Why is alt text important?

Alt text gives screen-reader users access to information conveyed by images. It also gives search engines useful context about an image when they index a page. Decorative images should use an empty alt attribute instead of a generated description.

Does alt text help image SEO?

Descriptive alt text can help Google understand an image together with its filename, surrounding copy, and page context. Write for people first: describe the image's purpose naturally and avoid keyword stuffing.

What is an AI alt text generator?

An AI alt text generator uses computer vision to analyze images and draft descriptions automatically. AltText.ai can also incorporate product names, brand details, and page context to produce more useful descriptions in over 130 languages.

What makes alt text effective?

Effective alt text is concise, specific, and appropriate to the image's purpose on that page. It should communicate useful information without repeating nearby text or adding keywords that do not belong.

How many languages does AltText.ai support?

AltText.ai generates alt text in over 130 languages. This includes automatic language detection for multilingual sites using WPML, Polylang, or Shopify Markets.

How do I check if my website has missing alt text?

Use our free site scanner — enter your URL and we'll crawl up to 25 pages in under 60 seconds. You'll see which images are missing alt text and which pages need attention. No signup required.

Is the free website scanner really free?

Yes, the scanner is free with no signup required. We scan up to 25 pages and show you a breakdown of missing alt text and the pages that need the most attention. For detailed results delivered to your inbox, enter your email after scanning.

Alt text (alternative text) communicates an image's content or function. It's stored in the HTML alt attribute, read aloud by screen readers, and used by search engines as one source of image context. See our complete guide for examples.

What is an altgenerator (alt generator)?

An alt generator (also written 'altgenerator' as one word) is a tool that automatically writes alt text for images. AltText.ai is an alt generator — it scans your images, generates context-aware descriptions in 130+ languages, and writes them back to your CMS automatically.

What's the difference between alt text and alt description?

They're the same thing. The HTML attribute is alt, and people refer to its value interchangeably as alt text, alt description, alt attribute, or alt tag. AltText.ai uses 'alt text' as the canonical phrasing because it's the most common.

Is it 'alt text' or 'alt-text'?

Both spellings are equally common. The HTML attribute itself is alt (no hyphen). 'Alt text' (two words) is the form Google, W3C, and most accessibility documentation use. 'Alt-text' (hyphenated) means the same thing.

Free AI Alt Text Generator for WCAG, ADA & SEO

Scan your site for missing alt text, then generate accurate, accessibility-friendly image descriptions for better SEO—in 130+ languages, on autopilot.

Tap to uploadClick to select or drop a new image

Try It! Click to select or drag and drop

PNG, JPG, GIF, WebP, BMP (max 16MB)

Custom SEO keywords

Optional

Integrations:

Trusted by the Best

A mountainous landscape under a cloudy sky, depicted in monochrome blue.

A modern architectural structure with curved lines, shown in monochrome blue.

A red fox stands on sand dunes surrounded by tall, dry grass. The background shows a blurred view of the ocean.

Dense tropical vegetation with a large leafy plant in focus, in monochrome blue.

A dramatic canyon view with a starry sky visible through an opening, in monochrome blue.

▴ 38M Images Now AI-Visible

A person in an apron, smiling in an indoor setting, in monochrome blue.

A close-up portrait of a smiling person with short hair, in monochrome blue.

A smiling man in glasses and a denim shirt, standing against a plain background.

A smiling woman with wavy hair and a patterned shirt, in monochrome blue.

A cheerful woman with curly hair, smiling broadly and slightly turned, in monochrome blue.

▴ 97K+ Teams

22+ Native Integrations

130+ Languages

A polar bear is lying on a rocky surface with some snow, surrounded by trees and shrubs, near a body of water.

Generic alt text — missing useful context: alt="polar-bear-snow.jpg"

vs.

Descriptive alt text — useful to people and search: alt="A polar bear standing on packed snow, looking toward the camera"

Make Every Image Work Harder

Clear image context

Good alt text describes what an image actually contributes to the page—not just what's in it. It's there for screen-reader users, and it gives search and AI systems something real to work with alongside everything else on the page.

Accessibility and SEO, handled

The same descriptions support WCAG and ADA accessibility and help Google understand your images—no manual writing, no guesswork. Good alt text makes your site work for everyone. What is alt text?

Scales with your catalog

Stay effortless as you grow. Every new image gets accurate alt text automatically in 130+ languages—using our WordPress plugin, Shopify app, or any platform.

Free — No Signup Required

Check your AI visibility score

Our free scanner crawls up to 25 pages and shows you exactly which images ChatGPT, Claude, and Perplexity can't see — with a full breakdown of missing alt text, affected pages, and your overall AI visibility score.

Missing alt text detection

Every image on every page, with exact counts

Page-by-page breakdown

See which pages need the most attention

SEO & AI impact score

How missing alt text affects your visibility

Scan My Site Free Results in under 60 seconds

Critical

38 %

Images Missing Alt Text

Average across scanned sites

High Risk

HIGH

SEO Impact

Search visibility at risk

Scope

Pages Scanned Free

Instant results, no account needed

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Three Steps to Automatic Alt Text

Install Once

Add our plugin to WordPress or Shopify (takes 2 minutes). Or paste one line of JavaScript on any website. That's the only setup you'll ever do.

We Analyze Every Image

Our AI automatically analyzes each image on your site—product photos, blog graphics, team headshots—and generates accurate, detailed descriptions. No manual work required.

A red fox stands on sand dunes surrounded by tall, dry grass. The background shows a blurred view of the ocean.

Publish Better Alt Text

Send accurate descriptions back to your site automatically. Screen-reader users get meaningful context, and search engines can better understand your images.

Start Free 25 images free, no credit card

Start free, then pick a plan that grows with your catalog—paid plans start at $5/mo, or $49/yr with 2 months free.

Flexible Integrations

Whether you are a content creator, agency, business owner, or developer, AltText.ai can make your job easier, and your website better.

WordPress Plugin

Automatically generate alt text for every new image you add to your media library. Plus, repair all your existing images with our bulk updater. AltText.ai for WordPress does it all.

Ecommerce Platforms

Our Shopify app, WooCommerce integration, and Magento extension intelligently add your product data into the generated alt text.

Headless CMS

Use our native app for Contentful or plugin for DatoCMS to seamlessly add AI-generated alt text to your images within the CMS. We even have a Zapier integration to handle other platforms!

Website & Developer API

Generate alt text for individual images, or import directly from CSV, Dropbox, Cloudinary, or Pinterest. Our Developer API lets you add SEO alt text anywhere in your application.

Browser Extensions

The AltText.ai Chrome Extension and Firefox AddOn let you right-click on any image and get alt text to copy and paste. Use them with your Squarespace site, Webflow project, or any other web page.

Automations

We offer pre-built connectors for Zapier, Pabbly, Albato, and SureTriggers. You can hook these up to hundreds of other supported systems to build a fully automated alt text generation workflow.

22+ Native Integrations

Works With Your Stack

Native integrations for the platforms you already use. Install once, generate alt text automatically.

Shopify WordPress Contentful Cloudinary WooCommerce BigCommerce DatoCMS Storyblok Magento Ecwid Chrome Firefox MCP Server Dropbox Pinterest Google Tag Manager REST API InstantAlt Zapier Pabbly Albato SureTriggers

Also supported via InstantAlt: Wix, Squarespace, Webflow, Ghost, Drupal, HubSpot

View All Integrations Ecommerce, CMS, No-Code, Browser, API

Who It's For

Built for Every Layer of Your Content Operation

Ecommerce Teams

Make product images visible to AI shopping assistants and search engines. Alt text with product names, brands, and SEO keywords—automatically, as you add products. Works with Shopify, WooCommerce, BigCommerce, and Magento.

Enterprise & Agencies

Automate WCAG and ADA compliance across thousands of images and dozens of client sites. Bulk processing, quality checks, consistent output. Trusted by General Mills, Microsoft, and GitLab.

Developers

Add accessibility to your application in a single API call. REST API, MCP Server, JS snippet, or connect via Zapier. Process images at any scale, programmatically.

Join 97,000 Teams

WordPress

★ 4.7 out of 5

(read reviews)

Shopify

★ 4.5 out of 5

(read reviews)

Very helpful tool for bloggers

AltText.ai has become an essential tool in my website optimization toolkit. As someone who values both SEO and accessibility, I was thrilled to discover this AI-powered solution that generates image alt text effortlessly. The accuracy of the generated alt text is impressive - it captures relevant details from images without any human intervention required.

@Unioq

This is VERY good

I have multiple client websites with thousands of images that do not have alt text. We have tried code that "assigns" alt text but they are clumsy.
Alttext.ai is AI driven and VERY Good. I burned through my 2000 first month allotment quickly.

@4390bbe

So Awesome, So Much Time Will be Saved

This will save our team so much time and more importantly we will have Alt Text for the images. In general no one wants to create Alt text, now we have a tool to accomplish this task.

@intownrunner

Great Tool for Alt Text

The API works great and is very quick. I processed over 200 images in less than 5 minutes and all of the 'alt' text was exceptionally accurate.
A great tool - well done 10/10

@Rich77ard

This has saved me at least 150 hours!

Thank you for creating such an intuitive plugin for WordPress. As an web design agency owner, this was a no brainer purchase and has already saved me 150 hours of manually writing alt text.

@ChrisCownden

5 websites optimised with ALT text in an afternoon

Thanks for saving us hours of work. We have optimised 5 of the sites we run just today! That is over 1550 images so far to say we are impressed is an understatement

@TheEneverGroupTeam

Free!

Find and Fix Missing Alt Text

Run our free website scanner to find images missing descriptions, improve accessibility, and sharpen your image SEO—then fix everything in minutes.

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