[epikur]

They do! Not fully optimized for developers perhaps, but check out "Speech Viewer" in NVDA and the "Braille Viewer" and "Speech History" in JAWS. This guide has some screenshots:

https://www.accessibility-developer-guide.com/setup/screen-r...

[mwcampbell]

Also Narrator's developer mode, which you can toggle with Control+Narrator+F12 (where the "Narrator" key is either Caps Lock or Insert).

Disclosure: I used to work on the Narrator team at Microsoft.

[SpaceL10n]

And, in addition to those JAWS tools, there is also JAWS Inspect (https://www.paciellogroup.com/products/jaws-inspect/)