How to write meaningful alt-text

A laptop computer on a desk showing several pictures.When meeting a deadline to get something published on the web or social media it’s easy to leave out the description of the image in the alt-text box – but should you?. Alt-text is a description of an image that’s shown to people who for some reason can’t see the image. Among others, alt-texts help:

  • people with little or no vision
  • people who turn off images to save data
  • search engines

People with little or no vision are probably the ones that benefit most from alt-texts. They use a screen reader to navigate the web. A screen reader transforms visual information to speech or Braille. If you don’t include alt-text you run the risk of a screen reader trying to convey something like: “publicity_pre_launch_43.0001.jpg” or “cropped_img32_900px.png”. While Facebook has a built in feature to describe images automatically, the descriptions are too general. “Cat indoors” doesn’t say what the cat is doing. It’s all about context and meaning. Find out more from Axess Lab on how to convey context and meaning without writing an essay! Once you get into the habit, it doesn’t take long to do.

Some really useful tips here from Axess Lab – good information for everyone, nicely laid out and easy to read. As is often the case, attention to detail makes for greater accessibility and inclusion for everyone.

Editor’s Note: the alt-text for the picture on this page is, “A laptop computer on a desk showing several pictures.” And I’ve learned that a full stop at the end is important for screen readers. 

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