AI alt text generator for images

Generate high-quality, compliant alt text for images in seconds – accessible content that ranks better, automatically.

Get started for free
No credit card required
Get 25 images for free

Used by teams worldwide

Generate image alt text in seconds

Skip the manual work. AltTextLab uses AI to instantly analyze your visuals and deliver SEO-friendly, accessibility-compliant alt text that boosts performance.
Save hours of manual work
Generate alt text for hundreds of images in minutes — no need to open each file.
Improve your search ranking
Resolve missing alt tags and improve your image visibility on Google and other search engines.
Instantly meet accessibility standards
Ensure full compliance with WCAG 2.1 AA and ADA standards using smart automation.
Increase engagement & CTR
Well-optimized alt text boosts image search CTR and expands your organic reach.
Works anywhere, no code needed
Works directly in your browser with any website or CMS — no coding or technical setup required.
Supports all major image formats
Generate human-readable and fully accessible alt text for PNG, JPG, WebP, AVIF, and SVG.
Get compliant. Get discovered. Get results.

Let our AI engine write your alt tags

Our AI doesn’t just see images, it understands them in context. We’ve trained a custom vision-language model that analyzes visuals, reads embedded text, and considers surrounding page content to write accurate, natural-sounding alt text. It learns continuously from human feedback to deliver consistent, SEO-friendly results at scale.

How our alternative text generator works

Creating accessible alt text shouldn't be a headache. With AltTextLab, it's seriously this easy: upload, wait, done.
A graphic showing a beige hoodie displayed on a computer screen, connected by lines to icons representing WordPress and WooCommerce, along with an upload symbol.

1. Upload your image

Drop images right into our web app or connect through any of our integrations — whatever works for you.
A visual diagram displaying various aspects of product description. In the center, an illustration of a beige hoodie showcases connections to product name, context, objects, color, brand, writing style, and people.

2. AI reads the image

It scans the image, extracts context, and writes useful descriptions — all in seconds.
A graphic showing a beige hoodie displayed on a computer screen, connected by lines to icons representing WordPress and WooCommerce, along with an upload symbol.

3. Get your alt text

Get perfectly crafted alt text in seconds, ready to copy and paste wherever you need it. Really, it's that easy.
A grid displaying language names with corresponding flags, including English, German, French, Hebrew, Spanish, Italian, Dutch, Hindi, Polish, Portuguese, Latvian, Finnish, Chinese, Korean, Norwegian, Arabic, Greek, Ukrainian, Russian, Kazakh, Japanese, and Turkish.

Global language coverage

Supports automatic alt text creation in more than 130 languages to serve international audiences. Whether you're running a multilingual site or targeting new markets, AltTextLab ensures your images speak every language.
Try it now

What our users say

See what our users have to say about their experience with our AI alt text generator.
Jessica R.
E-commerce
"I never had time for alt text. I never had time for alt text. AltTextLab connects to my WooCommerce store and does it all for me."
Elena M.
Nonprofit
“We’ve struggled with accessibility compliance and AltTextLab made it easy and automatic. Highly recommend this tool!”
Julia R.
Small business
“It actually understands what's in images and creates spot-on descriptions. No more guessing what to write. The Chrome extension is super handy and fits right into my workflow. ”
Mark D.
Marketing Agency
"Finally I found a tool that gets alt text right without sounding generic. Huge win for our client workflows."
Sophia B.
Personal blog
“I use a ton of images, and this tool writes descriptions better than I ever could. Love how seamless it is”
Jessica R.
E-commerce
"I never had time for alt text. I never had time for alt text. AltTextLab connects to my WooCommerce store and does it all for me."
Elena M.
Nonprofit
“We’ve struggled with accessibility compliance and AltTextLab made it easy and automatic. Highly recommend this tool!”
Julia R.
Small business
“It actually understands what's in images and creates spot-on descriptions. No more guessing what to write. The Chrome extension is super handy and fits right into my workflow. ”
Mark D.
Marketing Agency
"Finally I found a tool that gets alt text right without sounding generic. Huge win for our client workflows."
Sophia B.
Personal blog
“I use a ton of images, and this tool writes descriptions better than I ever could. Love how seamless it is”
Jonathan K.
Online media
"AltTextLab made it painless to bulk-tag images across our CMS. Great accuracy for sensitive public content."
Lukas F.
University
"We use AltTextLab across our academic sites to ensure every image meets accessibility standards. It’s fast, accurate, and saves our team hours of manual work."
Daniel S.
Startup
"AltTextLab integrated perfectly with our Webflow stack. Speed, quality, and automation for several of our products.”
Amber C.
Real Estate
“The AI generates descriptions that feel human and accurate. A must-have for our listing workflows.”
Eric P.
Startup
“The AI understands images surprisingly well. Better than other tools I’ve used!”
Jonathan K.
Online media
"AltTextLab made it painless to bulk-tag images across our CMS. Great accuracy for sensitive public content."
Lukas F.
University
"We use AltTextLab across our academic sites to ensure every image meets accessibility standards. It’s fast, accurate, and saves our team hours of manual work."
Daniel S.
Startup
"AltTextLab integrated perfectly with our Webflow stack. Speed, quality, and automation for several of our products.”
Amber C.
Real Estate
“The AI generates descriptions that feel human and accurate. A must-have for our listing workflows.”
Eric P.
Startup
“The AI understands images surprisingly well. Better than other tools I’ve used!”

FAQ

Create, scale, and optimize your image accessibility.

How do I automatically generate alt text?

You can automatically generate alt text using AI-powered tools like AltTextLab. It analyzes your images, including objects, scenes, and context, and creates clear, descriptive alt text optimized for SEO and accessibility. AltTextLab supports bulk processing and integrates with various platforms, including WordPress, Shopify, WooCommerce, Webflow, and more. You can also connect it to thousands of apps via Zapier or Make, or use the Chrome extension to generate alt text on any website.

What is an example of alt text?

Good alt text paints a clear picture. For example: "A surfer riding a large wave at sunset, with water spraying behind the board." Or: "A blue denim jacket with silver buttons displayed on a white background." These descriptions provide users with the specific details they need to understand what's in the image, whether they're using a screen reader or the image won't load.

Meanwhile, generic alt text like "A surfer" or "Clothes" tells you nothing. Effective alt text gives you the details that matter for understanding what's happening in the image.

What is the free tool to create alt text?

AltTextLab is a freemium AI-powered alt text generator that lets you create alt text for up to 25 images at no cost — no credit card required. It provides a free widget and supports broad integration options, including Chrome, WordPress, Shopify, WooCommerce, Zapier, Make, and a flexible API. While other tools may offer limited free access or basic features, AltTextLab stands out with its ease of use, robust automation, and extensive platform support.

Is alt text a legal requirement?

Yes, in many countries, including the U.S. and across the EU, alt text is a legal requirement to ensure digital accessibility. In the U.S., laws like the ADA and Section 508 require websites to be accessible, which includes providing descriptive alt text for images. The EU Web Accessibility Directive and EN 301 549 impose similar rules for public sector websites and mobile apps, aligned with WCAG 2.1 standards.

Missing alt text can lead to legal action — especially for e-commerce, government, education, healthcare, and financial services websites.

What is the best practice for writing alt text?

The best practice for writing alt text is to keep it concise, descriptive, and focused on the image's purpose. Describe key objects, actions, or context without repeating nearby content. Skip phrases like "image of" or "photo of" since screen readers already announce it's an image. Just write "Surfer riding a large wave at sunset" instead of "A picture of a surfer."

If the image is decorative, use a null alt attribute (alt=" ") so readers can skip it. Keep the language simple, avoid technical terms and abbreviations unless necessary, and provide localized alt text for multilingual websites.

Should alt text contain keywords?

Yes, alt text can include relevant keywords, but only when they naturally fit the image description. The primary goal is accessibility, so clarity and accuracy should be the top priority. Avoid keyword stuffing; alt text should describe the image in a human-friendly way that helps all users.

Start free with 25 image credits

See how AltTextLab saves you hours and boosts SEO
Try in now
No credit card
Just results