Bulk Alt Text Generator

Fast, reliable, and ready to scale

Generate alt text for thousands or millions of images in minutes. Connect your media library, store, or DAM and every image gets an accessible, SEO-ready description.

Try It Yourself

See the quality for yourself, then turn on bulk mode to process your entire library.

View Integrations Check Pricing

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

How it works

From your library to finished alt text in four steps.

  1. 01

    Choose your integration

    Connect WordPress, Shopify, or another platform—or use the API or a CSV.

  2. 02

    Configure settings

    Set languages, SEO keywords, product data, and custom AI instructions.

  3. 03

    Process your images

    Point us at your media library, store, or a list of image URLs and hit generate.

  4. 04

    Review and export

    Review the results, write back to your platform, or download a CSV.

Watch your library fill in

See alt text generate in real time as your images process — so you always know where a big job stands.

123456789 
curl --location 'https://alttext.ai/api/v1/images/bulk_create' \
  --header "X-API-Key: abc123" \
  --header "Content-Type: multipart/form-data" \
  --form 'file=@"images.csv"' \
  --form 'email="user@example.com"'

# CSV includes: url,lang,keywords,ecomm_product columns
# Returns: bulk upload job with processing status

Bulk Alt Text API

Our REST API takes 100K+ image URLs in a single batch and applies the same settings across all of them.

Built for volume

Migrate a media library, an entire CDN, or a content repository in one job.

Website scraping

Point the API at any page and get alt text back for every image on it.

View API Documentation

Custom Integration

Run our AI under your own brand and share revenue on qualifying integrations—alt text generation built right into your platform.

White-label

Your users see your product, not ours. No AltText.ai branding anywhere.

Built to scale

The same infrastructure that runs millions of images for our own customers.

Revenue share

Earn on every image your users process. We split revenue on qualifying integrations.

Contact Sales

Why Choose Our Bulk Generator?

Enterprise-scale processing with complete control. Use your existing product data, SEO keywords, and custom prompts across WordPress, Shopify, our API, or CSV imports.

Handle Any Scale

Upload a single CSV with 100K+ image URLs—or call our API—and we handle the rest. Works with images from any URL location: CDNs, cloud storage, or remote servers.

130+ Languages

Auto-localize alt text for global storefronts and multilingual sites. Perfect for international e-commerce and localized content.

E-commerce Intelligence

Our AI weaves product names, brands, and keywords into every description for better search rankings. Ideal for online stores wanting product-specific, SEO-optimized descriptions.

SEO Keyword Targeting

Pin required phrases or block unwanted ones to keep your on-page SEO on point. Full control over optimization for better search rankings.

Smart Keyword Discovery

Our AI analyzes product descriptions, content, or any text you provide to automatically extract relevant SEO keywords—powerful for content optimization.

Custom AI Instructions

Control tone, style, or brand voice with per-batch or per-image prompts. Maintain consistent brand voice across your entire library.

Smart Overwrite Rules

Replace missing alt text while protecting descriptions you've already perfected. Choose whether to replace existing alt text or preserve it during bulk processing.

Custom Metadata & Tracking

Add internal notes, tracking information, or additional context to help you manage and organize your bulk alt text generation process.

Check Integrations Read API Docs

Integrations

One-click integrations that plug straight into your existing workflow. Process entire media libraries, product catalogs, and image archives with enterprise-grade accuracy and speed.

WordPress

Retroactively fill alt text across your Media Library. Works with Yoast & RankMath keywords.

Shopify

Bulk-process product, variant, theme, and blog images. 5-star rated.

Cloudinary

Tag entire folders or search results in a single run.

InstantAlt

Instant alt text generation for any image with one click.

Pinterest

Import, process, and export alt text right back to your pins.

CSV Import

Perfect for CDN assets, headless CMSs, and custom workflows—with live progress as every import runs.

Page Scraper

Import, process, and export alt text right back to your pages.

API

Bulk processing via API

And many more integrations available...

CMS Integrations E-commerce Integrations Custom Integrations

CSV Import Processing

Upload a CSV of image URLs and watch hundreds process at once, live. The simplest way to handle a library that doesn't live in WordPress or Shopify.

  • CSV in, CSV out

    Upload your URLs, get a CSV back with alt text for every image.

  • Any image host

    Works with any URL—CDNs, remote libraries, third-party hosts.

  • Export anywhere

    Download the results or pull them straight into your systems via API.

CSV import interface showing bulk processing of image URLs for alt text generation.

WordPress Processing

The AltText.ai WordPress plugin can retroactively generate alt text for all existing images in your media library. Works great for content sites, blogs, and WooCommerce stores with large image libraries.

  • Missing Alt Text

    Generate missing alt text for all existing images in your WordPress media library. Ideal for large content sites and blogs.

  • WooCommerce Integration

    Automatically process product images in bulk, incorporating product names and descriptions into generated alt text.

  • SEO Keywords

    Incorporates focus keyphrases from Yoast, RankMath, and other SEO plugins for optimized alt text.

Get WordPress Plugin
WordPress media library showing AltText.ai bulk processing options for existing images.

Shopify Processing

The AltText.ai Shopify app processes all your product images, blog images, and theme images in bulk. Automatically incorporates product names, brands, and descriptions for SEO-optimized alt text.

  • All Product Images

    Process product images, variant images, and collection images in bulk with product-specific alt text.

  • Blog & Theme Images

    Generate alt text for blog post images, theme images, and other store media automatically.

  • Store-aware alt text

    Pulls in product names, brands, and descriptions so the alt text reads like your store.

View Shopify App
Shopify admin showing AltText.ai bulk processing for product images and store media.

E-commerce Teams

Add SEO-optimized alt text to product catalogs. Process entire catalogs, inventory photos, and marketing images with enterprise-grade accuracy.

Works with:

Shopify, WooCommerce, Magento stores wanting to boost their accessibility and SEO.

Contact Sales

Publishers & Bloggers

Retrofit accessibility across years of media. Process blog images, media galleries, and content archives with WCAG-aligned alt text.

Works with:

WordPress sites, headless CMS setups, media companies, and content publishers who care about accessibility and SEO.

Contact Sales

Agencies & SaaS Platforms

Embed alt text generation as a value-add feature. White-label our technology to offer professional alt text generation directly within your platform or service.

Works with:

Digital agencies, SaaS platforms, CMS providers, and marketing tools that want to offer accessibility features to their clients.

Contact Sales

Related Solutions

Explore other ways to generate alt text across different platforms:

AI Visibility

Make your images visible to ChatGPT, Perplexity, and AI search.

WordPress Bulk Processing

Process your entire WordPress media library automatically with our plugin.

Shopify Integration

Bulk process product, blog, and theme images in your Shopify store.

InstantAlt Technology

Add one script to your website for automatic alt text generation.

Need enterprise SLA and dedicated support? See Enterprise

Ready to Scale Your Accessibility & SEO?

Pick your integration. Select your images or upload a CSV. Hit generate—and watch thousands of images update themselves.

Get Started
Free to start—your first 25 images are on us.