gistmag

GistMag Alt Text Generator helps you automatically generate high-quality alternative text for images in your WordPress media library.
It uses the GistMag API to create descriptive, SEO-friendly alt text that improves accessibility for screen readers and helps search engines better understand your images.
Key features:
<ul>
<li>Auto-generate alt text on image upload</li>
<li>Generate alt text manually for individual images</li>
<li>Bulk alt text generation for existing media library images</li>
<li>Multiple modes: Short, Long, and SEO-optimized alt text</li>
<li>Works in the Media Library list and grid views</li>
<li>Usage statistics so you can track how many images you’ve processed</li>
</ul>
You will need a free GistMag account and API key to use this plugin.

GistMag Alt Text Generator

AI-powered alt text generation for your WordPress media library. Improve accessibility and SEO with high-quality alternative text for images.

neil williams

Images without alt text are a problem for accessibility (screen readers) and SEO. 
This lightweight plugin automatically adds alt attributes where they are missing:
<ul>
<li>Inside post content → uses the current post title. </li>
<li>For images loaded via <code>wp_get_attachment_image()</code> → uses the image filename (without extension). </li>
</ul>
If an image already has alt text, the plugin leaves it untouched.
No settings, no configuration — just activate and your site is more accessible.
<h3>Features</h3>
<ul>
<li>Improves accessibility by ensuring images have alt text. </li>
<li>Helps SEO by filling in descriptive alt attributes. </li>
<li>Post/page content images get the post title. </li>
<li>Template images (e.g. theme calls) get the filename. </li>
<li>Super lightweight and fast.</li>
</ul>

Auto Alt Images

Automatically fills in missing alt attributes for images using the post title or filename.

GistMag Alt Text Generator vs Auto Alt Images