Screen Master - Dead Pixel Tester icon

Screen Master - Dead Pixel Tester

by Tong Gu La · screencheck.online · Tools
Manifest V3 Free
View in Chrome Web Store Data as of 20 Oct 2026

A simple screen tester for detecting dead pixels and display issues

Users
27
+8 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#137K
#114K among extensions
Version
1.0.0
updated 21 Feb 2026

Users

monthly, 8 months
01427Feb 2026Jul 2026Oct 2026
Latest, 20 Oct 2026: 27 usersMove the mouse over the chart for any month

Ratings count

monthly, 8 months
001Feb 2026Jul 2026Oct 2026
Latest, 20 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Screen Master - Dead Pixel Tester

itle: The Ultimate Screen Health Check & Dead Pixel Tester Did you just buy a new monitor? Don't let defects go unnoticed! Screen Master is a professional, lightweight tool designed to detect dead pixels, stuck pixels, and backlight bleeding on your LCD, LED, OLED, or 4K monitors instantly. Unlike simple color cyclers, Screen Master includes a Smart Analysis Engine that generates a professional quality report based on your findings, offering maintenance tips to keep your display in top condition. 🔥 Key Features: 🎨 Full-Spectrum Test Patterns: Cycle through Red, Green, Blue, White, and Black to spot dead/stuck pixels easily. 💡 Backlight Bleeding Test: Dedicated dark mode to check for IPS glow and panel leakage. 🤖 Smart Quality Report: Found an issue? Input your observations, and our engine will generate a professional assessment report with a health score. 🛡️ Maintenance Tips: Get expert advice on how to clean and protect your screen based on its condition. ⚡ Instant & Lightweight: No heavy installation, runs in full screen with a single click. 🔒 Privacy First: We do not collect any personal data. Everything runs locally in your browser. Who is this for? Gamers checking high-refresh-rate (144Hz/240Hz) monitors. Designers ensuring color accuracy and panel uniformity. Anyone who bought a second-hand laptop or display. How to use: Click the extension icon. Select "Auto Test" or "Manual Mode". Look for dots that don't change color (dead pixels). Generate your screen health report at the end! Keywords for search: dead pixel test, monitor calibration, screen tester, stuck pixel fixer, backlight bleed check, LCD test, OLED burn-in check, display diagnostic tool, 4K monitor test.

Growth

WindowUsersChangeRatingsRating
7 days+2+8.0%00.00
30 days+8+42.1%00.00
6 months+23+575.0%00.00

Chrome Web Store search rankings

Where Screen Master - Dead Pixel Tester appears when people search the store, with the 30 day change
Search phrasePosition30 days
second-hand#19+23

Version history

1 versions recorded
1.0.021 Feb 2026

Details

Category
Tools
First seen
21 Feb 2026
Size
20 KB
Languages
en-US
Pricing
Free
Privacy policy
screencheck.online
Extension ID
eliclbchlaphgnbhgceloldnjaiponbj

Permissions and risk

Minimal riskimpact 0, likelihood 2

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