MongoDB vs Redis: What are the differences?
Developers describe MongoDB as "The database for giant ideas". MongoDB stores data in JSON-like documents that can vary in structure, offering a dynamic, flexible schema. MongoDB was also designed for high availability and scalability, with built-in replication and auto-sharding. On the other hand, Redis is detailed as "An in-memory database that persists on disk". Redis is an open source, BSD licensed, advanced key-value store. It is often referred to as a data structure server since keys can contain strings, hashes, lists, sets and sorted sets.
MongoDB belongs to "Databases" category of the tech stack, while Redis can be primarily classified under "In-Memory Databases".
"Document-oriented storage", "No sql" and "Ease of use" are the key factors why developers consider MongoDB; whereas "Performance", "Super fast" and "Ease of use " are the primary reasons why Redis is favored.
MongoDB and Redis are both open source tools. Redis with 37.1K GitHub stars and 14.3K forks on GitHub appears to be more popular than MongoDB with 16.2K GitHub stars and 4.08K GitHub forks.
According to the StackShare community, Redis has a broader approval, being mentioned in 3239 company stacks & 1735 developers stacks; compared to MongoDB, which is listed in 2175 company stacks and 2145 developer stacks.
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