Koa11y Alternatives

Free tool for testing how good your website is, and what you can do to improve it. Check accessibility, SEO, social media, compliance and more.

An accessibility visualization toolkit from Khan Academy

Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.

Try for free Open Source freemium

Digital Governance

Making websites accessible to people with disabilities

paid Free Trial $49.0 / Monthly (For websites under 1,000 unique pages)

Modern web accessibility tools for agencies & webmasters

paid Free Trial $49.0 / Monthly (Standard, 3 Websites, Unlimited Pages, Unlimited Page Views)

instantly fix web accessibility issues on your website

Open Source

Contrast check and color blindness simulator for Sketch.

A menu bar based colour contrast analyser

TPGi's ADA Color Contrast Checker checks for helps determine the accessibility the contrast ratio of two colors for WCAG AA and AAA.

Site-wide Accessibility and HTML validation made easy. With a single click, Rocket Validator will check thousands of web pages on your site for Accessibility and HTML conformance, producing a detailed, actionable report on seconds.

paid Free Trial $36.0 / Monthly (25,000 HTML checks/month, 1,000 docs/report, 5 requests/second)

Total Validator can check your website to help ensure that it is accessible, uses valid HTML and CSS, has no broken links, and is free from spelling mistakes.

Check the accessibility of text against the WCAG.

A tool to make sure your brand colors are ADA compliant.