About AltCaption
AltCaption is an AI alt text generator for people who publish images on websites, stores, blogs, and social channels.
Drop an image or paste a URL, pick your language, and get alt text you can copy straight into your site. The goal is practical image descriptions that help screen reader users understand the image and give search engines useful context.
The free generator works well for individual images, drafts, and quick publishing tasks. The bulk alt text generator is for product catalogs, CMS migrations, media libraries, and client image sets where many image URLs need consistent descriptions.
AltCaption supports common publishing workflows: e-commerce teams improving product image SEO, creators adding accessible descriptions before posting, and site owners filling missing image alt attributes before launch. See pricing for free and Pro generation limits.
Built by Hwee-Boon Yar, a solo indie developer who has been writing and delivering software for 30 years.