Alt tag generator

Alt tag generator for image attributes

People search for an alt tag generator, but the thing you usually edit in HTML is the "alt" attribute on an image. Fair enough. The job is still to give the image useful text.

AltCaption generates that text so you can paste it into your CMS, product feed, HTML, or media library.

Quick answer

An alt tag generator writes text for the image "alt" attribute. I keep that text plain: describe the image, skip keyword lists, and leave decorative images empty.

What goes in an alt attribute

I keep alt attributes plain. No keyword lists, no sales pitch, no repeated caption. I describe the product, screen, or chart takeaway based on what the image is doing on the page.

The test is simple: if someone cannot see the image, does the alt text give them the information the page expects them to get from it?

When to leave it empty

Not every image needs text in the alt attribute. Decorative separators, background flourishes, and repeated icons can use empty alt text so screen readers can skip them.

For content images, product images, screenshots, diagrams, and photos that explain something, write the alt text.

Use `alt=""` for decorative images.
Use descriptive alt text for meaningful images.
Do not describe an icon when nearby text already says the same thing.
Do not use the image file name as the fallback.

Examples

HTML example: `<img src="bag.jpg" alt="Black canvas tote bag with tan leather handles">`
CMS field example: `Alt text: Screenshot of a pricing table with Free and Pro plans`
Product feed example: `Red linen dress with square neckline and short sleeves`

Common questions

Is it called an alt tag or alt attribute?

In HTML, it is the "alt" attribute on an image. People still search for alt tag, so I use both terms when it helps.

Can alt attributes help image SEO?

Yes, when they describe the image accurately. Stuffed keywords make the page worse.

Generate alt text from an image

Upload an image, paste a URL, or use bulk generation when you have a list of image URLs.

Try the generator Bulk image URLs