# Accessibility.build > Accessibility.build is a web accessibility platform: free WCAG 2.2 testing tools, in-depth guides to all 86 WCAG success criteria, compliance resources for laws like the ADA and the European Accessibility Act, original lawsuit and research data, and a plain-language glossary. The content is aimed at developers, designers, and compliance teams. Success-criterion guides and compliance pages are kept factually current (as of 2026); compliance pages are educational information, not legal advice. ## Key pages Primary entry points. - [Home](https://accessibility.build/) - [FAQ](https://accessibility.build/faq) - [Pricing](https://accessibility.build/pricing) - [Resources](https://accessibility.build/resources) - [About Us](https://accessibility.build/about) - [Contact](https://accessibility.build/contact) - [Desktop App](https://accessibility.build/desktop) - [API Documentation](https://accessibility.build/docs) - [Help Center](https://accessibility.build/help) ## Free accessibility tools Interactive testing and generation tools. - [Tools Hub](https://accessibility.build/tools) - [Heading Structure Analyzer](https://accessibility.build/tools/heading-analyzer) - [Color Contrast Checker](https://accessibility.build/tools/contrast-checker) - [Accessible Palette Studio](https://accessibility.build/tools/accessible-palette-studio) - [Accessible Typography Studio](https://accessibility.build/tools/accessible-typography-studio) - [Color Palette Generator](https://accessibility.build/tools/color-palette-generator) - [Mobile Accessibility Checker](https://accessibility.build/tools/mobile-accessibility-checker) - [AI Accessibility Code Generator](https://accessibility.build/tools/accessibility-code-generator) - [Accessibility Overlay Detector](https://accessibility.build/tools/overlay-detector) - [AI Alt Text Generator](https://accessibility.build/tools/alt-text-generator) - [PDF Accessibility Checker](https://accessibility.build/tools/pdf-accessibility-checker) - [URL Accessibility Auditor](https://accessibility.build/tools/url-accessibility-auditor) - [Accessibility ROI Calculator](https://accessibility.build/tools/accessibility-roi-calculator) - [Scope Checker](https://accessibility.build/tools/scope-checker) - [AI Accessibility Audit Helper](https://accessibility.build/tools/accessibility-audit-helper) - [Accessibility Report Generator](https://accessibility.build/tools/accessibility-report-generator) - [Accessibility Statement Generator](https://accessibility.build/tools/accessibility-statement-generator) ## WCAG 2.2 success criteria In-depth guide for every one of the 86 WCAG 2.2 success criteria (Level A, AA, AAA), each with requirements, examples, and testing methods. - [WCAG Success Criteria Hub](https://accessibility.build/wcag) - [1.4.4 Resize Text](https://accessibility.build/wcag/1-4-4) - [1.4.5 Images of Text](https://accessibility.build/wcag/1-4-5) - [1.4.10 Reflow](https://accessibility.build/wcag/1-4-10) - [1.4.11 Non-text Contrast](https://accessibility.build/wcag/1-4-11) - [1.4.12 Text Spacing](https://accessibility.build/wcag/1-4-12) - [1.4.13 Content on Hover or Focus](https://accessibility.build/wcag/1-4-13) - [2.4.6 Headings and Labels](https://accessibility.build/wcag/2-4-6) - [2.4.7 Focus Visible](https://accessibility.build/wcag/2-4-7) - [2.4.11 Focus Not Obscured (Minimum)](https://accessibility.build/wcag/2-4-11) - [2.5.7 Dragging Movements](https://accessibility.build/wcag/2-5-7) - [2.5.8 Target Size (Minimum)](https://accessibility.build/wcag/2-5-8) - [3.1.1 Language of Page](https://accessibility.build/wcag/3-1-1) - [3.2.6 Consistent Help](https://accessibility.build/wcag/3-2-6) - [3.3.1 Error Identification](https://accessibility.build/wcag/3-3-1) - [3.3.2 Labels or Instructions](https://accessibility.build/wcag/3-3-2) - [3.3.3 Error Suggestion](https://accessibility.build/wcag/3-3-3) - [3.3.7 Redundant Entry](https://accessibility.build/wcag/3-3-7) - [3.3.8 Accessible Authentication (Minimum)](https://accessibility.build/wcag/3-3-8) - [4.1.2 Name, Role, Value](https://accessibility.build/wcag/4-1-2) - [4.1.3 Status Messages](https://accessibility.build/wcag/4-1-3) - [1.1.1 Non-text Content](https://accessibility.build/wcag/1-1-1) - [1.2.1 Audio-only and Video-only (Prerecorded)](https://accessibility.build/wcag/1-2-1) - [1.2.2 Captions (Prerecorded)](https://accessibility.build/wcag/1-2-2) - [1.2.3 Audio Description or Media Alternative (Prerecorded)](https://accessibility.build/wcag/1-2-3) - [1.2.4 Captions (Live)](https://accessibility.build/wcag/1-2-4) - [1.2.5 Audio Description (Prerecorded)](https://accessibility.build/wcag/1-2-5) - [1.3.1 Info and Relationships](https://accessibility.build/wcag/1-3-1) - [1.3.2 Meaningful Sequence](https://accessibility.build/wcag/1-3-2) - [1.3.3 Sensory Characteristics](https://accessibility.build/wcag/1-3-3) - [1.3.4 Orientation](https://accessibility.build/wcag/1-3-4) - [1.3.5 Identify Input Purpose](https://accessibility.build/wcag/1-3-5) - [1.4.1 Use of Color](https://accessibility.build/wcag/1-4-1) - [1.4.2 Audio Control](https://accessibility.build/wcag/1-4-2) - [1.4.3 Contrast (Minimum)](https://accessibility.build/wcag/1-4-3) - [2.1.1 Keyboard](https://accessibility.build/wcag/2-1-1) - [2.1.2 No Keyboard Trap](https://accessibility.build/wcag/2-1-2) - [2.1.4 Character Key Shortcuts](https://accessibility.build/wcag/2-1-4) - [2.2.1 Timing Adjustable](https://accessibility.build/wcag/2-2-1) - [2.2.2 Pause, Stop, Hide](https://accessibility.build/wcag/2-2-2) - [2.3.1 Three Flashes or Below Threshold](https://accessibility.build/wcag/2-3-1) - [2.4.1 Bypass Blocks](https://accessibility.build/wcag/2-4-1) - [2.4.2 Page Titled](https://accessibility.build/wcag/2-4-2) - [2.4.3 Focus Order](https://accessibility.build/wcag/2-4-3) - [2.4.4 Link Purpose (In Context)](https://accessibility.build/wcag/2-4-4) - [2.4.5 Multiple Ways](https://accessibility.build/wcag/2-4-5) - [2.5.1 Pointer Gestures](https://accessibility.build/wcag/2-5-1) - [2.5.2 Pointer Cancellation](https://accessibility.build/wcag/2-5-2) - [2.5.3 Label in Name](https://accessibility.build/wcag/2-5-3) - [2.5.4 Motion Actuation](https://accessibility.build/wcag/2-5-4) - [3.1.2 Language of Parts](https://accessibility.build/wcag/3-1-2) - [3.2.1 On Focus](https://accessibility.build/wcag/3-2-1) - [3.2.2 On Input](https://accessibility.build/wcag/3-2-2) - [3.2.3 Consistent Navigation](https://accessibility.build/wcag/3-2-3) - [3.2.4 Consistent Identification](https://accessibility.build/wcag/3-2-4) - [3.3.4 Error Prevention (Legal, Financial, Data)](https://accessibility.build/wcag/3-3-4) - [1.2.6 Sign Language (Prerecorded)](https://accessibility.build/wcag/1-2-6) - [1.2.7 Extended Audio Description (Prerecorded)](https://accessibility.build/wcag/1-2-7) - [1.2.8 Media Alternative (Prerecorded)](https://accessibility.build/wcag/1-2-8) - [1.2.9 Audio-only (Live)](https://accessibility.build/wcag/1-2-9) - [1.3.6 Identify Purpose](https://accessibility.build/wcag/1-3-6) - [1.4.6 Contrast (Enhanced)](https://accessibility.build/wcag/1-4-6) - [1.4.7 Low or No Background Audio](https://accessibility.build/wcag/1-4-7) - [1.4.8 Visual Presentation](https://accessibility.build/wcag/1-4-8) - [1.4.9 Images of Text (No Exception)](https://accessibility.build/wcag/1-4-9) - [2.1.3 Keyboard (No Exception)](https://accessibility.build/wcag/2-1-3) - [2.2.3 No Timing](https://accessibility.build/wcag/2-2-3) - [2.2.4 Interruptions](https://accessibility.build/wcag/2-2-4) - [2.2.5 Re-authenticating](https://accessibility.build/wcag/2-2-5) - [2.2.6 Timeouts](https://accessibility.build/wcag/2-2-6) - [2.3.2 Three Flashes](https://accessibility.build/wcag/2-3-2) - [2.3.3 Animation from Interactions](https://accessibility.build/wcag/2-3-3) - [2.4.8 Location](https://accessibility.build/wcag/2-4-8) - [2.4.9 Link Purpose (Link Only)](https://accessibility.build/wcag/2-4-9) - [2.4.10 Section Headings](https://accessibility.build/wcag/2-4-10) - [2.4.12 Focus Not Obscured (Enhanced)](https://accessibility.build/wcag/2-4-12) - [2.4.13 Focus Appearance](https://accessibility.build/wcag/2-4-13) - [2.5.5 Target Size (Enhanced)](https://accessibility.build/wcag/2-5-5) - [2.5.6 Concurrent Input Mechanisms](https://accessibility.build/wcag/2-5-6) - [3.1.3 Unusual Words](https://accessibility.build/wcag/3-1-3) - [3.1.4 Abbreviations](https://accessibility.build/wcag/3-1-4) - [3.1.5 Reading Level](https://accessibility.build/wcag/3-1-5) - [3.1.6 Pronunciation](https://accessibility.build/wcag/3-1-6) - [3.2.5 Change on Request](https://accessibility.build/wcag/3-2-5) - [3.3.5 Help](https://accessibility.build/wcag/3-3-5) - [3.3.6 Error Prevention (All)](https://accessibility.build/wcag/3-3-6) - [3.3.9 Accessible Authentication (Enhanced)](https://accessibility.build/wcag/3-3-9) ## Guides How-to and explainer articles. - [OKLCH & APCA Color Systems](https://accessibility.build/guides/oklch-apca-color-systems) - [Accessible Typography](https://accessibility.build/guides/accessible-typography-wcag) - [WCAG 2.1 vs 2.2](https://accessibility.build/guides/wcag-2-1-vs-2-2) - [WCAG 2.2 AA Requirements](https://accessibility.build/guides/wcag-2-2-aa-requirements) - [Accessible Forms Guide](https://accessibility.build/guides/accessible-forms) - [Keyboard Accessibility](https://accessibility.build/guides/keyboard-accessibility) - [Accessible Color Palettes](https://accessibility.build/guides/accessible-color-palettes) - [Screen Reader Testing](https://accessibility.build/guides/screen-reader-testing) - [Guides Hub](https://accessibility.build/guides) - [ADA Website Lawsuit Cost](https://accessibility.build/guides/ada-website-lawsuit-cost) - [Accessibility Overlays](https://accessibility.build/guides/accessibility-overlays) - [PDF Accessibility](https://accessibility.build/guides/pdf-accessibility) - [How to Audit Website Accessibility](https://accessibility.build/guides/how-to-audit-website-accessibility) - [Overlay Alternatives](https://accessibility.build/guides/accessibility-overlay-alternatives) - [Automated vs Manual Testing](https://accessibility.build/guides/automated-vs-manual-accessibility-testing) - [AI Accessibility Audit](https://accessibility.build/guides/ai-accessibility-audit) - [AI Accessibility Lawsuits](https://accessibility.build/guides/ai-accessibility-lawsuits) - [Fashion Nova Settlement](https://accessibility.build/guides/fashion-nova-accessibility-settlement) - [axe vs WAVE](https://accessibility.build/guides/axe-vs-wave) - [DOJ Title II Deadline](https://accessibility.build/guides/doj-title-ii-deadline-extension) - [Section 504 Deadline](https://accessibility.build/guides/section-504-web-accessibility-deadline) ## Accessibility law & compliance Jurisdiction guides: ADA, EAA, Section 508, EN 301 549, and US states. Educational, not legal advice. - [ADA Website Compliance](https://accessibility.build/compliance/ada) - [European Accessibility Act (EAA)](https://accessibility.build/compliance/eaa) - [Section 508 Compliance](https://accessibility.build/compliance/section-508) - [Compliance & Laws Hub](https://accessibility.build/compliance) - [EN 301 549 Standard](https://accessibility.build/compliance/en-301-549) - [California & the Unruh Act](https://accessibility.build/compliance/california) - [New York Accessibility Laws](https://accessibility.build/compliance/new-york) ## Accessibility by industry Sector-specific compliance guidance. - [E-commerce Accessibility](https://accessibility.build/industries/ecommerce) - [Healthcare Accessibility](https://accessibility.build/industries/healthcare) - [Education Accessibility](https://accessibility.build/industries/education) - [Government Accessibility](https://accessibility.build/industries/government) - [Accessibility by Industry](https://accessibility.build/industries) ## Original research & data Citable datasets and reports on accessibility lawsuits, laws, and the state of web accessibility. - [State of Accessibility Report](https://accessibility.build/research/state-of-accessibility) - [Accessibility Laws by Jurisdiction](https://accessibility.build/research/accessibility-laws) - [Accessibility Lawsuit Tracker](https://accessibility.build/research/accessibility-lawsuits) - [Research Hub](https://accessibility.build/research) ## Checklists WCAG conformance checklists. - [WCAG 2.2 Checklist](https://accessibility.build/checklists/wcag-2-2) - [Checklists Hub](https://accessibility.build/checklists) - [Interactive Checklist](https://accessibility.build/checklists/interactive) - [WCAG 2.2 AAA Checklist](https://accessibility.build/checklists/wcag-2-2/aaa) - [WCAG 2.2 Excel Checklist](https://accessibility.build/checklists/wcag-2-2/excel) ## Reference Glossary and ARIA reference. - [ARIA Roles & Attributes Reference](https://accessibility.build/reference/aria) - [Web Accessibility Glossary](https://accessibility.build/glossary) ## Component patterns Accessible UI pattern tutorials. - [Component Patterns Hub](https://accessibility.build/learn) - [Accessible Carousels](https://accessibility.build/learn/carousels) - [Accessible Modals](https://accessibility.build/learn/modals) - [Accessible Pagination](https://accessibility.build/learn/pagination) - [Accessible Search](https://accessibility.build/learn/search) - [Accessible Tables](https://accessibility.build/learn/table) ## WCAG 3.0 Guides to the next-generation accessibility guidelines. - [WCAG 3.0 Guide](https://accessibility.build/wcag-3) - [WCAG 3.0 vs 2.2](https://accessibility.build/wcag-3/comparison) - [WCAG 3.0 Concepts](https://accessibility.build/wcag-3/concepts) - [WCAG 3.0 Guidelines](https://accessibility.build/wcag-3/guidelines) - [Preparing for WCAG 3.0](https://accessibility.build/wcag-3/preparation) ## Full index - [Complete sitemap](https://accessibility.build/sitemap.xml): every indexable page. - [RSS feed](https://accessibility.build/feed.xml): latest blog posts and editorial updates. - [Atom feed](https://accessibility.build/atom.xml): latest blog posts and editorial updates.