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Accessibility for School Assessment

Web Accessibility Testing Tools

Pearson staff rely on a variety of tools when creating the products and content we develop. Below is a list of the tools that we rely on to ensure that our products are accessible. Please email us with any questions or support requests.

Web Accessibility Testing Tools
Tool & Info Link Developer Category Description System Requirements
Bookmarklets for Accessibility Testing Paul J. Adam Code validation Bookmarklets for Accessibility Testing use JavaScript to highlight roles, states, and properties of accessibility elements on the page. They are accessible to screen reader users and work on any browser including mobile phones. Web browser, javascript
aXe Deque Systems Code validation aXe is an open-source accessibility testing tool that runs in the web browser. Accessibility test results include a list of accessibility issues, descriptions, and snippets of the code that caused the issue. Guidelines for fixing the issue, Information about the severity of the issue and which accessibility guidelines are being violated (e.g. WCAG 2.0, Section 508, etc.) are provided as well. Chrome, Firefox
HTML_CodeSniffer Squiz Code validation Checks a HTML document and detects violations of a defined coding standard. Comes with standards that cover the three conformance levels of WCAG 2.0 and the U.S. Section 508 legislation. An auditor interface is provided by a bookmarklet to let you try out these accessibility checks on any web page. Web browser, javascript
Jim Thatcher's Favlets Jim Thatcher Code validation Bookmarklets for Accessibility Testing that uses JavaScript. They are accessible to screen reader users and work on any browser including mobile phones. Web browser, javascript
Color Contrast Analyser Paciello Contrast checker The Colour Contrast Analyser (CCA) helps you determine the legibility of text and the contrast of visual elements, such as graphical controls and visual indicators. This tool provides two useful core functionalities:
- a pass/fail assessment against WCAG 2.0 color contrast success criteria
- a simulation of certain visual conditions, including dichromatic color-blindness and cataracts, to demonstrate how your web content appears to people with less than 20/20 vision
Windows, macOS
Accessibility color wheel Giacomo Mazzocato Contrast checker A tool that helps in the choice of a color pair (text/background) to use in a web page. It simulates three kinds of color blindness and it shows the result of W3C algorithms that reveal if the colors are accessible Web browser
High Contrast Google Contrast checker High Contrast lets you browse the web with your choice of several high-contrast color filters designed to make it easier to read text. Chrome
Contrast-Finder Tanaguru Contrast checker Provides solutions for contrasts. For a given couple of color (bakcground/foreground), Contrast-Finder evaluates the contrast ratio and if it not good, provides valid colors, closed to the initial ones. Chrome
Document Accessibility Toolbar (DAT) Vision Australia Document Testing DAT is an accessibility ribbon tab for Microsoft Word that makes it quicker and easier to create accessible documents. DAT provides standard and custom build functions, including easy image alt-text, data table type, colour contrast checker and Word to HTML functions. Word, Windows
Tingtun PDF Checker Tingtun Document Testing Checks PDF documents based on WCAG 2.0. Upload or refer to online documents to generate report with detected barriers and proposed remedies. Tingtun PDF checker is an online, open source tool, used both in practical quality assurance and monitoring of national document quality.
Not to be used for PII or secure materials.
Web browser
Accessibility Scanner Google Mobile Accessibility Testing Accessibility Scanner can help Android app creators identify opportunities to improve their apps for users. It is a tool that suggests accessibility improvements for Android apps without requiring technical skills, allowing users to flag issues for other developers or to add to their own developer toolset. Android
WAVE (Web Accessibility Evaluation Tool) WebAIM Multi-functional Testing The Web Accessibility Evaluation Tool (WAVE) is a free tool from WebAIM that will help you check your site for accessibility problems. Rather than presenting you with a lengthy technical report, WAVE shows the original web page with embedded icons and indicators that reveal the accessibility of that page. Web Browser
Web Accessibility Toolbar Paciello Multi-functional Testing Developed to aid manual examination of web pages for a variety of aspects of accessibility.
The toolbar provides easy access to functionality to:
- identify components of a web page
- provide access to alternate views of page content
- facilitate the use of 3rd party online applications
(This tool is no longer in active development, try WebAIM's WAVE toolbar)
Windows Vista/7/8, Internet Explorer 9/10/11
WAVE browser toolbar WebAIM Multi-functional Testing The WAVE Chrome and Firefox extensions allows you to evaluate web content for accessibility issues directly within Chrome and Firefox browsers. Because the extension runs entirely within your web browser, no information is sent to the WAVE server. This ensures 100% private and secure accessibility reporting. The extension can check intranet, password-protected, dynamically generated, or sensitive web pages. Also, because the WAVE extension evaluates the rendered version of your page, locally displayed styles and dynamically-generated content from scripts or AJAX can be evaluated. Chrome, Firefox
Chrome’s Accessibility Developer Tools Google Accessibility Multi-functional Testing This extension will add an Accessibility audit, and an Accessibility sidebar pane in the Elements tab, to your Chrome Developer Tools. Chrome
a11yTools Extension for Safari macOS Paul J. Adam Multi-functional Testing This extension creates an a11yTools Toolbar item that displays a menu of accessibility testing tools, including Display Accessibility Tags & Attributes and other tools for web developers. Safari, macOS
FireEyes Deque Systems Multi-functional Testing FireEyes is a Firefox plugin that integrates with Firebug and allows developers, QA engineers and subject matter experts to test individual and multiple pages for Section 508 and WCAG 2.0 accessibility issues. It has built-in color contrast analysis, screen reader simulation and support for DHTML pgs. Firefox
Readability Test Juicy Studio Usability Testing Readling level algorithms can help determine how readable content is, and help determine if content is at the right level for intended audience.
Helpful for writing for cognition.
Web browser
Color Oracle Bernhard Jenny Visual Simulator Color Oracle is a free color blindness simulator for Window, Mac and Linux. It takes the guesswork out of designing for color blindness by showing in real time what people with common color vision impairments will see. Window, Mac and Linux
No Coffee -- Vision Simulator for Chrome Aaron Leventhal Visual Simulator NoCoffee can be helpful for understanding the problems faced by people with slight to extreme vision problems. Chrome
ChromeLens Nishita Wojnar Visual Simulator ChromeLens is a set of developer tools that allow developers to code websites better suited for the visually impaired. The three tools that are currently available are: Filters to experience a website; Scanners to audit; Trackers to visually show the path. Chrome

Also see the Paciello groups' Accessibility testing tools list for even more.