Alt text

Alt text is a short written description of an image. Screen readers read it aloud, and browsers show it if the image fails to load.

Good alt text says what matters about the image in its context, like "Blue bicycle with an orange saddle" for a product photo.

Keep it short, skip phrases like "image of", and do not repeat text that is already next to the image. Purely decorative images should have empty alt text, so screen readers skip them.