗ Source listing ↗

Could you build this?

Yes This is a simple client-side browser utility that displays full-screen canvas/CSS color patterns, grayscale ramps, and basic animations using standard Web APIs.

Competitors

Other products that read as similar to this one : 222 launches clear the similarity bar, closest 8 shown.

Attention rank: #171 of 223 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 287 days after the earliest competitor.

The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.