I've created this Chrome extension over a year ago to improve my dev experience with web accessibility. As much as I like working on it I suck in marketing. This is unfortunate, because the tool is not as widely used as it could be (even though there is almost 1400 weekly active users and 16 5-star reviews in the web store).
It's a different kind of tool. It doesn't run any automated audits. The idea is to present your website in a way blind users would "see" it so that it's easier to empathize with them.
This plugins renders accessibility tree for a website. E.g. instead of images you'd see their accessible name.