Accessibility Tools
Audit and optimize digital accessibility with WCAG 2.1/2.2 AA & AAA contrast checkers, color blindness simulators, typography calculators, alt text generators, and ARIA validators. All tools run 100% in your browser with zero server uploads and instant processing.
Color Blindness & Daltonism Vision Simulator
Test and visualize designs, charts, and photos as seen by individuals with Deuteranopia, Protanopia, Tritanopia, and Achromatopsia 100% in-browser
WCAG Color Contrast & APCA Checker
Audit foreground and background color contrast against WCAG 2.1 AA and AAA standards
Color Blindness & Vision Deficiency Simulator
Simulate color blindness across 8 vision deficiency conditions for swatches and images
Accessible Font Size & Fluid Typography Calculator
Calculate modular typographic scales, fluid clamp() formulas, and viewing distance minimums
Multi-Algorithm Readability & Plain Language Checker
Audit reading levels with Flesch-Kincaid, Gunning Fog, SMOG, and WCAG 3.1.5 plain language criteria
Alt Text Decision Tree & Anti-Pattern Auditor
Generate compliant alt text and audit descriptions for screen reader accessibility
WAI-ARIA 1.2 Syntax & Semantic Role Validator
Validate ARIA roles, detect redundant HTML5 semantics, and ensure required attribute compliance
Theme Palette Matrix & Contrast Validator
Audit full design system color palettes for pairwise WCAG AA and AAA contrast compatibility
WCAG 1.4.12 Text Spacing & Flow Validator
Verify typography adaptability with WCAG 2.1 SC 1.4.12 line, paragraph, and letter spacing rules
Keyboard Navigation & Focus Trap Testing Sandbox
Interactive testing sandbox for keyboard navigation, focus visible rings, and modal traps
Image Accessibility & Text-in-Image Analyzer
Audit raster graphics for WCAG 1.1.1 non-text content and WCAG 1.4.5 images-of-text compliance
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