Why Accessibility Checker?
A comprehensive toolkit that brings professional-grade WCAG testing to your fingertips — no browser extensions required.
WCAG 2.1 & 3.0 (APCA)
Test against both current WCAG 2.1 standards and the next-generation APCA algorithm from WCAG 3.0. Get instant pass/fail results for A, AA, and AAA conformance levels with detailed explanations.
Smart Color Suggestions
Don't just find problems — fix them. Get AI-powered color alternatives that maintain your design intent and brand identity while meeting accessibility standards at every conformance level.
Automated axe-Based Auditing
Run comprehensive accessibility audits powered by the industry-standard axe engine. Identify issues beyond color contrast — from missing labels to incorrect ARIA attributes and heading hierarchy.
Works at the OS Level
Forget about juggling plugins for Figma, Sketch, Adobe XD, and every browser. Accessibility Checker works at the operating system level, so every app and website on your device is automatically supported.
Simply pick any two colors on screen and instantly see the contrast ratio, WCAG compliance level, and suggested alternatives if needed. Export colors as hex, RGB, or UIColor values for your workflow.
- System-wide color picker — works in any app
- Export as hex, RGB, HSL, or UIColor
- Real-time contrast ratio calculation
- Supports both iOS and macOS
AI-Powered Color Suggestions
When your color combination fails a WCAG test, Accessibility Checker doesn't just tell you there's a problem — it solves it. The AI engine generates accessible alternatives that stay true to your design palette.
Each suggestion is pre-validated against your target conformance level, so you can pick a compliant color with confidence and move on.
Try It FreeUnderstanding WCAG Standards
Web Content Accessibility Guidelines (WCAG) ensure digital content is perceivable, operable, understandable, and robust for all users.
WCAG 2.1 Contrast
WCAG 2.1 defines three conformance levels. For normal text, Level AA requires a 4.5:1 contrast ratio and Level AAA requires 7:1. For large text (18pt+ or 14pt+ bold), AA requires 3:1 and AAA requires 4.5:1. Accessibility Checker tests all levels instantly.
WCAG 3.0 & APCA
The Advanced Perceptual Contrast Algorithm (APCA) is the next-generation contrast method referenced in WCAG 3.0 drafts. It accounts for spatial frequency, font weight, and polarity — producing more accurate, human-perception-aligned results than the current ratio model.
European Accessibility Act
The EAA requires digital products and services sold in the EU to be accessible by June 2025. Accessibility Checker helps you prepare by testing against the WCAG criteria that underpin EN 301 549, the harmonised standard referenced by the Act.
Full Automated Auditing
Go beyond color contrast. The built-in axe-powered audit engine scans any webpage and reports issues across the full spectrum of WCAG success criteria — missing alt text, broken heading hierarchy, ARIA misuse, form label problems, and more.
Each issue includes a clear description, the relevant WCAG guideline, and actionable steps to fix it. Generate shareable reports for your team or clients.
- Powered by the axe accessibility engine
- Tests against 50+ WCAG rules
- Actionable fix recommendations
- Export and share PDF reports
More Powerful Features
Everything a designer, developer, or QA engineer needs to ship accessible products.
Color Picker with Export
Pick any color on screen with the system-wide pipette. Copy values as hex, RGB, HSL, or Swift UIColor — ready to paste directly into your code or design tool.
Report Generation
Generate detailed accessibility reports covering every issue found. Share them with stakeholders, attach them to tickets, or archive them for compliance documentation.
iOS & macOS Native
Built as a universal Apple app with a native SwiftUI interface. Runs beautifully on iPhone, iPad, and Mac — with iCloud sync to keep your data in one place across devices.
Start Making Your Designs Accessible Today
Download Accessibility Checker and ensure your apps and websites meet WCAG standards — on iPhone, iPad, and Mac.