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Accessibility Knowledge Portal

Learn accessibility testing with practical examples and reusable references.

This portal is educational, not a scanner. Use it to learn WCAG, ARIA, color contrast, screen reader expectations, keyboard testing, and accessible component patterns.

Browse accessibility topics

Search examples, snippets, screen reader notes, WCAG guidance, and interview prep.

WCAG examples

WCAG 2.2 AA Examples

Learn WCAG 2.2 AA testing with practical pass/fail examples for product teams, QA testers, and developers.

WCAGFormsButtons

ARIA patterns

ARIA Examples

Understand when ARIA helps, when it hurts, and how to write common ARIA patterns safely.

ARIASemanticsModals

Contrast guidance

Color Contrast Library

Browse accessible color pair examples, contrast ratio guidance, and copyable color combinations.

Color ContrastWCAGDesign

Reusable code

Accessibility Snippets

Copy reusable HTML, React, and Tailwind snippets for accessible UI patterns.

SnippetsReactTailwind

Manual testing

Screen Reader Examples

Learn expected screen reader announcements and keyboard notes for NVDA, VoiceOver, and common UI patterns.

Screen ReadersNVDAVoiceOver

Interview prep

Accessibility Interview Questions

Practice accessibility interview questions with answers for WCAG, ARIA, keyboard testing, forms, color contrast, semantic HTML, and screen readers.

InterviewWCAGARIA

Example driven

Pass/fail examples for forms, links, images, buttons, headings, tables, modals, alerts, and navigation.

Ready to expand

Content is stored in structured TypeScript so new lessons, templates, and course links can be added quickly.

Readable layout

Ad and course placements are reserved without disrupting the article reading flow.