Grackle Slides is an automatic accessibility checker for Google Slides. It identifies barriers and provides guidance to improve slide deck accessibility.
- Install Grackle in your Google Workspace
To check your Google Slide deck, open the document and launch the Grackle Slides Extension.
- In the Google Slides menu, select Extensions > Grackle Docs > Launch
- Grackle Slides opens in the right sidebar and runs a check
Accessibility Check Results
Grackle Slides gives you information about each check that it runs. Review all Warnings and Failed checks, and fix where needed.
- Green Checkmark = Passed
- Green Checkmark with Exclamation = Passed with Warning
- Red X = Failed
Improve Your Slides
Each section in the sidebar includes several checks. If you get a Warning or Failed check, follow instructions in the Grackle sidebar to take action and fix issues.
Presentation
This section checks that:
- Slide deck has a descriptive title
- Language is set (English is usually set by default)
Slides
This section reviews each slide. It checks that:
- Each slide has a unique title
- Empty slides are not used
Tables
If your slide has tables, this section makes sure they are correctly tagged and described. It checks that:
- Tables are tagged correctly with headers
- Cells are not merged
- Cells are not empty
Elements
This section reviews images and other layout elements. It checks that:
- Images and graphics have alt text
- Text boxes are not empty
- Lists are correctly marked as numbered or unnumbered lists
Contents
This section checks for a variety of formatting issues. It checks that:
- Good contrast is used
- Font size is large enough to be readable
- Blank lines are flagged for review
- Style changes are flagged for review