Make every image accessible & AI-visible
AI-powered alt text that meets WCAG standards, boosts SEO, and makes your images visible to ChatGPT, Claude, Perplexity, and every screen reader. Install, paste your API key, done.
Input Image

Generated Alt Text
“A red fox stands alert on sandy dunes surrounded by tall dry grass, with a blurred ocean horizon in the background.”
Drop this in. Alt text done.
No plugins. No CMS lock-in. Paste one script tag into your site and every missing alt text fills itself in — WordPress, Shopify, Webflow, Squarespace, or plain HTML.
<script
src="https://altextapi.com/widget.js"
data-api-key="alt_YOUR_KEY"
data-auto="true"
></script>Works on
Any website
Setup time
30 seconds
File size
3.2 KB
50 images/month free. No credit card.
Everything you need for image accessibility
From single images to entire libraries. Your workflow, automated.
Accessibility Compliance
Every alt text meets WCAG 2.1 AA standards. Screen readers work perfectly. ADA and EAA compliant out of the box.
SEO Optimized
Descriptive, keyword-aware alt text that Google can actually index. Better rankings in Image Search and Google Lens.
AI-Ready Images
ChatGPT, Claude, Perplexity — they all read alt text. Make your images visible to the AI agents your customers use.
Bulk Generation
Got 500 images? One click generates alt text for all of them. Process your entire media library in minutes.
Auto on Upload
Every new image gets alt text automatically. Never think about it again. Set it, forget it, stay compliant.
130+ Languages
Generate alt text in your audience's language. Multilingual sites, global ecommerce, international audiences covered.
Multiple Integrations
WordPress plugin, REST API, JavaScript widget. Works with any CMS, any stack, any workflow.
Privacy First
Images processed on our infrastructure. No data stored. No training on your images. GDPR compliant.
Three steps to fully accessible images
From zero to WCAG-compliant in under 2 minutes.
Get Your API Key
Sign up in 30 seconds. Copy your free API key from the dashboard. No credit card, no commitment.
$ curl -X POST https://api.altextapi.com/api/alt-text \
-H "Content-Type: application/json" \
-H "X-API-Key: alt_xxxxxxxxxxxx" \
-d '{"image_url": "https://example.com/photo.jpg"}'Connect Your Site
Paste one script tag into your site. No plugins, no CMS lock-in. Works on WordPress, Shopify, Webflow, Squarespace, and plain HTML.
<!-- Paste this into <head> -->
<script src="https://altextapi.com/widget.js"
data-api-key="alt_YOUR_KEY"
data-auto="true"></script>Alt Text Flows Automatically
Every image gets descriptive, WCAG-compliant alt text. New uploads, existing images — all covered.
// Response
{
"alt_text": "A red fox stands on sandy dunes...",
"length": 112,
"language": "en",
"cached": false
}See how many images on your site are invisible to AI
Create a free account, then scan your site to see exactly which images ChatGPT, Claude, and screen readers can't see — plus your overall accessibility compliance score.
55%
avg images missing alt text
94.8%
sites fail accessibility
30s
to scan your site
50 images/month free. No credit card. Cancel anytime.
Simple, transparent pricing
Start free. Upgrade when you need more. 30-day money-back guarantee on all paid plans.
Works with your stack
Use the JS widget on any website, or the REST API from any language. CMS plugins coming soon.
Don't see your platform? Use the REST API or JavaScript widget for any custom integration.
Be among the first to automate your alt text
We're building the fastest, most accurate AI alt text API on the market. Start free today and join developers who are making the web more accessible.
50
Free images/month
2s
Avg response time
130+
Languages supported
WCAG AA
Compliance guaranteed
No credit card required. 50 images/month free forever.
Frequently asked questions
Everything you need to know about AlTextAPI.
Still have questions? Email us or read the docs.