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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.

SourceForge.net: ShellNewHandler details page

Which is more popular?
Based on our record, ShellNewHandler seems to be more popular. It has been mentioned 2 times since March 2021.
Website, pricing, platforms and company facts side by side.
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Ishihara Test
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| Website | ishiharatest.com | sourceforge.net |
| Pricing | — | |
| Company | Startup from Slovakia | — |
| Listed in |
In their own words, as submitted to SaaSHub.

IshiharaTest.com is a free, no-sign-up online Ishihara color blindness screening test. Based on the classic Ishihara plate method, it gives a fast, private indication of whether you may have a red-green color vision deficiency, along with a difficulty breakdown and a downloadable PDF report. It...
No description of ShellNewHandler yet.
An editorial look at what each product does well and who it suits.

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Why this product is good
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Overall verdict
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Ishihara Test and ShellNewHandler. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Tracking Ishihara Test since Apr 2026.
Use Shell New Handler. Run the portable app and simply untick the items you don't want to appear in your new context menu. Source: about 4 years ago
I've always used ShellNewHandler for this. It's a really simple portable utility that allows you to remove most of the items from that menu. Tested it out on Windows 11 and it's still compatible. Source: over 5 years ago
When comparing Ishihara Test and ShellNewHandler, you can also consider the following products.

Free color accessibility toolkit with color blindness simulators, WCAG contrast checker, and accessible palette generator for designers and developers.
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The Color Blind Test is an optical test that is designed to determine a person’s type of color blindness and identify whether or not they have a color deficiency.
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A digitalized color blind test for adults and kids. This tool provides accurate results as it follows all clinical procedures. Taking a test here will save you time and money as you do not need to visit a doctor.
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Check color contrast ratio and follow WCAG with ease.
Compare Venngage WCAG Color Contrast Checker to Ishihara Test or ShellNewHandler:

Free online visual field test to screen for blind spots and vision loss. Quick, easy, and accessible from any device.
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