Best Dead Pixel Test Tools Compared (2026)
Side-by-side comparison of 12 dead pixel testing tools: online browsers, Windows software, and mobile apps. See which tool fits your needs — quick check, pixel repair, or professional testing.
Quick Comparison Table
| Tool | Platform | Price | Colors | Fix Mode | Download | Offline | Updated | Rating |
|---|---|---|---|---|---|---|---|---|
| Dead Pixel Test (This Site) | Online | Free | 5+ | ✓ | No | No | 2026 | ⭐⭐⭐⭐⭐ |
| JScreenFix ↗ | Online | Free | 1 (noise) | ✓ | No | No | 2024 | ⭐⭐⭐⭐ |
| EIZO Monitor Test ↗ | Online | Free | 10+ | ✗ | No | No | 2024 | ⭐⭐⭐⭐ |
| Devina.io ↗ | Online | Free | 5 | ✓ | No | No | 2024 | ⭐⭐⭐⭐ |
| Display Tech ↗ | Online | Free | 5 | ✗ | No | No | 2019 | ⭐⭐⭐ |
| IsMyLcdOK ↗ | Windows | Free | 8+ | ✓ | Yes | Yes | 2024 | ⭐⭐⭐⭐ |
| Dead Pixel Tester (DPS) ↗ | Windows | Free | 5+ | ✗ | Yes | Yes | 2011 | ⭐⭐ |
| InjuredPixels ↗ | Windows | Free | 5 | ✗ | Yes | Yes | 2017 | ⭐⭐⭐ |
| Pixel Doctor ↗ | Windows | Free | 5+ | ✓ | Yes | Yes | 2014 | ⭐⭐ |
| Dead Pixels Test & Fix ↗ | Android | Free | 6+ | ✓ | Yes | Yes | 2024 | ⭐⭐⭐⭐ |
| Screen Check ↗ | Android | Free | 9 | ✗ | Yes | Yes | 2023 | ⭐⭐⭐⭐ |
| YouTube Test Videos ↗ | Any | Free | 5+ | ✗ | No | No | 2025 | ⭐⭐⭐ |
Quick Recommendations
Best Online Tool
Our Dead Pixel Test — instant access, multiple test modes, no download.
Best for Pixel Repair
JScreenFix — focused on unsticking pixels with noise pattern.
Best Windows Software
IsMyLcdOK — portable, free, multiple test patterns.
Disclosure: This page compares real dead pixel testing tools objectively. We include our own tool but rate competitors fairly. Links to external sites open in new tabs. We are not affiliated with any tool listed except our own.
Detailed Tool Reviews
Online Browser-Based Tools
These tools run in your browser. No download required, works on any device.
JScreenFix ↗
Browser-based stuck pixel repair tool with noise pattern
Pros
- + Free and no download
- + Focuses on fixing stuck pixels
- + Simple drag-and-drop interface
- + Works on any device with browser
- + High-frequency pattern may unstick pixels
Cons
- − Only one test pattern (noise)
- − No dead pixel detection mode
- − Must run 10+ minutes for results
- − Can't pause or customize colors
- − Outdated website design
- − No mobile-optimized interface
Best for: Attempting to fix stuck pixels
EIZO Monitor Test ↗
Professional-grade monitor testing from display manufacturer EIZO
Pros
- + Professional quality test patterns
- + Multiple test modes (grayscale, gamma, etc.)
- + Trusted brand reputation
- + Clean, modern interface
- + Tests more than just dead pixels
Cons
- − Requires navigating multiple pages
- − Not optimized for quick dead pixel check
- − Some tests require registration
- − Complex for casual users
- − No stuck pixel fix mode
Best for: Professional monitor calibration
Devina.io Dead Pixel Tester ↗
Online dead pixel tester with noise repair feature
Pros
- + Clean, modern interface
- + 5 solid colors + noise pattern
- + Includes stuck pixel repair mode
- + Keyboard shortcuts for navigation
- + Works on any device
Cons
- − Limited to 5 colors
- − Noise circle for repair can be tricky
- − No grayscale or gradient tests
- − No mobile app version
- − Less comprehensive than other options
Best for: Quick dead pixel check with repair attempt
Display Tech Dead Pixel Check ↗
Technical dead pixel test with detailed explanations
Pros
- + Technical explanations of pixel types
- + Simple solid color tests
- + No ads or clutter
- + Available in multiple languages
Cons
- − Basic interface with no frills
- − Limited color options
- − No stuck pixel repair
- − No fullscreen button (must use F11)
- − Dated design
Best for: Understanding pixel defect types
Windows Desktop Software
Downloadable tools for Windows. Good for offline testing or extended pixel fixing sessions.
IsMyLcdOK ↗
Free Windows portable tool for LCD testing
Pros
- + Completely free, no ads
- + Portable — no installation needed
- + 8+ test patterns including gradients
- + Very lightweight (under 100KB)
- + Works offline
- + Has stuck pixel flasher mode
Cons
- − Windows only
- − Dated interface
- − Must download executable
- − Requires navigating DOS-style menu
- − No automatic cycling
Best for: Offline Windows testing
Dead Pixel Tester (DPS) ↗
Classic Windows dead pixel testing software
Pros
- + Free for personal use
- + Multiple test patterns
- + Color cycling feature
- + Works on old Windows versions
Cons
- − Windows only
- − Very dated UI (last updated 2011)
- − Must download and install
- − Website looks abandoned
- − No mobile version
Best for: Legacy Windows systems
InjuredPixels ↗
Free Windows app for dead pixel detection
Pros
- + Clean, simple interface
- + Free without ads
- + Fullscreen testing
- + Portable version available
Cons
- − Windows only
- − Fewer test patterns than competitors
- − No stuck pixel repair
- − Must download
- − No automatic color cycling
Best for: Simple Windows dead pixel check
Pixel Doctor ↗
Windows tool for finding and fixing stuck pixels
Pros
- + Includes pixel fix mode
- + Shows pixel location on screen
- + Free to use
Cons
- − Windows only
- − Installation required
- − Old, unmaintained software
- − Limited documentation
- − May not work on Windows 10/11
Best for: Attempting stuck pixel repair on Windows
Mobile Apps (Android)
Native Android apps for phone and tablet testing. iPhone users should use browser-based tools.
Dead Pixels Test and Fix ↗
Android app to detect and attempt to fix dead/stuck pixels
Pros
- + Free with 5M+ downloads
- + Includes stuck pixel repair mode
- + Works on burn-in too
- + Simple color cycling interface
- + Good ratings (4.4 stars)
Cons
- − Contains ads
- − Android only
- − Repair success is not guaranteed
- − Must install from Play Store
- − No iOS version
Best for: Android phone/tablet pixel issues
Screen Check: Dead Pixels Test ↗
Android app for comprehensive screen testing
Pros
- + 9 test colors
- + Fullscreen testing
- + No ads (reportedly)
- + Simple swipe/tap interface
- + 500K+ downloads, 4.5 stars
Cons
- − Android only
- − Basic functionality only
- − No stuck pixel fix mode
- − Requires installation
- − Limited features
Best for: Quick Android screen check
YouTube Test Videos
Dead Pixel Test Videos (YouTube) ↗
Video-based dead pixel tests on YouTube
Pros
- + Works on any device with YouTube
- + Easy to use on smart TVs
- + No software needed
- + Free access
Cons
- − Video compression reduces color accuracy
- − Can't pause easily during cycling
- − Not ideal for detailed inspection
- − Ads may interrupt testing
- − Hard to navigate back to specific colors
Best for: Quick TV testing
Important: Pixel Fixing Limitations
Many tools claim to "fix" dead pixels. Here's the truth:
Stuck Pixels (Colored Dots)
May respond to rapid color cycling. Success rate: 30-60%. Tools like JScreenFix or Dead Pixels Test and Fix are worth trying.
Dead Pixels (Black Dots)
Cannot be fixed by software. Dead pixels are hardware failures. No tool will repair them. If within return window, return the device. Otherwise, warranty replacement is your only option.
Frequently Asked Questions
What is the best dead pixel test tool?+
For most users, online browser-based tools offer the best balance: instant access, no installation, and accurate results. JScreenFix and our Dead Pixel Test are excellent free options. For offline testing or pixel fixing, downloadable software like IsMyLcdOK or Dead Pixel Tester may be useful.
Are online dead pixel tests safe?+
Yes. Legitimate online dead pixel tests run entirely in your browser and display solid colors. They don't download anything, don't collect data, and can't damage your screen. Our tests and JScreenFix are completely safe browser-based tools.
Do pixel fixing tools actually work?+
Pixel fixing tools have a 30-60% success rate for stuck pixels (colored dots) and 0% for dead pixels (black dots). Dead pixels are hardware failures and cannot be fixed by software. If your screen has dead pixels, return it or use warranty replacement.
Should I download software or use online tools?+
Use online tools for convenience: instant testing, no installation, works on any device. Use downloadable software if you need offline testing, automatic pixel cycling for hours, or specialized test patterns. For quick checks, online tools are superior.
What is the difference between JScreenFix and this site?+
JScreenFix focuses on stuck pixel repair with a noise pattern that runs for 10+ minutes. Our site focuses on detection with multiple test modes (dead pixel, stuck pixel, LCD, backlight bleed). For repair, JScreenFix is worth trying. For comprehensive detection, our tools offer more options.
Can I test my phone or tablet for dead pixels?+
Yes. Online tools work on phones and tablets in the browser. For Android, dedicated apps like "Dead Pixels Test and Fix" or "Screen Check" offer full-screen testing without browser UI. iPhone users should use browser-based tools.
Try Our Dead Pixel Test
Free, instant, no download required. Multiple test modes for comprehensive screen checking.