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.

Aditya Dandotia

AltNinja Alt Text Generator automatically adds or updates the “alt” attribute for images.
It first tries to use the nearest heading on the page (such as H1, H2, H3, etc.) to create relevant alt text. If no suitable heading is found, the plugin can generate alt text using Google’s Gemini AI (via Google AI Studio).
You can configure the plugin in the Settings area and review generated alt text in Media > AltNinja Manager.
<h3>External Services</h3>
This plugin connects to Google’s Gemini API to generate alt text when no heading is available.
What data is sent and when: 
– During AI alt generation (manual run, bulk generate, or on upload if enabled), the plugin sends the image file (base64-encoded) and its MIME type to Google’s endpoint, along with a plain-text prompt and your selected language code if set. 
– Endpoint domain: https://generativelanguage.googleapis.com 
– No WordPress user account data or site URLs are intentionally sent, though images themselves may contain personal information depending on content.
You must create your own API key in Google AI Studio and save it in Settings.
Service provider: 
Google AI (Google AI Studio) — https://aistudio.google.com 
Terms of Service — https://ai.google.dev/terms 
Privacy Policy — https://policies.google.com/privacy

AltNinja Alt Text Generator

Automatically generates or updates image alt text using nearby headings or AI.

GistMag Alt Text Generator vs AltNinja Alt Text Generator