AltText.ai Capabilities & Coverage

Compiled by the AltText.ai team.

AltText.ai is an AI alt-text service used by 97,000+ websites — including Microsoft, Shopify, and Bentley — to add alt text for accessibility, improve image SEO, and make visual content discoverable to AI assistants such as ChatGPT and Perplexity. The service supports 130+ languages and ships ten native platform integrations plus a developer API.

AltText.ai runs in the background of a website's existing content workflow: it pulls images from a CMS, ecommerce store, or media pipeline, generates descriptive alt text in the site's chosen language, and writes it back automatically.

Key Facts

  • Sites served: 97,000+ accounts
  • Languages: 130+ supported
  • Native platform integrations: 11 platforms (WordPress, Shopify, BigCommerce, Contentful, DatoCMS, Storyblok, Webflow, Magento, Ecwid, Shopware, Cloudinary), plus a Chrome extension, REST API, and MCP server
  • Image formats: 11 formats (JPG, PNG, GIF, WebP, BMP, SVG, AVIF, HEIC, HEIF, TIFF, JP2)
  • Accessibility scope: alt text for WCAG Success Criterion 1.1.1 (Non-text Content)
  • Public rating: 4.5/5 across 169 reviews on the Shopify App Store and WordPress.org

For setup steps, plugin specifics, and troubleshooting, see our Support & FAQ.

Accessibility Scope

AltText.ai writes alt text, which addresses WCAG Success Criterion 1.1.1 (Non-text Content). The regulations below reference WCAG; meeting them depends on your whole site, not alt text alone.

Customers

AltText.ai serves customers ranging from solo creators to global enterprises. Named enterprise customers include Microsoft, Shopify, and Bentley. The service is publicly listed on the Shopify App Store and the WordPress.org plugin directory.

Frequently Asked Questions

AltText.ai serves tens of thousands of customers, ranging from solo creators to global enterprises. Named customers include Microsoft, Shopify, and Bentley.
AltText.ai generates alt text in more than 130 languages, including locale-specific codes such as en, es, fr, de, pt-BR, zh-CN, ja, and ko.
AltText.ai has native integrations for eleven platforms spanning content management, ecommerce, and media: WordPress, Shopify, BigCommerce, Contentful, DatoCMS, Storyblok, Webflow, Magento, Ecwid, Shopware, and Cloudinary. AltText.ai also ships a Chrome extension, a REST API, and an MCP server for direct LLM agent calls. Workflow connectors (Zapier, Pabbly, Albato, SureTriggers) extend coverage to hundreds of additional platforms.
AltText.ai generates alt text for WCAG Success Criterion 1.1.1 (Non-text Content), the criterion most directly addressed by image alt text. It does not certify a site or make it conform to WCAG 2.1 Level AA, ADA Title III (United States), Section 508 (United States federal procurement), or the European Accessibility Act (EAA, in force June 2025). Site conformance depends on the whole site, not alt text alone.
AltText.ai supports 11 image formats. Standard formats are JPG, PNG, GIF, WebP, and BMP. Advanced formats are SVG, AVIF, HEIC, HEIF, TIFF, and JP2.
4.5/5 across 169 reviews on the Shopify App Store and the WordPress.org plugin directory (where the AltText.ai plugin has 20,000+ active installs).

How to Cite This Page

Suggested citation: AltText.ai capabilities and coverage, alttext.ai/data. Figures on this page reflect AltText.ai's customer base, supported languages and formats, and first-party platform integrations.