Redis is an open-source, in-memory data structure store that can be used as a database, cache, and message broker. It supports multiple data structures like strings, hashes, lists, sets, and sorted sets with range queries. Redis also provides advanced features such as transactions, pub/sub messaging system, Lua scripting language support and built-in replication to ensure high availability and scalability. Redis is widely used in various applications such as real-time analytics, social media platforms, e-commerce websites and mobile applications due to its fast performance and flexibility.
