MongoDB is a open source document oriented database which same as the NoSQL database and the NoSQL database, MongoDB save the relational database which is structure based and JSON like documents which have dynamic schemas used BSON. It is first Non sequential database which store data in unstructured form of data. MongoDB became one of the most popular NoSQL databases and it used as the backend for many major websites including eBay, Craigslist, SourceForge and The New York Times. MongoDB is available under the GNU Affero General Public License while its language drivers are available under the Apache License. MongoDB generate data integration for certain types of applications faster and easier. MongoDB is built for scalability, high availability and performance from a single server deployment to large and complex multi-site infrastructures and it also support the dynamic schema design, allowing the documents in a collection to have different fields and structures. The database uses a document storage and data interchange format called BSON which provides a binary representation of JSON like documents. Automatic sharding enables data in a collection to be distributed across multiple systems for horizontal scalability as data volumes increase.