AltTag.io is a WordPress plugin that automatically generates SEO-optimised, accessibility-ready alt text for every image on your site. Improve search rankings, pass accessibility audits, and get cited in AI-generated answers — all without leaving WordPress.
AltTag.io runs in the background — writing optimised alt text, pushing accessibility scores up, and helping your images rank, with zero manual work on your end.
Install directly from the WordPress plugin directory. Add your API key and AltTag.io is live in under five minutes — no developer, no configuration, no friction.
Our vision model analyses each image — detecting subjects, page context, and intent — then writes alt text that is keyword-rich, descriptive, and built for accessibility and search engines.
Google indexes your images faster. Your Lighthouse accessibility score climbs. Your content starts appearing in AI-generated answers. All measurable. All automatic.
Every feature targets a measurable result — higher rankings, better accessibility scores, and more visibility in AI search results.
Missing or generic alt text is one of the most common on-page SEO gaps. AltTag.io writes keyword-targeted descriptions that Google's image index can read, crawl, and rank — pushing your images into Google Images and strengthening the topical relevance of your pages. Sites typically see faster indexing and measurable ranking gains within 30 days.
AltTag.io writes accessibility-first alt text — no redundant phrases, no missing context. Your Lighthouse accessibility score moves from failing to 98+ automatically. Serve every user equally and protect your site from compliance risk.
Agencies running AEO and GEO strategies use AltTag.io to ensure image alt text is structured for AI answer engines — so client sites appear in Google AI Overviews, Perplexity answers, and ChatGPT-cited results.
AltTag.io is built to move numbers — not just generate text. Here is what agencies and site owners see after deploying.
AltTag.io was built for agencies, business owners, ecommerce teams, and anyone responsible for SEO work who does not have time to manually write image descriptions one by one.
Instead of using external tools, copying text back into WordPress, or guessing whether the alt text is good enough, AltTag.io works directly inside your site. Upload the plugin, enter the license code you receive, and start generating optimized alt descriptions in minutes.
Get Started“AltTag.io removes one of the most repetitive SEO tasks from your workflow. It helps generate clear, useful, SEO-focused image alt descriptions directly inside WordPress, gives every image a score, and shows you how to improve it before you apply it.”
Real outcomes from teams using AltTag.io across SEO, accessibility, and AI search visibility.
We inherited a client site with 2,000 images without alt descriptions. AltTag.io bulk-processed the entire library overnight. The next Lighthouse run showed 97. We now include AltTag.io in every new client onboarding as a standard line item and bill for it accordingly.
Our product images were not being indexed at all. After deploying AltTag.io, Google Search Console started showing impressions from image search within two weeks. Six weeks later we had 28% more organic sessions — directly attributable to image search rankings.
We run accessibility score check for health sector client. AltTag.io is the only automated tool we have seen consistently increase accessibility score, screen ready alt text with no manual cleanup required. It is now part of our standard toolkit for every client.
Start free on a single site. Upgrade to Professional for AEO/GEO output, or Agency for multi-site management and white-label reporting.
Install directly from the WordPress plugin directory. AltTag.io automatically handles alt text for every image — improving your rankings, accessibility score, and AI search visibility from day one.
Free plan available · No credit card · 5-minute setup
Instant SEO-ready alt text in your WordPress media library — powered by AI.
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