Accessibility Checker WCAG Audit & Color Contrast
Audit any website for accessibility. In seconds. From your iPhone or iPad — or right inside Safari on your Mac, with every finding tracked in the new Reports Hub.
New here? Read the user guide for a tour of every tool. On a Mac? See the Mac app help, including the Safari extension guide.
New in Version 9.1
Audit in Safari and manage every finding in one place on your Mac — and it’s ready for iOS 27 and macOS 27.
Safari Extension for Mac
Run an axe-core audit on the page you're viewing, overlay its keyboard tab order, and check contrast — without leaving Safari. Send the results to the Reports Hub in one click.
Reports Hub on Mac
Organise pages into projects and audit rounds, mark issues Open, Resolved, or Dismissed — and keep those statuses when you re-audit. Export HTML or Markdown reports and an EN 301 549 accessibility statement.
Ready for iOS 27 & macOS 27
The title bar tucks away as you scroll long screens, the live camera eases off in Low Power Mode instead of draining your battery, and the Mac app is built for macOS 27.
Three Tools. One Complete Toolkit.
Professional-grade WCAG testing on your iPhone and iPad — and on your Mac, right inside Safari.
1. Automated Audit
Run the industry-standard axe-core engine against any URL. Get a prioritised list of WCAG issues, each explained in plain language with practical fix guidance.
2. Focus Order
Visualize the keyboard focus (tab) order of any page, see the sequence keyboard and screen-reader users follow, and catch illogical jumps (WCAG 2.4.3).
3. Color Contrast
Measure the contrast between any two colors in a screenshot, website, or live camera view — against WCAG 2.1 and the APCA algorithm from WCAG 3.0.
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.
- Powered by the axe-core accessibility engine (version selectable)
- Issues grouped by severity: critical, serious, moderate, minor
- Plain-language explanations and fix recommendations
- Export findings as text, CSV, or a PDF report
Focus Order: Test Keyboard Navigation Visually
Tabbing through a page is how keyboard and many screen-reader users experience your site — and it's one of the hardest things to test without specialist tools. Focus Order maps every focusable element with a numbered marker and draws the path between them.
An illogical sequence is a WCAG 2.4.3 (Focus Order) failure. With the whole route drawn on top of the page, jumps and traps are obvious in seconds — and the full-page map exports as an image or PDF for tickets and audit evidence.
Focus Order Guide
Check Color Contrast Anywhere
Load a screenshot, take a photo, enter a URL, or point your camera at anything — then move two pickers to measure the exact contrast between any two colors. Results update live with pass/fail for WCAG 2.1 A, AA, and AAA, for both normal and large text.
When a combination fails, suggested alternative colors show you the nearest accessible options. Copy any color as HTML hex or Swift UIColor and paste it straight into your code.
- Works on screenshots, photos, websites, and live camera
- WCAG 2.1 ratios plus APCA (WCAG 3.0 draft)
- Suggested accessible color alternatives
- Check directly from Safari and Photos via the share sheet
Designed for iPad
On big screens, results now live in a floating card that you can move to any corner — keeping the page you're testing in full view while you work through issues.
With a hardware keyboard, shortcuts cover the whole workflow: run an audit, switch tools, and export results without touching the screen. Pointer and trackpad interactions feel native throughout.
iPad Guide
Audit Right Inside Safari
The Mac app now includes a Safari extension. Click its toolbar button on any page and an axe-core audit runs straight away — the same engine and version as the iPhone app, so results match across devices. Open a finding and click any affected element to highlight it on the page.
Switch to Tab Order to overlay numbered badges and the keyboard path on the live page, with warnings for positive tabindex, stops that jump against the reading order, and focus that lands off-screen. A Contrast tab checks any pair and suggests passing colors.
- Send to Reports Hub in one click — on-device, no account
- Copy a Markdown report or save the findings as JSON
- Nothing leaves your Mac: no upload, no tracking
The Reports Hub: Track Every Fix
Click the Dock icon to open a full workspace for your audits. Keep a project for each client or site, start a new audit round when fixes land, and see what changed: coverage of the pages in scope, and how many issues were fixed since the previous round.
Triage once. Mark issues Open, Resolved, or Dismissed and add notes — statuses stick through re-audits, and every finding links to its WCAG success criterion. When you're done, export the round as HTML or Markdown, or generate an accessibility statement in the EN 301 549 / W3C structure from the project's open issues, in 17 languages.
New in 9.2: when you re-audit a page, issues you marked Resolved are checked against the new scan and shown as Verified or Regressed. The checker, Lens, Safari extension and one Hub project are free; Pro adds report export, accessibility statements, unlimited projects and verified fixes.
The menu-bar contrast checker and the Color Blindness Lens are one click away in the hub toolbar.
Reports Hub GuideEAA-Ready Reports & Statements
The European Accessibility Act has been in force since June 2025. Turn your audits into the documentation it expects.
Automated WCAG Report
Turn an audit into a structured WCAG report aligned with the criteria behind EN 301 549 — the harmonised standard the EAA references — ready to share with stakeholders or attach to compliance records.
Accessibility Statement
Generate a self-assessed accessibility statement you can publish. See a live example statement, available in 17 languages.
Honest Automated Coverage
Automated checks give you a fast EAA-readiness baseline — but full conformance always requires manual testing. The app tells you exactly which WCAG criteria it can and cannot check automatically.
New: a self-paced accessibility training course on WCAG 2.2, EN 301 549 and the EAA, with a test in the app after every lesson. The first lesson is free, and the rest is included with your plan.
Understanding 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
Since 28 June 2025, the EAA requires digital products and services sold in the EU to be accessible. Accessibility Checker helps you assess and document readiness by testing against the WCAG criteria that underpin EN 301 549, the harmonised standard referenced by the Act.
More Powerful Features
Everything a designer, developer, or QA engineer needs to ship accessible products.
Color Picker with Export
Pick any color on screen and copy it as HTML hex or Swift UIColor (RGBA or HSB) — ready to paste directly into your code or design tool.
Share & Export
Create contrast reports to share by Mail, Messages, or Notes; export focus-order maps as images or PDFs; and share audit findings as text, CSV, or a PDF report.
Private by Design
Everything runs on your device. The sites, images, and colors you check never leave your iPhone, iPad, or Mac.
Start Making Your Designs Accessible Today
Download Accessibility Checker and ensure your apps and websites meet WCAG standards — on iPhone, iPad, and Mac.
