AI Alt Text Generator Plugin for WordPress

In WordPress, you can add alt text manually by editing each image in the Media Library and filling in the "Alternative Text" field. However, for sites with hundreds or thousands of images, this is impractical. Alt Audit automates this process: install the plugin, scan your media library to find images missing alt text, then generate AI-powered descriptions in bulk. The plugin writes the alt text directly to WordPress's database, so it appears everywhere the image is used — posts, pages, and widgets.

Yes. Alt Audit offers a free forever tier that includes 25 AI credits per month — no credit card required. Each credit generates alt text for one image. The rule-based fallback system also generates basic alt text from filenames at no cost. For sites that need more volume, paid plans start at $7/month for 100 credits, scaling up to $59/month for 5,000 credits. One-time credit packs are also available.

Yes. Alt Audit scans your entire WordPress media library, which includes WooCommerce product images, category thumbnails, and gallery images. The AI analyzes each product image and generates descriptive alt text that includes product details — helping both accessibility and product image SEO. For e-commerce sites, properly described product images can appear in Google Shopping results and image packs.

No. Alt Audit only runs when you actively use it in the WordPress admin dashboard. It does not add any scripts, stylesheets, or database queries to your frontend. The alt text generation happens via API calls to our server, so the processing load is on our infrastructure, not yours. Your site's page load speed and Core Web Vitals are completely unaffected.

Alt Audit uses Google Gemini AI, which achieves high accuracy in describing image content including objects, people, text, colors, and spatial relationships. The AI also considers the surrounding page context to generate relevant descriptions. However, we always recommend reviewing AI-generated alt text before applying it — the plugin lets you preview and edit every description before saving. For sensitive or complex images, human review ensures the highest quality.

Yes. Missing alt text is a violation of WCAG 2.2 Success Criterion 1.1.1 (Non-text Content), which is the most common accessibility failure found by automated testing tools. Alt Audit helps you identify and fix these violations by scanning for missing alt text and generating WCAG-compliant descriptions. While the plugin addresses the image alt text requirement specifically, full WCAG compliance requires additional checks across your entire site.