The problem with missing alt text
You've built a beautiful website. Your design is crisp, your copy is persuasive, and your funnel is optimized. But there is a silent problem in your HTML, dragging down your search rankings and exposing you to legal risk: missing alt text.
If you are manually writing alt text, you are fighting a losing battle. Image metadata shouldn't be an afterthought. It's time to automate it.
The Time Drain
Writing a descriptive, WCAG-compliant tag takes about 2 minutes per image. A blog with 500 images means 16 hours of mindless data entry.
The SEO Black Hole
Google's crawlers cannot see your images. Without alt text, your images are empty pixels. You are giving up ranking spots in Google Images.
The Compliance Risk
If a screen reader can't describe your image, you aren't just alienating users; you are exposing yourself to ADA non-compliance lawsuits.
One line of code. Every image covered.
Universal Platform Compatibility
Most SEO tools give you "homework" — long lists of missing tags that you have to fix manually. InstantAlt is different. We don't give you a list; we give you a solution.
<head>
<title>Your Website</title>
<script src="https://ujs.alttext.ai/alttextai-ujs.js?site-key=8654091021"></script>
</head>
<body>
<img src="image.jpg" alt="A professional workspace with laptop displaying quarterly analytics dashboard">
</body>We have reduced the complexity of computer vision and neural networks to a single, copy-paste script. It works on any website: WordPress, Webflow, Wix, Squarespace, custom HTML, React, or pure PHP.
How it works
Three steps. Under 60 seconds. No developer required.
Claim your site
Log in to your AltText.ai dashboard and click "New Site." Enter your website's URL. Our system prepares a unique container for your domain.
Copy the snippet
We generate a single line of JavaScript. Lightweight, secure, and designed to load asynchronously so it never slows your site.
<script src="...?site-key=abc123"></script>
Paste and publish
Paste that one line into your website's <head> or footer. That's it. The moment your page loads, InstantAlt scans for images missing alt tags, analyzes the visual content, reads the page context, and dynamically injects a descriptive alt tag.
No complex API integrations. No developer required. No manual typing.
Managing multiple sites? Our Google Tag Manager integration lets you install once in GTM and deploy across all your websites.
Automatic JSON-LD schema
Structured data for Google Rich Results
InstantAlt now generates JSON-LD structured data alongside your alt text. Same script, same integration — just flip a switch in your site settings.
Structured data tells Google what your business is, how your content is organized, and what to show in search results. Most sites skip it because it requires a developer. InstantAlt reads your page content and generates valid schema.org markup automatically.
Rich snippets
Ratings, breadcrumbs, company info — the extras that make your Google listing stand out from every other blue link on the page.
Better search visibility
Google uses structured data to understand your pages. Sites with valid schema are eligible for enhanced search features.
Zero configuration
Enable the checkbox, and we handle the rest. Our AI reads your homepage and generates schema that matches what's actually on your site.
Supported schema types
- Organization — name, logo, social profiles
- WebSite — site name, URL, search config
- Article — headlines, authors, dates
- BreadcrumbList — navigation hierarchy
- Person — portfolios, personal sites
- More types coming soon
Why AltText.ai
Context-aware AI that reads your page, not just your pixels.
Context over pixels: we don't just "see," we "read"
Generic AI tools look at a photo of a running shoe and tag it: "A shoe on a white background." Technically true, but useless for SEO.
InstantAlt is built on a context-aware engine. It analyzes the surrounding text, headers, and page title to understand relevance.
Generic AI
"A laptop on a desk."
AltText.ai
"A professional using SaaS accounting software on a laptop to demonstrate productivity workflow."
Set it and forget it
Once you install the InstantAlt snippet, your maintenance work drops to zero.
- New blog post?
- We tag the images automatically.
- New product launch?
- We describe the product photos instantly.
- Legacy content?
- We retroactively fix every missing tag in your archive.
We bridge the gap between visual recognition and topical authority, ensuring your images rank for the keywords that actually drive business revenue.
The benefits
What changes when every image on your site has optimized alt text.
SEO rankings that grow
A page with 100% optimized image metadata signals higher quality than a page with empty tags. Our instant alt text generator helps Google index your content more accurately, leading to a direct boost in organic traffic.
WCAG compliance, built in
InstantAlt ensures screen reader users get a rich, descriptive experience. We generate text that complies with WCAG 2.1 standards, protecting your brand reputation and legal standing. Learn more about accessibility compliance.
Fast implementation
You don't need to hire a developer or wait for an IT ticket. If you know how to copy and paste, you are qualified to use InstantAlt. It is the fastest route from zero optimization to full coverage.
Universal compatibility
Because InstantAlt runs in the browser, it is platform-agnostic. Whether you are running a custom-coded React app, a 10-year-old PHP site, or a modern JAMstack landing page, our script works. See all CMS integrations.
How InstantAlt compares
There are other tools out there. Here is why InstantAlt is different.
| InstantAlt | Generic tools | Manual writing | |
|---|---|---|---|
| Integration | 1 line of code | API coding required | N/A |
| Context awareness | Reads page context | Image only | Human judgment |
| Speed | Real-time | Batch processing | ~2 min per image |
| SEO impact | Keyword-focused | Generic descriptions | Variable |
| Cost | < $0.02 / image | API fees add up | $20+/hour labor |
Unlike competitors who force you to upload images to their platform, InstantAlt lives on your site. It works where your content lives.
Simple, Transparent Pricing
Annual plans include rollover credits. Pick the tier that matches your image volume.
Bronze
Perfect for personal blogs and portfolios
$49/year
1,200 credits (4¢ per image)
View Bronze planSilver
Growing websites and small businesses
$189/year
6,000 credits (3¢ per image)
View Silver planGold
E-commerce stores and content teams
$489/year
24,000 credits (2¢ per image)
View Gold planPlatinum
Enterprise publishers and platforms
$2199/year
120,000 credits (<2¢ per image)
View Platinum planNeed more? Contact us for enterprise pricing.
Trusted by 85,000+ customers
From solo developers to enterprise teams.
"Solved a massive headache instantly"
"I have a custom-built documentation site with thousands of screenshots. Manually tagging them was impossible. I pasted the InstantAlt script, and every single image had a perfect description."
"10/10 for speed and accuracy"
"The API works great and is very quick. I processed over 200 images in less than 5 minutes and the alt text was exceptionally accurate. A great tool."
"A profit multiplier for our agency"
"We manage over 40 client websites, and accessibility compliance was our biggest bottleneck. With InstantAlt, we drop the script in the footer and the site is compliant before we finish our coffee."
85,000+
Customers
1M+
Brands served
100M+
Images processed
4.8/5
Average rating
FAQ
-
An instant alt text generator is a smart automation tool that uses Artificial Intelligence to scan your website for images without descriptions. It automatically writes and inserts descriptive, SEO-friendly text into the "alt" tag of your HTML, ensuring search engines and screen readers can understand your visuals.
-
Absolutely not. If you can copy text from an email and paste it into a document, you can use InstantAlt. We provide the code; you just place it on your site. No coding knowledge, no developer required.
-
No. The InstantAlt script is designed to run asynchronously. This means your website loads its content first, and our script runs quietly in the background without blocking the user experience. Your Core Web Vitals remain green. The script is only 2kb - incredibly lightweight.
-
Yes! You retain full editorial control. If you ever want to tweak a description to fit a specific brand voice, you can do so easily through your dashboard, and the changes will reflect on your site immediately.
-
Yes. The script is dynamic. Any time a new image appears on your page that lacks alt text, InstantAlt will detect it and generate a description on the fly. It's truly "set it and forget it."
-
It's near-instant. The AI analyzes and returns a description in milliseconds, ensuring your users never experience a delay. Google and other search engines can index the alt text immediately.
-
InstantAlt works with any website platform including WordPress, Wix, Webflow, Squarespace, Shopify, custom HTML sites, React applications, and more. If you can add a script tag, InstantAlt will work.
-
Manual writing takes about 2 minutes per image. InstantAlt generates alt text in milliseconds with context-aware AI that considers your page content. For a site with 500 images, you're saving 16+ hours of work while getting more SEO-optimized, consistent results.
-
JSON-LD is a structured data format that tells Google about your business, content, and site structure. InstantAlt can automatically generate valid schema.org JSON-LD by reading your homepage content. Just enable the checkbox in your site settings — we handle Organization, WebSite, Article, BreadcrumbList, and Person schema types. This makes your site eligible for Google Rich Results like knowledge panels and enhanced search listings.
Nothing found.
If you can't find what you're looking for, please contact our customer support team.
Start with 25 free images.
One script. Every image on your site, optimized. No credit card required.
Related solutions
AI Visibility
Make your images visible to ChatGPT, Perplexity, and AI search.
Bulk Processing
Process thousands of images at once with our API or CSV upload.
WordPress Plugin
Automatic alt text generation for your WordPress media library.
Accessibility Compliance
Generate WCAG 2.1 AA compliant alt text for screen readers.
Trusted by the World's Leading Digital Brands
Join over 1,000,000 brands using our engine to power their visual SEO strategies.