Last updated: March 2026
What Is an Alt Text Generator?
An alt text generator uses AI to analyze images and produce descriptive text that can be used as the alt attribute on HTML images. This text is read aloud by screen readers, making your website accessible to visually impaired users.
Good alt text is essential for web accessibility compliance (WCAG 2.1) and helps search engines understand image content for better SEO rankings. Writing it manually for hundreds of images is tedious — AI makes it instant.
Upload any image and get a concise, accurate description in seconds. Edit the result to add page-specific context, then copy it to your CMS or code.
Key Features
AI-powered descriptions. Advanced image recognition identifies objects, scenes, text, colors, and context to generate accurate, natural-language descriptions.
Accessibility-ready output. Generated alt text follows WCAG best practices — concise, descriptive, and free of redundant phrases like "image of" or "picture of."
SEO-optimized. Descriptions include relevant keywords naturally, helping your images rank in Google Image Search and improving overall page quality signals.
Editable output. Fine-tune the generated text before copying. Add context specific to your page or adjust the tone to match your brand voice.
Frequently Asked Questions
What is alt text and why does it matter?
Alt text (alternative text) is a written description of an image that screen readers read aloud for visually impaired users. It also helps search engines understand your images, improving SEO. Every image on a website should have descriptive alt text for accessibility compliance.
How does the AI alt text generator work?
Upload or paste an image and the AI analyzes its contents — identifying objects, people, text, colors, and context. It then generates a concise, descriptive alt text string suitable for use in HTML img tags or CMS alt text fields.
Is the generated alt text good for SEO?
Yes. The AI produces descriptive, keyword-relevant alt text that helps search engines index your images. Good alt text improves image search rankings and overall page accessibility scores, both of which contribute to better SEO.
Can I edit the generated alt text?
Absolutely. The generated text is a starting point. You can edit it directly in the output field to add context specific to your page, adjust length, or refine the description before copying it to your site.