Screen readers
Tools like NVDA, JAWS, VoiceOver that read out content aloud.
Use to test
Impairments this tool can test for:
Types of screen reader
There are 3 main types of screen reader:
- paid ones, such as JAWS (Job Access With Speech)
- free ones, such as NVDA (Non-Visual Desktop Access)
- built-in ones, such as Narrator (on Windows devices) and VoiceOver (on Apple devices)
Who should test with a screen reader
Everyone can test with a screen reader. It's useful to understand how people who use one might navigate a service you're creating, content you're writing, or a document you're drafting.
Interaction designers and developers especially, should know the basics of a screen reader and be able to carry out checks on a service they're designing or developing.
How to start testing with a screen reader
Most screen readers are used in the same way, but they all have their own keyboard shortcuts and commands.
The easier way to start testing with one is to switch the screen reader on and use the tab key to navigate through your service. This will give a basic idea of how a screen reader works and the type of information that is relayed audibly to a user.
However, this will only give you information on interactive components, such as links and buttons in your service. There are many other types of web content that should be tested to ensure your website is accessible.
How to use each screen reader
Voiceover
Voiceover is available on Apple devices. It's a built-in screen reader that can be used on iPhones, iPads and Macs.
Guidance to use Voiceover and a tutorial video (8 minutes, 45 seconds) for features and testing for common issues.
NVDA
NVDA (Non Visual Desktop Access) is a free screen reader for Microsoft Windows.
Guidance and a tutorial video for this tool is being worked on.
Jaws
JAWS (Job Access With Speech) is a paid version of a screen reader.
Guidance and a tutorial video for this tool is being worked on.