Upload an image to generate accurate alt text for accessibility, SEO, and social posts. Direct image URLs work too when your image is already public.
Drop an image here, or browse
PNG, JPG, GIF, WebP
AltCaption creates concise image alt text from uploads or direct image URLs. Use it for blog images, product photos, portfolio galleries, CMS media libraries, and social posts that need better accessibility text.
The generator works best when you want a practical first draft. Describe the visible subject, keep the wording clear, then adjust the result for page context before publishing.
Drop a PNG, JPG, GIF, or WebP file, or paste a hosted image URL when the image already lives online.
Results are written as plain alt text. They avoid captions packed with keywords or file names.
For product catalogs and CMS migrations, use the bulk alt text generator to process many image URLs.
Use AltCaption as an image alt text generator for uploads and image URLs. Draft useful alt text, then edit it for the page.
Generate alt text for images from uploads or URLs. Learn how to turn generated drafts into useful accessibility text for websites, stores, and posts.
Generate image alt attributes with AltCaption. Clear guidance for alt tags, accessibility, product images, and SEO cleanup.
Write image alt text for SEO without keyword stuffing. Practical examples for product images, screenshots, blog posts, and content cleanup.
Scan a page for missing, empty, duplicate, or weak image alt text.
Preview alt text generation for a short list of image URLs.
Generate product image alt text with catalog context.
Draft alt text for Shopify product photos, variants, and collection images.
Generate image alt text and copy it as an HTML alt attribute.
Check existing alt text for empty, generic, long, or keyword-stuffed wording.
Draft alt text for Instagram, Pinterest, Bluesky, X, and other social posts.
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