Crazy Compare is a Chrome extension designed for Salesforce administrators, developers, and consultants. The extension allows users to quickly compare two different Salesforce profiles and easily identify any differences in access and permissions. It supports both the Classic and Lightning versions of Salesforce and provides a tabular format report of the access differences. The extension is user-friendly, requires no special skills to use, and can save hours of time, especially in migration projects. Note that Crazy Compare is not a Salesforce.com product and the information provided on the extension is for informational purposes only.