Redis is an in-memory database that persists on disk. The data model is key-value, but many different kind of values are supported: Strings, Lists, Sets, Sorted Sets, Hashes, Streams, HyperLogLogs, Bitmaps.

Distributed reliable key-value store for the most critical data of a distributed system

An efficient, small mobile key-value storage framework developed by WeChat. Works on Android, iOS, macOS, Windows, and POSIX.

Distributed transactional key-value database, originally created to complement TiDB

An embedded key/value database for Go.

Fast key-value DB in Go.

🥑 ArangoDB is a native multi-model database with flexible data models for documents, graphs, and key-values. Build high performance applications using a convenient SQL-like query language or JavaScript extensions.

A new project to resume development on the formerly open-source Redis project. We're calling it Valkey, since it's a twist on the key-value datastore.

Apache ZooKeeper

Garnet is a remote cache-store from Microsoft Research that offers strong performance (throughput and latency), scalability, storage, recovery, cluster sharding, key migration, and replication features. Garnet can work with existing Redis clients.

immudb - immutable database based on zero trust, SQL/Key-Value/Document model, tamperproof, data change history

BuntDB is an embeddable, in-memory key/value database for Go with custom indexing and geospatial support

Lightweight, fast and reliable key/value storage engine based on Bitcask.

A generic dynamo implementation for different k-v storage engines

Lightweight and blazing fast key-value database written in pure Dart.

A simple, fast, embeddable, persistent key/value store written in pure Go. It supports fully serializable transactions and many data structures such as list, set, sorted set.

🔩 A relentless key-value store for the browser.

Distributed in-memory object store. It can be used as an embedded Go library and a language-independent service.

Simple key-value storage with support for multiple backends

Redis re-implemented with SQLite