How to Write Effective Alt-Text for Images

Follow these best practices to write good alternative text descriptions for your images:
  • Describe the image based on the page context. Convey the full meaning of the image.
  • Avoid saying "image of" or "picture of". Screen readers automatically announce images as images.
  • Be concise.
  • Write narratives for complex images like infographics. Put this narrative on the page immediately following the infographic. Include an anchor link at the top of the page to view the text alternative. See an example of an infographic with a text alternative.
  • Avoid images of text. If you can't avoid it, copy the text into the alternative description.
  • Identify images that don't represent relevant content as decorative.

Use the following website for more tips about writing effective alt-text for your images:

How to Add Alt-Text to Moodle Images

Note: Images of tables or charts are challenging for users with screen readers or those who navigate with a keyboard. Please replace images of tables, charts, and text with text-based tables, charts, and text.

Last modified: Wednesday, June 19, 2024, 11:10 AM