Free AI Alt Text Generator

Upload an image or paste an image URL and get three SEO-friendly, screen-reader-friendly alt text options.

Click to upload a JPEG, PNG, WebP, or GIF (max 5MB)

MetaMonster finds missing alt text across your whole site and writes it in bulk. see how.

How to write good alt text

Describe what the image actually shows, in the words a customer would use: "stainless steel pour-over kettle with gooseneck spout" beats "kettle-final-v2.jpg". If the image supports a page topic, work the keyword in only where it reads naturally.

This generator looks at the actual pixels, not the filename, so it describes what is really in the image. Pick the option that best matches the image's job on your page.

Frequently asked questions

What is alt text?

Alt text is the written description of an image in your HTML. Screen readers speak it to visually impaired visitors, and search engines use it to understand what the image shows.

Does alt text help SEO?

Yes. Alt text is a ranking factor for Google Images and adds topical context to the page itself. Descriptive alt text on product and feature images is one of the cheapest on-page wins available.

How long should alt text be?

Under 125 characters. That is the point where many screen readers truncate. Say what the image shows, front-load the useful detail, and skip filler like "image of".

Should every image have alt text?

Every meaningful image, yes. Purely decorative images should use an empty alt attribute (alt="") so screen readers skip them instead of announcing a filename.

This tool fixes one page. MetaMonster fixes your whole site.

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