About Redis
Redis is an in-memory data store that many apps use for caching, quick lookups and message passing. Its maker also sells Redis Enterprise, a commercial product built on the same core.
What it does
Redis keeps data in memory, so reads and writes are fast. It supports several data types such as strings, lists, sets, hashes and streams, and it can save data to disk so it survives restarts. Newer versions add search and vector queries, which help AI apps find related content.
Key features
- Caching for faster page and API responses
- Data types such as lists, sets and hashes
- Pub/sub and streams for messaging
- Vector search for similar content
- Optional saving of data to disk
Who it's for
Backend teams that need fast shared state, app developers who need caching or session storage, and AI teams building retrieval or memory layers on top of their data.
Pricing and good to know
The core software is open source, but license terms have changed across releases, so check the license for the exact version you plan to use. Managed cloud hosting and enterprise plans are sold separately.
Highlights
- Caching for faster page and API responses
- Data types such as lists, sets and hashes
- Pub/sub and streams for messaging
- Vector search for finding similar content
- Optional saving of data to disk
