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Keva is an open source (Apache 2.0 licensed), JVM off-heap in-memory data store, used as a database or cache, can be a drop-in replacement for Redis.

Keva provides access to mutable data structures (String, Set, Sorted Set, List, Hash) via a set of commands, which are sent using a server-client model with TCP sockets and a RESP protocol.


  • Low latency in-memory key-value database
  • Compatible with Redis protocol
  • Multithreading engine helps to maximize the use of system's resources
  • Persistence in-memory data to disk
  • Various backend databases to choose: LevelDB, LMDB, RocksDB, BoltDB, etc. (WIP)

Major dependencies