Redis
A real-time data platform for caches, databases, vector search, streams, and event-driven applications.
About Redis
Redis is a real-time data platform for application caching, primary databases, vector search, JSON documents, streams, and event processing. Teams can run Redis Open Source themselves or choose managed and self-managed enterprise deployments. Cloud options start with a 30 MB free database and extend to shared Essentials and dedicated Pro infrastructure. Essentials includes SAML SSO, role-based access control, encryption in transit and at rest, plus an uptime commitment of up to 99.99%. Pro supports multiple databases, private connectivity, active-active multi-region operation, auto-tiering, and up to 99.999% uptime. Redis is well suited to latency-sensitive applications and AI retrieval workloads. Costs and operational tradeoffs still matter: buyers need to size memory, choose a deployment model, assess support requirements, and account for Pro’s $200 monthly minimum. Supported clients include Java, Node.js, Python, Ruby, .NET, Go, Rust, PHP, and C.
Best for
Best use cases
Use Redis as a cache when repeated reads are slowing an application or placing excessive load on a primary database.
Run vector search when an AI service must retrieve relevant context quickly for generation or agent decisions.
Process streams when services need to consume, retain, and act on real-time events with low latency.
Compare before choosing
The Free plan suits small prototypes, but its 30 MB database and best-effort service limit production use.
Essentials lowers entry cost through shared infrastructure, while Pro trades a $200 monthly minimum for dedicated capacity and advanced networking.
Open Source gives teams deployment control, while Redis Cloud shifts operation and scaling work to a managed service.
Features
Application caching
Keep frequently requested data in memory to reduce application response time and pressure on primary systems.
Vector search for AI
Retrieve relevant structured and unstructured context for AI applications with Redis vector database capabilities.
Streaming and events
Process real-time data flows and application events with Redis Streams and related data structures.
Pros
- The permanent $0 plan gives prototypes a usable 30 MB shared database without a subscription commitment.
- Clients for Java, Node.js, Python, Ruby, .NET, Go, Rust, PHP, and C reduce compatibility friction across mixed stacks.
- Essentials and Pro add encryption, access controls, uptime commitments, and scaling options for production workloads.
Cons
- The Free plan is limited to one 30 MB database with best-effort service and community support.
- Pro has a $200 monthly minimum, which can be expensive for small applications that need dedicated infrastructure.
- Shared Essentials deployments support a single database, so multi-database workloads require the higher-tier Pro plan.
Pricing Plans
Free
- Shared cloud deployment
- 30 MB single database
- Best-effort SLA and community support
Essentials
- Shared deployment
- 250 MB to 100 GB RAM and SSD
- SAML SSO, RBAC, and encryption
- Up to 99.99% uptime with basic support
Pro
- Dedicated cloud deployment
- Unlimited RAM and multiple databases
- Active-active multi-region and private connectivity
- Up to 99.999% uptime
* Pricing information is for reference only. Please refer to the latest announcement on Redis's official website.