**What is Redis?**\
\
**Redis** (Remote Dictionary Server) is an open-source, in-memory data structure store that can be used as a database, cache, and message broker. It supports various data types like strings, hashes, lists, sets, and more. Redis is known for its high-speed performance, making it ideal for use cases that require fast data access, such as caching, session management, real-time analytics, and pub/sub messaging.