
Scrimba
Codédex
CodeCrafters
Data Protocol
Codelita
Eloquent JavaScript
The State of JavaScript 2018
A free resource for learning and developing in JavaScript

Coblis
Ishihara Test
Sim Daltonism
ColorBlind-Test.io
Color Oracle
ColorBlindTest.us
Accessibility Checker Pro
Free color accessibility toolkit with color blindness simulators, WCAG contrast checker, and accessible palette generator for designers and developers.
Which is more popular?
Based on our record, JavaScript.com seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | javascript.com | rgblind.com |
| Pricing | — | |
| Platforms | — | |
| Company | — | Startup from Morocco · 1 - 9 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of JavaScript.com yet.
RGBlind is a comprehensive, free web-based accessibility platform that helps designers, developers, and educators create inclusive digital experiences for people with color vision deficiencies. With over 300 million people worldwide affected by color blindness, RGBlind provides scientifically...
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 JavaScript.com 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 JavaScript.com and RGBlind.com.
RGBlind.com's answer:
RGBlind.com is a fully browser-based color blindness simulator and testing platform that allows users to instantly preview how images, websites, and designs appear to people with different types of color vision deficiency. It includes advanced features like daltonization (color correction), split-view comparison, grid overlays, and real-time camera input, all processed locally in the browser for privacy.
RGBlind.com's answer:
Unlike generic simulators or apps requiring downloads, RGBlind.com offers a complete, fast, and easy-to-use solution directly in the browser. It provides both adult and child-friendly color vision tests, supports multiple CVD types, and emphasizes accessibility compliance with WCAG, ADA, and Section 508 standards.
RGBlind.com's answer:
RGBlind.com's answer:
RGBlind.com was created to help raise awareness of color vision deficiencies and provide an accessible, accurate tool for designers, educators, and families. The platform aims to make digital content more inclusive by giving creators the ability to test and improve visual accessibility.
RGBlind.com's answer:
RGBlind.com's answer:
Share your experience with using JavaScript.com and RGBlind.com. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


The best resource I know of is Javascript.com for learning Javascript for the first time. It's made by Pluralsight which is a site that contains courses. - Source: dev.to / over 4 years ago
Tracking RGBlind.com since Sep 2025.
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Free online Ishihara color blindness screening test in 13 languages. Instant severity result, downloadable PDF report, and an embeddable widget. No sign-up, no email. Screens for red-green color vision deficiency, not a medical diagnosis.
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Programming exercises for experienced engineers.
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From the perspective of a color blind person, some colors are impossible to distinguish.
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