React VT is a visual testing tool designed specifically for React applications. With React VT, developers can easily view the component structure of their app, along with the current state and props. This data-driven visual testing library provides a live view of the React component hierarchy, allowing users to interact with their application while testing assertions in real time.

One of the key features of React VT is the ability for users to define their own assertions and test them on the fly. This allows developers to ensure that their components are rendering correctly and behaving as expected. Once the user is satisfied with their defined tests, they can export their assertions into an Enzyme file, making it easy to incorporate these tests into their existing testing framework.

React VT is a free tool available on the Chrome platform. It falls under the category of Browsers and the subcategory of Add-ons & Tools. If you're a React developer looking for a powerful visual testing tool, React VT is definitely worth checking out.