MongoDB is portrayed as 'record informational index with the flexibility and versatility that you want with the scrutinizing and requesting that you need' and is a particularly popular application in the improvement order. There are more than 50 choices as opposed to MongoDB for various stages, including Linux, Mac, Windows, BSD and Self-Worked with courses of action. The most ideal choice is PostgreSQL, which is both free and Open Source. Other uncommon applications like MongoDB are SQLite, MySQL Social class Delivery, MariaDB and Redis. MongoDB decisions are essentially Friendly Informational collections yet may in like manner be Data base Chairmen. Direct by these if you really want a more modest summary of alternatives of mongodb .
 .Some of various decisions are :
Apache Cassandra. Expecting you really want high openness and flexibility while ensuring execution, Apache Cassandra is the reaction. ...
Redis. ...
OrientDB. ...
DynamoDB. ...
CouchDB. ...
ArangoDB. ...
RethinkDB.

MongoDB is a report arranged informational index organization structure. It maintains various sorts of data and is probable the most well known NoSQL informational index. MongoDB has for the most part been notable among JavaScript architects, at this point that is slowly advancing.
NoSQL informational indexes emerged in 2009 too realized locales terminated expanding. By then, none of the informational indexes available could scale with the end result of satisfying the necessities of the business community.
MongoDB is an informational index organization system. It uses a report arranged informational index model and supports various kinds of data. It is a non-social informational collection development used for enormous data applications where the data is in the unstructured association. As opposed to tables and lines, the designing uses combinations and reports. Thusly the data in MongoDB is central 'outline less', which makes MongoDB an uncommonly fast and adaptable application. MongoDB is written in C++ which makes it faster than most of various competitors. MongoDB is very powerful in circumstances where enormous flexibility and putting away for ceaseless assessment on unstructured data is required. MongoDB is particularly sensible for Versatile applications, content organization, progressing examination, and applications including IoT. Like the wide range of various things, MongoDB has its potential gains and drawbacks. We ought to make a dive further to research the constraints of MongoDB and various choices that are sensible for various essentials