For developers, who are building real-time data-driven applications, Redis is the preferred, fastest, and most feature-rich cache, data structure server, and document and vector query engine.

• UpdatedFeb 20, 2026
• C

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

• UpdatedFeb 20, 2026
• Go

A modern replacement for Redis and Memcached

• UpdatedFeb 20, 2026
• C++

A flexible distributed key-value database that is optimized for caching and other realtime workloads.

• UpdatedFeb 19, 2026
• C

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

• UpdatedFeb 11, 2026
• C++

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

• UpdatedFeb 20, 2026
• Rust

Fast key-value DB in Go.

• UpdatedFeb 12, 2026
• Go

An embedded key/value database for Go.

• UpdatedMar 2, 2018
• 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.

• UpdatedFeb 20, 2026
• C++

Apache ZooKeeper

• UpdatedFeb 19, 2026
• Java

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.

• UpdatedFeb 20, 2026
• C#

Open-source, low-latency key/value engine built on Valkey with hierarchical storage tiers.

• UpdatedFeb 12, 2026
• C

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

• UpdatedFeb 12, 2026
• Go

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

• UpdatedFeb 10, 2026
• Go

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

• UpdatedSep 10, 2024
• Go

Redis re-implemented with SQL

• UpdatedFeb 4, 2026
• Go

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

• UpdatedJun 28, 2024
• Dart

A generic dynamo implementation for different k-v storage engines

• UpdatedMay 20, 2024
• C

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.

• UpdatedFeb 8, 2026
• Go

Distributed, in-memory key/value store and cache. It can be used as an embedded Go library and a language-independent service.

• UpdatedJan 29, 2026
• Go