What is Redis?
Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker. Redis provides data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs, geospatial indexes, and streams.
Redis is a tool in the In-Memory Databases category of a tech stack.
Why developers like Redis
Performance
Super fast
Ease of use
In-memory cache
Advanced key-value cache
Open source
Easy to deploy
Stable
Free