Color Blind & Low Vision Simulator icon

Color Blind & Low Vision Simulator

by xirclebox · colorblind.fyi · Accessibility
Established publisherManifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

This vision simulator allows users to observe how people with colorblindness or low vision may perceive web-based content.

Users
433
+101 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#46K
#39K among extensions
Version
2.0.0
updated 1 Mar 2026

Users

monthly, 10 months
0216433Dec 2025Jun 2026Oct 2026
Latest, 15 Oct 2026: 433 usersMove the mouse over the chart for any month

Ratings count

monthly, 10 months
001Dec 2025Jun 2026Oct 2026
Latest, 15 Oct 2026: 1 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 Color Blind & Low Vision Simulator

The Color Blind & Low Vision Simulator is an accessibility tool that allows users to test and observe how people with colorblindness or low vision may perceive web-based content. Note: The simulator is active only on the tab in focus. If you don't see a change, refresh the page you want to test. Features: • Light and Dark modes • 9 color vision options • 7 Low vision options Types of color vision: • Trichromacy (Normal vision) • Protanopia (Red-blind) • Protanomaly (Red-weak) • Deuteranopia (Green-blind) • Deuteranomaly (Green-weak) • Tritanopia (Blue-blind) • Tritanomaly (Blue-weak) • Achromatopsia (Complete color blindness) • Achromatomaly (Partial color blindness) Types of low vision: • Mild Blur (Slight vision impairment) • Moderate Blur (Moderate vision impairment) • Severe Blur (Severe vision impairment) • Low Contrast (Reduced contrast sensitivity) • Cataracts (Cloudy/yellowed vision) • Tunnel Vision (Loss of peripheral vision) • Central Vision Loss (Loss of central vision acuity) ---------------------------------------- 2.0.0 Update: • You can now create combinations by selecting one color vision filter and one low vision filter • Added badges to show which filters are active • Added a "Reset" button that clears the active filters • Header is now sticky so that the badges are always visible

Growth

WindowUsersChangeRatingsRating
7 days+42+10.7%00.00
30 days+101+30.4%00.00
6 months+234+117.6%00.00

Version history

5 versions recorded
2.0.01 Mar 2026
1.0.315 Feb 2026
1.0.28 Jan 2026
1.0.130 Dec 2025
1.0.025 Dec 2025

Details

Category
Accessibility
First seen
25 Dec 2025
Size
30 KB
Languages
en-US
Pricing
Free
Extension ID
lgflijofdempkdlaknbfmacfidjjhjbb

Permissions and risk

Low riskimpact 2, likelihood 1
Permissions
activeTabstorage

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