Image Alt Setter

Description

Image Alt Setter is a lightweight and powerful WordPress plugin that automatically sets missing image alternative text (ALT text) across your website.

ALT text is critical for website accessibility, SEO rankings, and overall content optimization. However, many WordPress websites contain hundreds or even thousands of images without proper alternative text. Manually updating them can be time-consuming and frustrating.

This plugin solves that problem instantly.

Image Alt Setter automatically detects images that do not have alternative text and assigns the image title as the ALT text. This ensures that every image on your website has meaningful alternative text without requiring manual effort.

Perfect for bloggers, agencies, WooCommerce stores, news websites, and SEO professionals.

Why ALT Text Is Important

Alternative text is essential for:

• Improving WordPress SEO
• Helping search engines understand your images
• Increasing visibility in Google Image Search
• Enhancing website accessibility for screen readers
• Improving user experience for visually impaired visitors
• Supporting WCAG accessibility guidelines

Search engines rely heavily on ALT text to understand image context. Missing ALT attributes can negatively affect your SEO performance and accessibility score.

Key Features

Automatic ALT Text Assignment

Automatically sets alternative text for images that do not already have ALT text.

Uses Image Title as ALT Text

The plugin intelligently uses the image title to generate relevant and descriptive alternative text.

Improves SEO Performance

Optimized images help boost:
• Search rankings
• Image search visibility
• Organic traffic
• Content relevance

Accessibility Friendly

Ensures your website meets accessibility best practices by preventing empty ALT attributes.

Works with Existing Media Library

Applies to images already uploaded in your WordPress Media Library.

Lightweight & Fast

No heavy scripts. No unnecessary database load. Designed for performance and compatibility.

Compatible with All Themes

Works seamlessly with:
• Gutenberg Block Editor
• Classic Editor
• Page builders
• WooCommerce
• Popular SEO plugins

Who Should Use This Plugin?

• Bloggers and content creators
• SEO specialists
• WordPress agencies
• eCommerce store owners
• Affiliate marketers
• Website owners focused on accessibility compliance

If your website contains images without ALT text, this plugin is a must-have.

How It Works

  1. Install and activate the plugin.
  2. The plugin automatically checks images.
  3. If ALT text is missing, it assigns the image title as alternative text.
  4. Done — no manual configuration required.

SEO Benefits of Image Alt Setter

• Prevents missing ALT attributes
• Improves on-page SEO
• Enhances image indexing
• Supports accessibility standards
• Strengthens overall content optimization

Optimized images contribute to higher search engine visibility and better website performance.

Image Alt Setter is the simplest way to ensure every image on your WordPress website has proper alternative text — automatically.

Install now and improve your website’s SEO and accessibility in seconds.

Installation

Follow the instructions to install this plugin on your WordPress website.

Ex.

  1. Upload to the wp-content/plugins/ directory.
  2. Activate the plugin through the \’Plugins\’ menu in WordPress.
  3. Enjoy!

Reviews

May 30, 2024
Un petit plugin étonnant, tout simple qui ne nécessite aucun réglage et ajoute des textes alt aux images qui n’en ont pas grâce au titre. C’est tout ce dont j’avais besoin, ce plugin m’a fait gagner un temps fou. Merci au dévelopeur.
Read all 1 review

Contributors & Developers

“Image Alt Setter” is open source software. The following people have contributed to this plugin.

Contributors

Translate “Image Alt Setter” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.

Changelog

1.4 – Feb 25th, 2026

  • Donate Link Added.

1.3 – Dec 22th, 2025

  • Tested with the latest WordPress version 6.9.

1.2 – Mar 12th, 2025

  • Tested with the latest WordPress version 6.7.2.

1.1 – Jun 13th, 2024

  • Tested with the latest WordPress version 6.5.

1.0 – Sep 25th, 2023

  • First release