1. Redis :
Redis stands for Remote Dictionary Server which is an in-memory data structure project implementing a distributed, in-memory key-value database with optional durability. Redis was developed by Redis labs and initially released on May 10, 2009. It is written in ANSI and C languages. Redis offers memory efficiency, fast operating speed, high availability and provides some features like tunability, replication, clustering, etc.
2. MongoDB :
MongoDB is a cross-platform document-oriented and a non relational (i.e. NoSQL) database program. It is an open-source document database, that stores the data in the form of key-value pairs. MongoDB is developed by MongoDB Inc. and initially released on 11 February 2009. It is written in C++, Go, JavaScript, Python languages. MongoDB offers high speed, high availability, and high scalability.
Difference between Redis and MongoDB :
| S.NO. | Redis | MongoDB |
|---|
| 1. | It was developed by Redis labs and initially released on May 10, 2009. | It was developed by MongoDB Inc. and initially released on 11 February, 2009. |
| 2. | Redis is written in ANSI and C languages. | MongoDB is written in C++, Go, JavaScript and Python languages. |
| 3. | The primary database model for Redis is Key-Value Store. | The primary database model for MongoDB is Document Store. |
| 4. | Redis supported data types are strings, hashes, lists, sets and sorted sets, bit arrays, hyperloglogs and geospatial indexes. Hence, have partial predefined data types. | MongoDB supported data types are string, integer, double, decimal, boolean, date, object_id, geospatial. Hence, have predefined data types. |
| 5. | Redis supports secondary indexes with RediSearch module only. | MongoDB supports secondary indexes without any restrictions. |
| 6. | The Server-side scripting in Redis is through Lua. | The Server-side scripting in MongoDB is through JavaScript. |
| 7. | Redis supports both Master-Slave Replication and Master-Master Replication. | MongoDB supports only Master-Slave Replication. |
| 8. | Redis does not support Map Reduce method. | MongoDB supports Map Reduce method. |
| 9. | Server operating systems for Redis are BDS, Linux, OS X and Windows. | Server operating systems for MongoDB are Solaris, Linux, OS X and Windows. |
| 10. | Some companies like Twinkl Educational Publishing, Merrill Corporation, ASOS.com Limited, Owler, Inc., etc use Redis. | Some companies like Adobe, Amadeus, Lyft, ViaVarejo, Craftbase, etc use MongoDB. |