UWorld Answer Viewer is a free Chrome extension developed by haining.cpp. It falls under the category of Browsers and is specifically classified as an Add-ons & Tools subcategory. This extension serves as a convenient tool for rendering content from UWorld practice tests in simple HTML.

With UWorld Answer Viewer, users can easily view HTML-rendered content in a popup window. The extension provides a user-friendly interface that allows users to access explanations by clicking on the "explanation" tab. It is important to note that this extension does not provide answers before they are visible on the page, ensuring a fair and accurate testing experience.

Overall, UWorld Answer Viewer is a valuable tool for individuals using UWorld practice tests. It simplifies the viewing process by rendering content in an easy-to-read format, making it easier to review and understand explanations.