MongoDB is an open source database that uses a document-oriented data model. MongoDB focuses on flexibility, power, speed, and ease of use.
A Document Database
Derived from the word “humongous”, MongoDB is a free and open-source cross-platform database designed for document-oriented storage. MongoDB is one of several database types to be developed in the mid-2000s under the NoSQL moniker.
An Impressive List of Clients
Since its creation, MongoDB has been adopted as backend software by several major websites and services, including Brave Collective, eBay, Foursquare, Viacom, and the New York Times, among many others.