Accessibility Tools for Developers

Join us in making the technology of the world accessible to people of all abilities

A team is working together to make a website and its elements accessible

Why Accessibility?

One in five people has a disability that affects their daily life. Having equal access to technology has a profound, enabling effect for people with disabilities.


Developer tools for newbies and experts alike


  • Check Accessibility
  • View Results
  • Remediate Issues


Browse our collection of articles from #a11y experts


  • JavaScript
  • Forms
  • Color and Contrast


Check out virtual and IRL events across the globe


  • Inclusive design
  • Fixing Accessibility Issues
  • Understanding Web Accessibility (A11y)

Start with our free tools

Explore our free tools to test for some common accessibility issues.

Browser showing search bar and page HTML page structure

Page Tester

Want to know if your website is accessible to persons with disabilities? Use the free community editions of our best tools to start evaluating your system and get early insights.

Accessible Color Picker (New)

The color contrast checker provides a quick and easy method for testing color combinations for validity under leading accessibility standards such as the Web Content Accessibility Guidelines (WCAG) 2.0 requirements.

Desktop monitor show a pass with a smilie face and fail with a not happy face

Color Contrast Checker

The algorithm used in this tool and subsequent results are based on the luminosity algorithm recommended in the WCAG 2.0 guidelines to test for contrast.

Articles and Expert Insights

Get expert insights from our latest articles.

2020 State of Digital Accessibility Survey

Enter to win an Echo Dot! We are collecting responses from professionals across roles and industries through February 2020

ADA Demand Letters & Settlements

Expert tips and guidance for dealing with demand letters and settlements learned from 20 years working with clients on theirs

Why Accessibility? Why Now?

A look at the legal, market, and brand risks your organization faces when you’re digital assets aren’t accessible to individuals with disabilities


Join us at our next live webinar or view our on-demand presentations!

Free Training Series: Web Accessibility for Product & Marketing Teams

February 21 – March 28, 2020

Six-part series on key digital accessibility topics affecting product and marketing roles. New topics each week with interactive presentations, Q&A, and homework assignments to inspire you to put your new knowledge to work immediately.

Inaccessible Healthcare Websites: The Risk of Litigation and Patients’ Health


An introduction to inclusion, accessibility, and the impact on people with and without disabilities; accessibility regulation and litigation in the healthcare space; and high-level principles for designing and building inclusion using WCAG 2.1 & other access standards and guidelines.

Value-Based Accessibility for Financial Services Companies


Learn how to integrate the right web and mobile accessibility techniques to create a lean, cost-effective practice of user-centered design, development, and project management for financial institutions.