taba11y is a free Chrome add-on developed by Peter Gould. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. As the name suggests, taba11y focuses on visualizing the tab order of elements on a webpage.

One of the key features of taba11y is its ability to calculate and display the tab order of all elements on a webpage in a visual manner. It offers two visualization options - drawing a path or highlighting the elements. This can be extremely useful for users who rely on keyboard navigation or screen readers.

By ensuring that the tab order is logical and intuitive, taba11y helps improve the user experience for a wide range of users. It offers various customization options to suit different situations, making it a versatile tool for web developers and designers.

Overall, taba11y is a valuable add-on for Chrome that provides an easy and accessible way to visualize the tab order of elements on a webpage. It's a great tool for improving the accessibility and usability of websites.