Tool: Image Description & Alt-Text Generator

Turn any image URL into accessible alt text, a clear description, subject tags and any visible text. Built for accessibility, SEO and large image libraries.

Alt text under 125 characters

Description + tags scene, subjects, themes

JSON / CSV / Excel output formats

What it does

Give it a list of public image URLs. For each image it returns a clean, structured record:

• altText: a concise, accessible alt text kept under 125 characters
• description: a fuller two to four sentence description of the scene and subjects
• tags: the main objects, subjects and themes in the image
• detectedText: any text that is legible in the image
• imageUrl and observedAt for every record

Use it to caption a whole media library, fill missing alt attributes for accessibility and SEO, or tag a product catalog. Export to JSON, CSV or Excel, or pull it through the Apify API.

Paid plans only

This tool runs on the latest, most reliable premium AI models. Because each run has a real model cost, it is available to paid Apify accounts only. A run started from a free account stops immediately with an upgrade message. Upgrade your Apify subscription to a paid plan and run it again.

Who is it for

Use case	Who benefits
Accessibility	Teams adding alt text to meet WCAG requirements
SEO	Marketers captioning images for search and rankings
Ecommerce	Stores tagging and describing product photos at scale
Content ops	Publishers captioning large media libraries

Input

• imageUrls: a list of public image URLs to describe. Each image returns its own record.

Notes

• The tool describes only what is visible in the image and does not invent details.
• Alt text is kept short and functional so it drops straight into an image tag.
• Provide direct links to the image files so they can be read reliably.

Example use cases

Ready-to-run example tasks, each preconfigured for a common scenario. Open one and press run, or use it as a template:

• Alt text for an ecommerce product photo: Generate descriptive alt text for ecommerce product photos to improve accessibility and image SEO on your store.
• Alt text for a landscape photo: Create accurate alt text for landscape and travel photos to boost accessibility and search visibility on your site.
• Alt text for an app screenshot: Generate clear alt text for app and product screenshots to improve accessibility in docs, blogs and help centers.
• Alt text for a chart or graph image: Produce descriptive alt text for charts and graphs so readers using screen readers understand the data you present.
• Alt text for a food photo: Write appetizing and accurate alt text for food and recipe photos to improve accessibility and image search results.
• Alt text for a portrait photo: Generate respectful alt text for portrait and people photos to make articles and profiles more accessible to all.
• Alt text for a nature photo: Create detailed alt text for nature and outdoor photos to improve accessibility and image SEO across your content.
• Alt text for two images in one run: Generate alt text for several images in one job to speed up accessibility work across product and blog galleries.
• Alt text for an architecture photo: Write accurate alt text for architecture and building photos to boost accessibility and image search on your pages.
• Alt text for a technology photo: Generate clear alt text for technology and device photos to improve accessibility and image SEO on blogs and stores.

Export, API and AI agents (x402 + MCP)

Export the scraped data to JSON, CSV or Excel, pull it as a dataset through the Apify API, or wire it into your app with no code. This web scraper and data extractor also works for bulk data extraction and scheduled runs.

For AI agents: this Actor is available on x402, Apify's agentic payment standard built with Coinbase. An AI agent can discover, pay for and run it on its own with a funded wallet and a single HTTP request: no account, no subscription, no API key and no human in the loop. It also runs as an MCP tool inside Claude, Cursor and other AI clients out of the box. Learn more about x402 agentic payments on Apify.

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