WCAG 2.1 Accessibility 1.4 Text and Contrast Testing and Checking Tool icon

WCAG 2.1 Accessibility 1.4 Text and Contrast Testing and Checking Tool

by Doubly · Accessibility
Manifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Toggles for WCAG: 1.4.12 (Text Spacing), 1.4.4 (Text Resize), 1.4.1 (Grayscale), 1.4.10 (320px Reflow).

Users
727
+7 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#36K
#31K among extensions
Version
2.1
updated 25 Feb 2025

Users

monthly, 2 years
0364727Nov 2024Nov 2025Oct 2026
Latest, 15 Oct 2026: 727 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 years
001Nov 2024Nov 2025Oct 2026
Latest, 15 Oct 2026: 0 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 WCAG 2.1 Accessibility 1.4 Text and Contrast Testing and Checking Tool

Are you building or auditing websites for accessibility? This updated, lightweight Chrome extension helps developers, designers, and accessibility testers verify adherence to multiple WCAG 2.1 criteria—instantly and in one place. What Does This Extension Do? With a simple toggle or slider, you can check how your webpage handles: 1.4.12 Text Spacing: Applies minimum spacing requirements (line height, letter spacing, word spacing, and paragraph spacing). Verify that your content remains legible and that layout and functionality aren’t broken when these spacing rules are enforced. 1.4.4 Text Resize: Use a slider to dynamically scale text between 100% and 200%. Quickly confirm that important elements remain visible, usable, and properly formatted at larger text sizes. 1.4.1 Use of Color: Convert the entire page to grayscale, ensuring that information isn’t conveyed by color alone. Catch issues early if your design heavily relies on color coding. 1.4.10 Reflow: Simulate a narrow 320px viewport by reflowing the page through Chrome’s built-in debugging protocol. This helps you see how content responds to mobile device widths without horizontal scrolling. Key Features One-Click Toggles: Quickly enable or disable specific WCAG adjustments—no code changes or browser restarts required. Persistent Settings: Your selected toggles automatically reapply when you visit or refresh new pages. Live Testing: Instantly spot layout or functionality issues triggered by real-world accessibility use cases like increased text size or limited color visibility. Whether you’re a developer, designer, or QA tester, this extension streamlines the process of WCAG compliance testing by putting critical checks just a click away!

Growth

WindowUsersChangeRatingsRating
7 days+5+0.7%00.00
30 days+7+1.0%00.00
6 months+115+18.8%00.00
1 year+308+73.5%00.00

Chrome Web Store search rankings

Where WCAG 2.1 Accessibility 1.4 Text and Contrast Testing and Checking Tool appears when people search the store, with the 30 day change
Search phrasePosition30 days
testing#59+8

Version history

3 versions recorded
2.125 Feb 2025
2.011 Feb 2025
1.021 Nov 2024

Details

Category
Accessibility
First seen
21 Nov 2024
Size
18 KB
Languages
en-GB
Pricing
Free
Extension ID
ebeafhjpiolhdgpbpbleblaogcnmgndc

Permissions and risk

Moderate riskimpact 3, likelihood 2
Permissions
activeTabscriptingstoragedebuggertabs

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