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.