# What is Alt text?

Alt text is the written replacement for an image. Screen readers use it, and search engines use it to understand the image.

Product logos and badge images use the product name. Decorative chrome uses an empty alt.

| Field | Value |
| --- | --- |
| term | Alt text |
| canonical | https://www.scrolllaunch.com/glossary/alt-text |
| kind | defined term |

## On ScrollLaunch

- [Alt text checker](https://www.scrolllaunch.com/tools/image-alt-checker)