Essential Section 508 Testing Tools (Updated for 2026)

Section 508 is an integral part of web accessibility, so if you manage a website, it’s something you need to be aware of.

Online accessibility goes beyond just web pages, which is where Section 508 comes into play.

Before we get into the Section 508 testing tools you can use to check your PDFs, Word documents, web pages, and screen reader compatibility, let’s do a quick recap of the law, where it stands today, and how it applies to your business.

What Section 508 Means for Your Business

Section 508 of the Rehabilitation Act applies to federal agencies and required them to produce, maintain, and use Information and Communication Technology (ICT) that’s accessible to everyone, including those living with disabilities.

This ensures that federal employees with disabilities are able to carry out their duties on accessible devices and equipment, engage in online training, and access internal websites. The same applies to anyone applying for a job with the federal government or anyone using an agency website to get information.

ICT refers to any systems or equipment used to generate, convert, or access data and general information. Some examples include:

• Mobile devices
• Internet websites
• PDF documents
• Online training
• Webinars
• Remote access tools
• Support control centers
• Software and operating systems

What’s important to note is that Section 508 isn’t limited to federal agencies alone. It also applies to any contractor or vendor that sells ICT products or services into the federal government.

If your business does or wants to do business with a federal agency, you’ll typically need to provide a Voluntary Product Accessibility Template (VPAT) demonstrating how your product conforms to the required accessibility standards. Showing up to a procurement process without one is one of the most common (and costly) ways businesses lose federal contracts.

Where Section 508 Stands in 2026

Section 508 was significantly updated by the 2017/2018 ICT Refresh, which replaced the law’s original, standalone technical criteria with direct alignment to the Web Content Accessibility Guidelines (WCAG) 2.0 Level AA.

That refresh is still the official legal baseline today, though, in practice, many federal agencies now expect vendors to meet WCAG 2.1 AA, and WCAG 2.2 is increasingly used as the benchmark for new procurement.

A few things worth knowing about where things stand right now:

• Federal conformance is getting worse, not better. The General Services Administration’s most recent governmentwide Section 508 assessment found federal agency conformance scoring 1.74 out of 5, which is the lowest ever recorded, and a decline from the year before.
• There’s an active push to strengthen the law. The proposed Section 508 Refresh Act, backed by Senators Tammy Duckworth, Bob Casey, John Fetterman, and Ron Wyden, would add new requirements for federal agencies and contractors, partly in response to findings that government sites have some of the highest rates of basic accessibility violations (including keyboard-navigation failures) of any sector.
• 508 compliance is baked into procurement law. Under the Federal Acquisition Regulation (FAR 39.2), federal contracts involving ICT must include Section 508 compliance requirements. This is where most non-compliance actually bites: a procurement officer asks for a VPAT, the vendor doesn’t have one, and the deal stalls, well before anything reaches a courtroom.
• 508 and ADA are converging, but they’re not the same law. Section 508 applies specifically to federal agencies and their vendors, while the ADA applies to public and private entities more broadly. The DOJ’s 2024 Title II final rule requiring WCAG 2.1 AA for all state and local government websites has pushed the two standards closer together and raised general awareness of 508-style obligations even outside the federal contracting world.

Section 508 Testing Options

There are a few ways that you can test for 508 compliance, including:

Manual testing

This requires you to manually check any documents and web pages in a consistent and repeatable manner according to Section 508 requirements. As you might imagine, this is a more time-intensive testing option, but it’s the only way to reliably catch issues like whether alt text is actually meaningful, or whether a screen reader experience makes logical sense.

Automated testing

With the help of automated Section 508 testing tools, you can test your website and documents without the need for much manual intervention, speeding up the compliance process. It’s worth knowing upfront that automated tools typically only catch a portion of WCAG success criteria because things like logical reading order, meaningful alt text, and genuine usability for assistive technology users still require a human eye.

Hybrid testing

Businesses that opt for hybrid testing combine both manual and automated testing to comply with Section 508 requirements. This is the approach most accessibility professionals recommend: automated tools for speed and coverage across a large site, manual review for the issues that only a human (ideally one who uses assistive technology) can catch.

Since automated testing is the fastest and easiest way to get started on 508 compliance, we’ll focus the rest of this article on that category of tools, while flagging where manual or expert review is genuinely necessary.

The Top Section 508 Testing Tools

Section 508 Testing Tools for the Web

Your web pages are probably the most important element to check if you want to meet Section 508 compliance requirements. Fortunately, there are a number of excellent tools you can use to scan your website and generate accessibility reports.

ACE™ Scanner

Our own automated testing platform, ACE™ Scanner tests websites against WCAG 2.2, ADA, Section 508, the EAA, and EN 301 549 in a single scan. Rather than handing you a raw list of technical violations, it runs every issue through the proprietary ACE™ Impact Classification system, flagging each one as Legal Risk, User Impact, or Best Practice, so you know what to fix first instead of guessing.

It also groups recurring issues that stem from the same shared component (like a navigation bar or button template) into a single fixable pattern, which typically cuts the total remediation workload by 50–70%. Scans can run automatically on a schedule, cover authenticated or staging pages, and export to PDF or Excel for stakeholders and auditors, making it a solid option for teams that need ongoing 508 monitoring rather than a one-off check.

BrowserStack

When using BrowserStack to test for Section 508 compliance, teams can choose the WCAG version and conformance level, including WCAG 2.2.

Recent additions worth knowing about, include:

• Accessibility DevTools (launched January 2026), which brings real-time accessibility linting directly into IDEs like VS Code, IntelliJ, and Android Studio, so developers catch issues before code ever reaches CI.
• An AI-powered issue-detection agent (part of BrowserStack’s Spectra™ Rule Engine) that automatically flags problems and suggests fixes.
• Real device screen reader testing with VoiceOver, NVDA, and TalkBack, useful for screen reader compatibility checks.
• A PDF accessibility scanner, extending BrowserStack’s usefulness beyond just web pages.

Once a scan runs, issues are grouped by the WCAG guideline they violate, which makes VPAT report creation considerably easier.

WAVE

Created by WebAIM, WAVE has been a trusted free accessibility testing tool since 2001 and remains one of the most widely used starting points for 508 testing today.

Rather than handing back an abstract, code-level report, WAVE overlays icons and indicators directly onto the live page, so you can see exactly where an issue sits, which is especially useful for teams that are new to accessibility. It’s available as a free browser extension for Chrome, Firefox, and Edge, as well as an online checker at wave.webaim.org for quick one-off scans.

For teams that need to test at scale, WAVE also offers a subscription API and a stand-alone testing engine that can be built into CI pipelines to collect accessibility data across many pages at once.

Lighthouse

Lighthouse is a free, open-source auditing tool built into Chrome DevTools, and it’s often the very first accessibility check a developer ever runs simply because it’s already sitting there with no installation required.

Open the Lighthouse panel, select the Accessibility category, and it runs a set of automated checks before rolling the results up into a single 0–100 accessibility score alongside its performance, SEO, and best-practices audits. Under the hood, Lighthouse’s accessibility checks run on Deque’s open-source axe-core engine. However, it only runs a subset of axe-core’s full rule set, so it will occasionally miss issues that a dedicated axe-core tool would catch.

For teams building 508 compliance into their development workflow, Lighthouse CI can also be wired into build pipelines so a deployment fails automatically if the accessibility score drops below a set threshold.

axe DevTools by Deque

axe DevTools is a developer-first, browser-based extension built on the open-source axe-core engine, the same engine that powers Lighthouse’s accessibility checks and parts of BrowserStack’s own scanner.

It integrates directly into Chrome and Firefox dev tools for quick, in-context checks, and into CI/CD pipelines (via Node.js, Selenium, Playwright, or Cypress) for teams that want accessibility regressions caught automatically on every build. Every issue it flags comes with detailed element highlighting and clear remediation guidance, which makes it a favorite for developers who want to fix problems as they code rather than after a separate audit.

Like every automated tool on this list, it’s best paired with manual testing.

Section 508 PDF Compliance Tools

If PDFs are available on your website or you send PDFs as a form of communication, they need to be accessible to those with disabilities.

PDFs should be able to be read aloud by screen readers and tabbed through using the tab key.

AccessibilityChecker.org specializes in PDF accessibility, handling everything from simple documents to large, complex files. You can leverage our service to swiftly assess your PDF’s accessibility within 24 hours to remain compliant with ADA, WCAG, and PDF/UA standards.

Now, let’s get into some other options.

• Adobe Acrobat Pro Accessibility Checker. Not only does Adobe Acrobat Pro check the accessibility of existing PDFs, but it also makes it that much easier to create accessible documents from scratch. The tool automates many tasks and provides you with instructions on how to manually fix PDFs that are currently inaccessible.
• JAWS. JAWS can be used to test PDFs, ensuring they are accessible to visually impaired users. To achieve this, the tool uses Vocalizer Expressive and Eloquence, both multilingual speech synthesizers. JAWS is best compatible with Chrome and Edge browsers and Microsoft Office, and it only supports Windows OS.
• Tingtun Checker. A simple, but still actively maintained tool for identifying PDF accessibility issues. It’s also recommended by some government bodies internationally as a free option. Just insert the URL to the PDF (or web page) you want to check, and Tingtun evaluates it against WCAG and PDF/UA-based tests.

Section 508 Screen Reader Compliance Tools

Millions of people are living with visual impairments, including complete blindness. Chances are, a visually impaired user will encounter your website and online content at some point, which means it should be compatible with screen readers.

• VoiceOver. Developed for Apple devices, VoiceOver can be used to test whether your website, app, and online content are compatible with screen readers. Simply enable this native, pre-installed tool on an iOS or macOS device to test how well a screen reader explains your content, and whether a user can navigate your site using only the keyboard.
• NVDA. NonVisual Desktop Access (NVDA) is a free screen reader and one of the most widely used 508 compliance tools for Windows. Download NVDA to check the reading order of any web page or document, ensuring visually impaired users have full access to your content.
• TalkBack. Android’s native screen reader, TalkBack, is worth including alongside VoiceOver and NVDA. A meaningful share of assistive technology users are on Android, and testing exclusively on iOS/Windows can miss real compatibility issues.

Section 508 Word Document Compliance Tools

While Word documents aren’t used as often as PDFs for internal and external communication, these are also documents that need to be Section 508 compliant. What’s more, they’re typically the starting point for accessible PDFs.

• Accessibility Checker – MS Word. This free 508 compliance tool is already built into Microsoft Word. Before you send a Word document to employees or clients, you can check it for accessibility issues via the Check Accessibility tool under the Review tab.

Wrapping Up

If you want to avoid losing federal contracts, reduce legal risk, and provide a more inclusive experience to employees, customers, and anyone who interacts with your online assets, using Section 508 testing tools is highly recommended. Automated tools are the fastest way to get started, but given how much federal conformance has slipped in recent years, pairing them with manual review, or an expert VPAT-ready audit, is the more reliable path to genuine compliance.

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