a11ysupport.io
What it does
Provides compatibility tables for accessibility features — showing which browser and assistive technology combinations correctly support a given HTML element, ARIA role, or pattern. Functions as a “Can I Use” for AT support.
Who is it for
Developers building accessible interfaces who need to know whether a specific ARIA pattern or semantic element is reliably announced by screen readers across browser and AT combinations.
Where to find it
Source at github.com/accessibleweb/a11ysupport.io.
Who is maintaining it
Michael Fairchild, with community contributions for test results.