In-Memory Databases Software

Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.

open-source

Kx Systems has a high-performance vector database, kdb+, with a built-in programming language, q, that sets the standard for time-series analytics.

Aerospike is a high-performing NoSQL database supporting high transaction volumes with low latency.

Dragonfly - Scalable in-memory datastore made simple

Clustering and highly scalable data distribution platform for Java

High-performance, distributed memory object caching system

Scalable datastore for metrics, events, and real-time analytics.

SAP HANA is an in-memory, column-oriented, relational database management system.

Heroic time series database.

Database for real-time transactions and analytics.

OpenTSDB is a distributed, scalable Time Series Database (TSDB) written on top of HBase.

KeyDB is fast NoSQL database with full compatibility for Redis APIs, clients, and modules.

In-memory JavaScript Datastore with Persistence