Troy Chaplin

mikecorkum

<a href="https://blockaccessibilitychecks.com/" rel="nofollow ugc">Block Accessibility Checks</a> is a comprehensive WordPress plugin that proactively prevents accessibility issues in your content before they reach your audience. Designed for the Gutenberg block editor, it provides real-time validation with a three-tier system that ensures your blocks, post meta fields, and overall document structure meet WCAG (Web Content Accessibility Guidelines) requirements.
Unlike reactive accessibility tools that scan published content, this plugin catches problems during the editing process—giving immediate visual feedback and preventing publication of content with critical accessibility errors. Content creators get clear guidance on what needs fixing, while developers can extend the system with custom checks for blocks, meta fields, and editor-level validation.
Whether you’re a content creator ensuring your posts are accessible, a developer building accessible blocks, or an organization maintaining compliance standards, Block Accessibility Checks provides the tools you need to create inclusive content effortlessly.
Features for Content Creators & Editors:
<ul>
<li>Real-time Visual Feedback – See accessibility issues instantly with color-coded borders (red for errors, yellow for warnings) around problematic blocks and detailed error messages in the block inspector panel</li>
<li>Smart Publishing Control – Critical accessibility errors prevent publishing until resolved, while warnings allow publication with user awareness</li>
<li>Comprehensive Block Coverage – Built-in validation for images, buttons, tables, headings, and galleries with clear guidance on how to fix issues</li>
<li>Document-Wide Validation – Advanced heading hierarchy checking prevents skipped heading levels and ensures proper content structure across your entire post</li>
<li>Title Validation – Ensures posts and pages have a title set for accessibility and SEO, validates in real-time as you type</li>
<li>Intelligent URL Validation – Real TLD validation using the Public Suffix List ensures only legitimate domains are accepted in button links</li>
<li>Configurable Settings – Control which checks are errors (prevent publishing), warnings (allow with notice), or disabled through an intuitive admin interface</li>
<li>Grouped Error Display – All accessibility issues shown at once in organized groups, eliminating the “fix one, see another” frustration</li>
<li>Works Everywhere – Validation runs in both the post editor and site editor (templates/template parts) with separate configurable settings</li>
</ul>
Features for Developers & Plugin Authors:
<ul>
<li>Three-Tier Validation API – Register custom checks for block attributes, post meta fields, and editor-level validation using comprehensive hooks and filters</li>
<li>JavaScript-Only Validation – All validation logic runs in JavaScript for real-time editor feedback without server round-trips</li>
<li>Automatic Settings Integration – External plugins automatically get their own settings pages under the Block Checks menu</li>
<li>External Plugin Support – Works seamlessly with custom blocks from third-party plugins and themes</li>
<li>Extensive Hook System – 20+ action and filter hooks for complete customization of registration, validation, and display behavior</li>
<li>Well-Documented API – Complete developer documentation with quick start guides and working code examples</li>
</ul>
How It Works:
The plugin provides immediate feedback as you edit content through a sophisticated three-tier validation system:
<ol>
<li>Block Validation – Validates individual block attributes in real-time as you type and edit</li>
<li>Meta Field Validation – Checks required post meta fields with automatic post locking when validation fails</li>
<li>Editor-Level Validation – Validates document-wide concerns like heading hierarchy that span across multiple blocks</li>
</ol>
When accessibility issues are detected, they are highlighted with visual indicators (red for errors, yellow for warnings) and detailed messages explain how to fix the problems. Critical errors prevent publishing until resolved, while warnings allow publication with user acknowledgment.
Built-in Accessibility Checks:
<ul>
<li>Button Blocks – Ensures buttons have descriptive text content and validates link destinations using real TLD validation (Public Suffix List)</li>
<li>Image Blocks – Requires alt text (unless marked decorative), validates alt text length (warns if exceeding 125 characters), prevents caption duplication, and detects non-descriptive patterns like “image of” or “photo123”</li>
<li>Table Blocks – Requires proper headers or captions for screen reader navigation</li>
<li>Heading Blocks – Validates proper heading hierarchy across entire document (prevents skipped levels), ensures appropriate first heading level (H2 recommended, H1 allowed with warnings), and provides configurable heading level restrictions (H1, H5, H6 can be disabled)</li>
<li>Gallery Blocks – Applies comprehensive image accessibility checks to all gallery items (alt text, length, patterns, caption duplication)</li>
<li>Post & Page Title Validation – Ensures posts and pages have a title set for accessibility and SEO, validates in real-time as users type, prevents publishing content without a title, configurable independently for posts and pages</li>
<li>Post Meta Fields – Validate required custom fields with real-time validation, automatic post locking for errors, and seamless integration with block validation system</li>
</ul>
Perfect For:
<ul>
<li>Government websites requiring WCAG compliance</li>
<li>Educational institutions with accessibility mandates</li>
<li>Businesses committed to inclusive web content</li>
<li>Developers building accessible WordPress themes and plugins</li>
<li>Content teams who want accessibility guidance built into their workflow</li>
</ul>
Developer Resources:
Extend the plugin with <a href="https://github.com/troychaplin/block-accessibility-checks/blob/main/docs/" rel="nofollow ugc">custom accessibility checks</a> using the comprehensive validation API. See the complete <a href="https://github.com/troychaplin/block-accessibility-checks/blob/main/docs/" rel="nofollow ugc">developer documentation</a> for quick start guides, API reference, code examples, and a <a href="https://github.com/troychaplin/block-check-integration-example" rel="nofollow ugc">working example plugin</a>.
<h3>Getting Involved</h3>
If you would like to get involved and contribute to the development of this plugin or view it’s source code you can find more information in the <a href="https://github.com/troychaplin/block-accessibility-checks" rel="nofollow ugc">plugins GitHub repo</a>.

Block Accessibility Checks

Prevent WCAG accessibility errors in your content with real-time validation for blocks, meta fields, and document structure.

WebToffee

FluxPress

Accessibility Tool kit is a powerful WordPress accessibility plugin that helps make your entire WordPress site compliant with a11y standards, including WCAG 2.1 level A and AA, Section 508, and ARIA guidelines.
The built-in accessibility checker scans your WordPress website and detects common accessibility issues, from missing labels to improper heading structure and keyboard navigation traps. The plugin also provides fixes for the most common issues, helping you resolve them quickly without needing to edit code manually.
Accessibility Toolkit is ideal for site administrators, developers, and agencies seeking to create more inclusive and user-friendly websites.
See our detailed <a href="https://www.webyes.com/documentation/wordpress-accessibility-toolkit-plugin-setup/" rel="nofollow ugc">guide to set up the WordPress Accessibility tool</a>.
Disclaimer: Accessibility Toolkit helps identify and address many common accessibility issues. However, it does not guarantee complete compliance with WCAG, ADA, or other accessibility laws and regulations. Additionally, some requirements, such as writing accurate image alt text, ensuring link purpose clarity, and maintaining proper heading/content hierarchy, still require manual review and human judgment.
For full legal compliance, we recommend conducting a comprehensive accessibility audit and remediation process.
Watch this video to learn how the plugin works
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/WQU5cda7sO0?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
<h3>More than an Accessibility Widget or an Overlay Widget</h3>
Accessibility Tool Kit is not an accessibility widget or an overlay. The plugin aims to remediate accessibility issues and fix barriers at the code level without compromising the performance of the website. 
The plugin does not add JavaScript to modify how people with disabilities and users of assistive technologies interact with your website. Instead, this web accessibility WordPress plugin helps you:
<ul>
<li>Improve WordPress accessibility compliance without needing to code</li>
<li>Strengthen screen reader accessibility with better markup and ARIA attributes</li>
<li>Ensure more accessible links and forms sitewide</li>
<li>Make your site usable for keyboard-only navigation</li>
<li>Provide mobile zoom and readability enhancements for on-the-go visitors</li>
<li>Show commitment to inclusivity, build user trust, and support legal compliance with an accessibility statement.</li>
<li>Test website accessibility and give more control to users on how they choose to view the website with Accessibility Toolbar.</li>
</ul>
Accessibility Tool Kit, coupled with accessibility tester and validator tools like <a href="https://www.webyes.com/accessibility-checker/" rel="nofollow ugc">WebYes</a>, can help identify accessibility issues and provide guidance on how to fix them.
<h3>Accessibility Tool Kit Features for your WordPress Web Accessibility Goals</h3>
Website accessibility is crucial because around 15% of the world’s population, approximately 1 billion people, live with some form of disability. Ensuring your website is accessible and compliant with standards like WCAG (Web Content Accessibility Guidelines) level A, AA, and AAA, and legal frameworks such as the ADA (Americans with Disabilities Act), Section 508 of the Rehabilitation Act, and the EAA (European Accessibility Act) creates an inclusive experience for people with diverse needs.
Below are the core features of the plugin that will help you reach your WordPress website accessibility goals:
<ul>
<li>Accessibility Checker – launches an admin-only, backend-initiated audit, allowing you to select any public page or URL and scan it from the dashboard.</li>
<li>Issue Fixes – dynamically add code-level fixes to your website.</li>
<li>Accessibility toolbar – to help users with disability make necessary adjustments on your website to meet their unique accessibility needs.</li>
<li>Accessibility Statement Generator – easily generate and add an accessibility statement to your website per various laws, like the European Accessibility Act (EAA) or the Americans with Disabilities Act (ADA).</li>
</ul>
<h3>Accessibility Checker for WordPress</h3>
The Accessibility Checker feature lets WordPress administrators scan any live page for accessibility issues directly from the dashboard. It evaluates the page in both desktop and mobile viewports and surfaces clear, actionable guidance to help remediate the detected issues.
Key Highlights:
<ul>
<li>Launches directly from the admin dashboard. Administrators select a page and run the scan from there.</li>
<li>Detects WCAG violations such as missing alt text, low color contrast, improper heading hierarchy, and unlabeled form fields.</li>
<li>Provides clear findings and recommendations so you can understand where improvements are needed.</li>
<li>Displays a summary of detected issues in an easy-to-read panel for quick reference.</li>
<li>Loads scanner assets only on demand for admins, so the front-end remains lightweight for all visitors.</li>
</ul>
<h3>Dynamic Issue Fixes</h3>
This includes the following features that guide you towards the first steps in accessibility remediation.
<ul>
<li>Improved readability – ensures screen readers interpret text and language correctly.</li>
<li>Logical keyboard navigation – maintains natural tab flow and focus throughout the page.</li>
<li>Skip to content – lets users jump straight to the main content using the keyboard.</li>
<li>Visible focus indicators– highlight the active element clearly during keyboard use.</li>
<li>Clear and meaningful labels – adds helpful names to elements for better screen reader support.</li>
<li>Mobile-friendly zoom – allows users to zoom on mobile without breaking the layout.</li>
<li>Accessible links – make links stand out clearly and visibly without relying on color.</li>
<li>Predictable link behaviour – avoids unexpected new tabs or windows.</li>
<li>Link opening notices – alerts users when a link opens in a new tab or window.</li>
<li>Labelled form fields – ensures every input field has a proper label for accessibility.</li>
<li>Accessible search fields – adds clear labels to search bars for easier use.</li>
</ul>
<h3>Accessibility Toolbar</h3>
Accessibility Toolbar is an interactive widget designed to make your site more inclusive and user-friendly.
With this toolbar, website admins can give visitors more control over their browsing experience. The toolbar appears as a small, customizable widget on the front end of your website and offers several helpful tools:
<ul>
<li>Adjustable Font Size: Users can increase or decrease text size across your site for better readability.</li>
<li>Color Contrast Options: Switch between different color contrast modes to improve visibility and accessibility. This will also help you quickly test how the site performs under different visual conditions, particularly for users with low vision or color blindness.</li>
<li>Greyscale Mode: View your website in greyscale to test visual contrast and ensure elements are color independent.</li>
</ul>
Admins can use this feature to let visitors personalize how they view content on their website.
<h3>Accessibility Statement Generator</h3>
An accessibility statement is a public declaration of your website’s commitment to accessibility. It informs visitors about the steps you have taken to make your content accessible and what measures are in place to support users with disabilities.
With this feature, you can:
<ul>
<li>Quickly create and publish an accessibility statement on your site</li>
<li>Demonstrate transparency and inclusivity to your audience</li>
<li>Show compliance with legal frameworks like the ADA, Section 508, and the European Accessibility Act (EAA)</li>
<li>Build trust with users by clearly communicating your accessibility efforts</li>
</ul>
Publishing an accessibility statement not only improves user confidence but also helps reduce the risk of legal complaints by showing that you are actively working toward compliance.
<h3>Accessibility Is a Right, Not a Bonus</h3>
Accessibility helps ensure your website is welcoming and usable for everyone, including people with disabilities. This WP accessibility toolkit helps you improve accessibility with practical tools, while supporting the ongoing work of review, testing, and refinement.

Accessibility Tool Kit: WP Accessibility checker plugin for WCAG, Section 508, ADA, EAA Compliance

Powerful WordPress accessibility checker plugin to detect and fix common accessibility issues, and support WCAG, ADA, EAA, and Section 508 compliance.

Block Accessibility Checks vs Accessibility Tool Kit: WP Accessibility checker plugin for WCAG, Section 508, ADA, EAA Compliance