Axe Accessibility Tester

Pricing

Rating

Developer

Actor stats

Categories

Share

Automatically audit any website for WCAG accessibility compliance using the industry-standard axe-core engine. Identify barriers that prevent users with disabilities from accessing your content.

What it does

• Scans single pages or crawls entire websites
• Tests against WCAG 2.0, 2.1, and 2.2 standards (A, AA, AAA levels)
• Reports violations with severity ratings (critical, serious, moderate, minor)
• Provides specific remediation guidance for each issue
• Pinpoints exact HTML elements causing failures

Use cases

• QA teams: Catch accessibility regressions before deployment
• Agencies: Audit client websites for ADA/Section 508 compliance
• Developers: Integrate accessibility checks into CI/CD pipelines
• Consultants: Generate detailed reports for accessibility remediation projects

Input

Output

Each result includes:

• url: The tested page URL
• violationsCount: Total number of violations found
• warningsCount: Items requiring manual review
• passesCount: Number of passed checks
• severityCounts: Breakdown by critical, serious, moderate, minor
• violations: Detailed list with affected elements, selectors, and fix guidance

Example output

{
"url":"https://github.com/",
"wcagLevel":"wcag21aa",
"testedAt":"2025-12-08T00:10:00.000Z",
"violationsCount":2,
"warningsCount":5,
"passesCount":42,
"severityCounts":{
"critical":0,
"serious":1,
"moderate":1,
"minor":0
},
"violations":[
{
"id":"color-contrast",
"impact":"serious",
"description":"Elements must meet minimum color contrast ratio thresholds",
"help":"Elements must have sufficient color contrast",
"helpUrl":"https://dequeuniversity.com/rules/axe/4.10/color-contrast",
"nodes":[
{
"html":"<span class=\"text-muted\">Sign up</span>",
"target":[".signup-btn > span"],
"failureSummary":"Fix any of the following: Element has insufficient color contrast of 3.5:1 (foreground: #8b949e, background: #ffffff). Expected contrast ratio of 4.5:1"
}
]
}
]
}

Why axe-core?

axe-core is trusted by Microsoft, Google, and government agencies. It powers accessibility testing in Chrome DevTools and catches issues that other tools miss—with zero false positives guaranteed.