MongoDB Compass is a graphical tool that allows developers to easily analyze and understand database schema, as well as visually construct queries without knowing MongoDB's query syntax. It was built to address three main goals: schema discovery, data discovery, and visual construction of queries. Compass displays the data types of fields in a collection's schema, shows histograms to represent data frequency and distribution within a collection, and allows users to build interactive charts that can be used to construct MongoDB queries. The tool is available for free in development environments and comes included with production use subscriptions to MongoDB Professional and Enterprise Advanced.