
Scrimba
Data Protocol
GoIT LMS
Codelita
CodeCrafters
Codecademy
Divize
The most fun way to learn to code.

OLED Guard Pro
Black-Screen.cc
Screentest
Eyes Guard
Screen Tester
Screen Test Tool
WhiteScreen Fix Dead Pixel Test
Browser-based display tests for dead pixels, backlight bleed, burn-in, and other screen issues, with guided repair tools when fixes are possible.
Which is more popular?
Based on our record, Codédex seems to be more popular. It has been mentioned 5 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | codedex.io | screendetect.com |
| Pricing | ||
| Company | — | Startup from the United States · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Codédex yet.
ScreenDetect ScreenDetect is a browser based screen testing and display diagnostics tool that helps you find and troubleshoot common monitor and device screen problems. You can run a full set of visual tests directly in your browser to check for issues like dead pixels, stuck pixels, backlight...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of Codédex yet.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Codédex and ScreenDetect.
ScreenDetect's answer:
ScreenDetect is not just a fullscreen test page and not just a generic advice site. It combines browser-based screen checks with clear interpretation and next-step guidance. What really makes it different is the approach: ScreenDetect is careful about false positives, encourages retesting, and is upfront about what a browser test can and cannot prove.
ScreenDetect's answer:
Most alternatives either show a simple test pattern or push a "fix" without much context. ScreenDetect is a better choice for people who want a more grounded answer. It helps users separate issues like dead pixels vs. stuck pixels, backlight bleed vs. IPS glow, and image retention vs. burn-in, then points them toward the right next move instead of overstating what software can fix.
ScreenDetect's answer:
ScreenDetect is mainly for people who want a fast, credible way to check a screen problem without downloading software. That includes consumers testing a new monitor, laptop, phone, or TV during a return window, gamers and display enthusiasts checking panel quality, and IT or repair-minded users who want better evidence before they escalate to support, warranty, or replacement.
Share your experience with using Codédex and ScreenDetect. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


I'm a new coder too. What helps me is finding a good place to learn the most basic principles and having 2-5 things I want to do. I started with codedex.io , learning Python and HTML and then took their courses and moved on looking for... Source: over 3 years ago
I think you should focus on HTML, CSS, and JS, starting with HTML. I just started HTML on a website called codedex.io. Pretty cool so far but I feel like I'm getting into a brand new thing haha. Source: over 3 years ago
I've been learning Python on a website called codedex.io for about 6 months. It's been great for me so far. I just started on Classes and Objects. Give them a try, you might like them. Source: over 3 years ago
Tracking ScreenDetect since Mar 2026.
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Empowering emerging markets with high-quality tech education
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Program for testing the quality of CRT/LCD screens. It displays various patterns and allows you to estimate the quality of your CRT/LCD monitor.
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