What is an accessibility testing platform?

An accessibility testing platform brings automated scans, manual and assistive-technology testing, scheduling, and reporting into one place, so a team can test websites and apps against WCAG and track fixes over time. A standalone checker scans one page; a platform covers the whole program.

What does the TestMu AI accessibility testing platform include?

A Chrome extension for on-demand scans (Accessibility DevTools), WCAG checks inside Selenium, Playwright, Cypress, and Appium tests (automated accessibility testing), recurring site scans (accessibility scheduling), a native app scanner on real devices (app accessibility testing), screen reader testing, and an MCP Server for AI coding tools. Compare each one on the accessibility testing tools page.

What is accessibility testing?

Accessibility testing checks whether people with disabilities can use a website or app, including people who rely on screen readers, keyboards, or magnification. It measures the product against WCAG and the laws built on it. For a full walkthrough, read the accessibility testing guide.

Which standards can I test against?

WCAG 2.0, 2.1, and 2.2 at Levels A, AA, and AAA, which also underpin the ADA, Section 508, the European Accessibility Act and EN 301 549, and AODA. Each tool lets you choose the WCAG version and level a scan runs against.

Will passing scans make my website ADA compliant?

Passing scans is strong evidence of WCAG conformance, but no tool can guarantee ADA compliance, which courts decide case by case. What the platform gives you is a documented program: dated scan history, severity-ranked issues, and exported reports that show continuous testing and remediation.

Does TestMu AI provide a VPAT or ACR?

No. A VPAT or Accessibility Conformance Report describes your own product, so your organization writes it. The platform supplies the evidence behind it: scan results mapped to WCAG success criteria, remediation history, and PDF or CSV exports.

How do I start a digital accessibility testing program?

Scan your 50 to 100 highest-traffic pages at WCAG 2.1 AA to get a baseline, then fix Critical issues that appear across many pages first, since they usually come from a shared template. Add checks to your CI pipeline so new code is tested, schedule a weekly scan of the live site, and run screen reader passes on your key user journeys.

Can automated accessibility testing find every issue?

No. Automated rules catch structural issues such as missing alt text, low contrast, and unlabeled fields. Whether alt text is meaningful, whether focus order makes sense, and whether screen reader announcements are clear still need a person, which is why the platform pairs automated scans with keyboard scans and NVDA, JAWS, VoiceOver, and TalkBack testing.

Does the platform test native mobile apps?

Yes. The native app scanner checks Android and iOS screens on real devices without code, Appium tests can add scan checkpoints, and KaneAI can insert scan steps into mobile tests. See app accessibility testing for the rules covered on each platform.

How are accessibility issues prioritized?

Every issue is ranked Critical, Serious, Moderate, or Minor and linked to the WCAG success criterion it fails, with the failing element and fix guidance. You can group issues by type, criterion, or severity, hide accepted items, and track an Accessibility Score across releases.

Can I test pages behind a login or on staging?

Yes. The Chrome extension scans any page you can open in your browser, scheduled scans can sign in with saved credentials or reach private environments through a tunnel, and automated tests reach whatever pages your test suite visits.

How is TestMu AI different from a standalone accessibility checker?

Accessibility testing runs on the same cloud your team uses for functional testing, so scans ride along with existing Selenium, Playwright, Cypress, and Appium runs on real browsers and 10,000+ real devices. Web, native mobile, manual, and automated results all land in one dashboard instead of separate tools.

Accessibility Testing Platform for Web & Mobile

Scan websites and native apps with automated checks, real devices, and screen readers, then fix each issue with guidance tied to the rule it fails.

Check for compliance with

WCAGADAEAAAODA

Trusted by 3M+ users globally at

+Read case study

Every Accessibility Check, One Dashboard

Automated checks in your test suites, native app scans on real devices, scheduled monitoring, and a Chrome extension for on-demand audits.

Start free with Google

Automation in CI

Catch Violations Inside Your Test Suites

Run WCAG checks inside Selenium, Playwright, Cypress, and Appium tests, with results on every CI build.

Explore Accessibility Automation

What's automated?

Scan hooks or autoscan

Selenium, Playwright, Cypress, Appium

WCAG version per suite

Annotated screenshots

Native App Scanner

WCAG Coverage for Native iOS and Android

Upload your build, open it on a real Android or iOS device, and scan each screen as you walk through key flows, with no Appium code.

Explore App Accessibility Testing

Scan Android and iOS screens without Appium code
Checks labels, contrast, touch targets, text size
TalkBack and VoiceOver on real hardware

Schedule Scans

Stop Regressions Between Releases

Schedule recurring WCAG scans across your sitemap and get alerted when a page regresses.

Explore Accessibility Scheduling

Run on demand, or daily, weekly, or monthly at the day, time, and timezone you pick.

Paste URLs, upload a CSV, or fetch a sitemap. New sitemap pages are picked up on every run.

Scan pages behind a login with saved credentials, or reach staging through a tunnel.

Get Slack and email alerts on new violations, and export PDF or CSV reports for audits.

Accessibility DevTools

Audit Any Page From Chrome DevTools

Run full-page, partial, multi-page, workflow, and keyboard scans from a free Chrome extension, then jump from each issue to the failing element.

Explore Accessibility DevTools

Works on localhost, staging, and pages behind login
Color-coded overlays mark each failing element
Needs Review flags for issues a person must judge

Wire WCAG Checks Into Your Suite With The Accessibility Agent Skill

Point Claude Code, Cursor, or any AI coding agent at the open-source Accessibility Agent Skill to wire WCAG 2.1 checks into your test suite, no new tool to install.

Agents wire WCAG 2.1 A/AA scans into Selenium, Playwright, or Cypress in one prompt.

Appium coverage extends the same scans to native Android and iOS screens.

No agent yet? Run the same checks yourself through the Accessibility MCP Server.

Explore Accessibility Skill on GitHub

Accessibility + Selenium

JavaPython

Accessibility + Playwright

JSTS

Accessibility + Cypress

Accessibility + Appium

JavaPython

Works with all agents:

& more...

Compliance Features Built Into the Platform

Test on real devices and live screen readers, bring PDFs into scope, and tie every fix together with a single accessibility score.

Accessibility Settings on Real Devices

Test, inspect, and validate accessibility on real iOS & Android devices, from element properties to native accessibility settings.

Accessibility Web Score

Skip the lengthy reports and quantify accessibility health in a single score you can track release over release.

PDF Accessibility Scanning

Bring PDFs into your accessibility coverage so reports, forms, and statements are checked too.

Fragment Identifier

Catch section-level accessibility issues by tracking each URL fragment as a distinct entity.

Hide and Restore Issues

Hide accepted accessibility issues across current or future scans, and restore them in a click.

Screen Reader

Test with live TalkBack and VoiceOver on real devices to validate what your users actually hear when they navigate your app.

Compliance Coverage by Standard

Start free with Google

Most accessibility laws point back to WCAG. Scan at the level each one names and keep the scan history as evidence.

Who It Applies To

How to Test for It

WCAG 2.0, 2.1, 2.2

The international standard behind most accessibility laws

Pick the WCAG version and level in each tool's settings

ADA

US businesses, plus state and local governments

Scan at WCAG 2.1 AA, the level the ADA Title II rule names

Section 508

US federal agencies and their contractors

Scan at WCAG 2.0 AA, which the Revised 508 Standards incorporate

EAA and EN 301 549

Products and services sold in the EU

Scan at WCAG 2.1 AA, the level EN 301 549 aligns with

AODA

Ontario organizations with 50 or more employees

Scan at WCAG 2.0 AA and track conformance over time

Audit evidence

Legal, compliance, and procurement teams

Export PDF or CSV reports and keep dated scan history

LambdaTest is now TestMu AI

On January 12, 2026, LambdaTest evolved into TestMu AI, the same trusted testing cloud, upgraded for the AI era.

Now a full-stack agentic AI quality engineering cloud, it automates end-to-end testing across web, mobile, and AI apps. The platform is AI-native, with autonomous agents that plan, author, execute, analyze, and optimize tests.

Visit LambdaTest's New Home