Troy Chaplin

mikecorkum

<p><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 that ensures your images, buttons, tables, headings, galleries, and post meta fields meet WCAG (Web Content Accessibility Guidelines) requirements.</p>
<p>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 any block type or post meta field.</p>
<p>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.</p>
<p><strong>Key Features:</strong></p>
<ul>
<li><strong>Real-time Visual Feedback</strong> – See accessibility issues instantly with color-coded borders around problematic blocks and detailed error messages in the block inspector panel</li>
<li><strong>Smart Publishing Control</strong> – Prevents publication of content with critical accessibility errors while allowing warnings with user awareness</li>
<li><strong>Comprehensive Block Coverage</strong> – Built-in checks for images, buttons, tables, headings, and galleries with multiple validation rules per block type</li>
<li><strong>Post Meta Validation</strong> – Validate required post meta fields with real-time feedback, automatic post locking for errors, and seamless integration with block validation</li>
<li><strong>Advanced Heading Validation</strong> – Document-wide hierarchy checking prevents skipped heading levels and ensures proper content structure</li>
<li><strong>Intelligent URL Validation</strong> – Real TLD validation using the Public Suffix List ensures only legitimate domains are accepted</li>
<li><strong>Configurable Settings</strong> – Granular control over each check’s severity (error/warning/disabled) with an intuitive admin interface for both block and meta validation</li>
<li><strong>Issue Categorization</strong> – Clear distinction between accessibility issues and validation errors for better understanding</li>
<li><strong>Developer-Friendly API</strong> – Comprehensive hooks and filters system for registering custom accessibility checks for blocks and post meta fields</li>
<li><strong>External Plugin Support</strong> – Works seamlessly with custom blocks from third-party plugins and themes, with automatic settings page integration</li>
</ul>
<p><strong>How It Works:</strong></p>
<p>The plugin provides immediate feedback as you edit content. When accessibility issues are detected in blocks or required meta fields, they are highlighted with visual indicators and detailed messages explain how to fix the problems. Critical errors prevent publishing until resolved, while warnings allow publication with user acknowledgment.</p>
<p><strong>Built-in Accessibility Checks:</strong></p>
<ul>
<li><strong>Button Blocks</strong> – Ensures buttons have descriptive text content and valid link destinations with real URL validation</li>
<li><strong>Image Blocks</strong> – Requires alt text (unless marked decorative), validates length, prevents caption duplication, and detects non-descriptive patterns</li>
<li><strong>Table Blocks</strong> – Requires proper headers or captions for screen reader navigation</li>
<li><strong>Heading Blocks</strong> – Validates proper heading hierarchy (no skipped levels), ensures appropriate first heading level, and configurable heading level restrictions</li>
<li><strong>Gallery Blocks</strong> – Applies comprehensive image accessibility checks to all gallery items</li>
<li><strong>Post Meta Fields</strong> – Validate required custom fields with server-side and client-side validation, automatic post locking, and visual feedback in the editor</li>
</ul>
<p><strong>Perfect For:</strong></p>
<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>
<p><strong>Developer API:</strong></p>
<p>Extend the plugin with <a href="https://github.com/troychaplin/block-accessibility-checks/blob/main/docs/" rel="nofollow ugc">custom accessibility checks</a> for any block type or post meta field. The robust API includes registration functions, validation hooks, and automatic JavaScript integration. Perfect for plugin developers who want to add accessibility validation to their custom blocks and ensure required meta fields are properly validated.</p>
<h3>Getting Involved</h3>
<p>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>.</p>


Block Accessibility Checks

Configure a series of block checks to prevent WCAG accessibility errors in content.

PI Web Solution

Steve Curtis

Joseph LoPreste

<p>This software HELPS you in the process of becoming ADA Section 508 compliant by providing:</p>
<h3>Missing Alt Text Finder</h3>
<p>Easily add any Missing Alt Text, Description Text or Caption Text to all of the pictures in your Media Library and the pictures that are already published on your Pages and Posts.</p>
<h3>Contrast Ratio Checker</h3>
<p>Provides you with a Contrast Ratio Checker to make sure everything hits the minimum requirements.</p>
<h3>WCAG 2.1 Compliance Checklist</h3>
<p>A interactive WCAG 2.1 Section 508 Checklist that helps you better understand your websites accessibility issues.</p>
<h3>Automated Accessibility Audit</h3>
<p>You can activate the A11Y auditing function and run multiple accessibility tests on your website and even get suggestions on how to fix them.</p>
<h3>Resources</h3>
<p>We give you some great resources in the form of links that will help you better understand web accessibility and help your website become even more inclusive.</p>
<p>While this plugin can HELP you meet compliance requirements, you are the only one that can ensure that all requirements are met.</p>
<p>If you find this plugin useful, please rate and review it. If you have a problem with this plugin, please send me an email letting us know what issues you are having. I will address all issues in a timely fashion. Thank you!</p>
<h3>Main Features Are:</h3>
<ol>
<li>
<p>Shows you all of the pictures from either your Media Library, Posts or Pages that are missing any of the 3 types of text. (Alternative Text, Description text or Caption Text)</p>
</li>
<li>
<p>Allows you to add any missing – Alternative Text, Description Text or Caption Text to any of your pictures one at a time.</p>
</li>
<li>
<p>Allows you to add missing Alternative Text, Description Text or Caption Text to all of your pictures with just one click.</p>
</li>
<li>
<p>Helps the process of making your website ADA Section 508 Compliant become much easier. (by adding Alt Text to all pictures on your website)</p>
</li>
<li>
<p>Allows you to run a Automated A11Y Accessibility Audit so you can see where you are not compliant.</p>
</li>
<li>
<p>Provides a free Contrast Ratio Checker. This allows you to easily understand your websites contrast ratios.</p>
</li>
<li>
<p>We provide you a interactive (WCAG 2.1) Section 508 Checklist. This checklist helps you better understand the WCAG 2.1 recommendations and guidelines.</p>
</li>
<li>
<p>We offer a ton of Free Accessibility resources in the form of links that will greatly help your understanding of web accessibility.</p>
</li>
</ol>
<h3>The video below is how to use our missing alt text feature.</h3>
<span class="embed-youtube" style="text-align:center; display: block;"><iframe loading="lazy" class="youtube-player" width="560" height="315" src="https://www.youtube.com/embed/sOsi0leu4l0?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></span>
<h3>The video below is part 2 on how to use all of the new accessibility tools we added.</h3>
<span class="embed-youtube" style="text-align:center; display: block;"><iframe loading="lazy" class="youtube-player" width="560" height="315" src="https://www.youtube.com/embed/Uoh81PRE98I?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></span>
<h3>The video below is us giving our “Web Accessibility Made Easy” talk in Tampa Fl.</h3>
<span class="embed-youtube" style="text-align:center; display: block;"><iframe loading="lazy" class="youtube-player" width="560" height="315" src="https://www.youtube.com/embed/oZkaFVcnXl8?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></span>
<h3>External Services</h3>
<p>This plugin uses the following third-party services:<br />
<em>1. Incrementable.js</em><br />
Used in the contrast testing tool to allow keyboard-accessible incrementable fields.<br />
– Loaded from: <a href="https://leaverou.github.com/incrementable/incrementable.js" rel="nofollow ugc">https://leaverou.github.com/incrementable/incrementable.js</a><br />
– No user data is sent.<br />
– License: MIT License<br />
– Source: <a href="https://github.com/LeaVerou/incrementable" rel="nofollow ugc">https://github.com/LeaVerou/incrementable</a></p>
<p><em>2. Example API (Replace with actual endpoint)</em><br />
Used to send page URLs to an external server for SEO auditing (if applicable).<br />
– Endpoint: <a href="http://myserver.com/" rel="nofollow ugc">http://myserver.com/</a><br />
– Data sent: page URL<br />
– Sent only during SEO analysis execution.<br />
– If you operate this server, link your own Privacy Policy here.<br />
Example: <a href="https://yourdomain.com/privacy-policy" rel="nofollow ugc">https://yourdomain.com/privacy-policy</a></p>
<h3>Source Code</h3>
<p>This plugin includes bundled/minified JavaScript and CSS files to optimize performance. To comply with WordPress.org guidelines for human-readable code, the original, non-minified source code is included directly within the plugin under:<br />
⁠ /assets/src/ ⁠ or ⁠ /src/ ⁠</p>
<p>This includes:<br />
– Original JavaScript files before minification or bundling.<br />
– SASS/SCSS or uncompiled CSS files (if applicable).<br />
– Any build configuration files (such as ⁠ webpack.config.js ⁠ or ⁠ angular.json ⁠ if used).</p>
<p>These files are provided to ensure transparency and promote open-source collaboration.</p>
<h3>License</h3>
<p>This plugin is licensed under the GPLv2 or later. For more information, see <a href="https://www.gnu.org/licenses/gpl-3.0.html" rel="nofollow ugc">https://www.gnu.org/licenses/gpl-3.0.html</a>.</p>


Accessibility Tools & Alt Text Finder

Accessibility Tools Included: Missing Alt text finder, contrast checker, WCAG 2.1 checklist, automated testing software and a ton of free resources.

Block Accessibility Checks vs Accessibility Tools & Alt Text Finder