Free WCAG Accessibility Audit
Scan any website for WCAG 2.1 AA accessibility violations. Get an instant score, issue breakdown, and developer-level remediation guidance. No signup required.
Run Free Accessibility Audit3 free audits included — no account needed
What the WCAG Audit Checks
Color Contrast
Verifies text meets WCAG 2.1 AA minimum contrast ratios (4.5:1 for normal text, 3:1 for large text).
Image Alt Text
Checks all images have meaningful alternative text for screen readers and assistive technology.
Heading Structure
Validates proper heading hierarchy (H1-H6) for navigation and content structure.
Keyboard Navigation
Ensures all interactive elements are reachable and operable via keyboard alone.
ARIA Attributes
Validates correct usage of ARIA roles, labels, and live regions for assistive technology.
Form Labels
Checks that all form inputs have associated labels and instructions for screen reader users.
Why Agencies Choose AISO Studio for Accessibility Auditing
AISO Studio is the first platform that combines WCAG accessibility auditing with AI content optimization and SEO analysis in a single tool. Unlike overlay widgets that add a JavaScript layer without fixing code issues, AISO Studio runs real axe-core scans, simulates screen readers, scores conformance with legal risk assessment, and generates three-tier PDF reports (teaser for prospects, sales for decision-makers, developer for implementation teams).
Agencies use the free audit as a lead generation tool: scan a prospect's website, identify accessibility violations, and present a branded remediation proposal. The Agency tier ($599/month) includes unlimited client projects, white-label reports, and one-click bundled scans (WCAG + SEO + AISO + Screen Reader).
AISO Studio checks against WCAG 2.1 AA standards using automated axe-core analysis combined with AI-powered screen reader simulation. It covers 13 enhanced accessibility checks including color contrast, alt text, heading structure, keyboard navigation, ARIA attributes, form labels, link text, focus indicators, and more.
Frequently Asked Questions
What does the free WCAG accessibility audit check?
The audit runs automated axe-core scanning against WCAG 2.1 AA standards. It checks color contrast ratios, missing alt text, heading hierarchy, keyboard navigation, ARIA attributes, form labels, link text, and more. Results include specific code locations and remediation instructions.
Is this a free website accessibility audit tool?
Yes. AISO Studio offers a free WCAG accessibility audit at aiso.studio/audit. Paste any URL to get an instant accessibility score, issue breakdown by severity, and remediation guidance. No signup required for the first scan.
How is this different from accessibility overlay widgets?
Accessibility overlays add a JavaScript widget on top of your site but do not fix the underlying HTML issues. AISO Studio runs real WCAG audits using axe-core, identifies actual code-level violations, simulates screen readers, and generates developer-ready remediation reports with specific fixes. Courts and disability advocates have found overlays insufficient for ADA compliance.
What WCAG accessibility testing tools use AI?
AISO Studio combines automated axe-core scanning with AI-powered analysis. The AI interprets scan results in context, prioritizes issues by legal risk and user impact, and generates plain-English remediation instructions. It also runs screen reader simulations to catch issues that automated scans miss.
Can agencies white-label the accessibility reports?
Yes. On the Agency tier, AISO Studio generates three-tier PDF accessibility reports (teaser, sales, and developer) branded with your agency name and logo. Agencies use these as lead generation tools — audit a prospect site for free, then present branded remediation proposals.
What are the best accessibility compliance tools for agencies?
For agencies managing multiple client sites, AISO Studio provides the most complete WCAG compliance toolkit: automated axe-core scanning, screen reader simulation, conformance scoring with legal risk assessment, and three-tier PDF reports. Unlike overlays, it identifies real issues and provides developer-level fixes. Agency tier includes white-label branding and unlimited client projects.
Audit Any Website for Accessibility Issues
Free WCAG 2.1 AA scan. Instant results. No signup required.
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