Caching & In-Memory Stores

In-memory data stores and caching libraries for speeding up reads and sharing state.

7 tools compared

Compare side by side

Redis

redis/redis

In-memory data store for caching, queues and pub/sub; back to open source (AGPLv3) since Redis 8.

Valkey

valkey-io/valkey

Linux Foundation, BSD-licensed fork of Redis adopted by AWS, Google Cloud and major Linux distros.

Memcached

memcached/memcached

Simple, battle-tested distributed memory cache for key-value lookups.

Dragonfly

dragonflydb/dragonfly

Multi-threaded, Redis- and Memcached-compatible in-memory store built for high throughput.

Garnet

microsoft/garnet

Microsoft Research's RESP-compatible cache store in .NET with high throughput and low latency.

Caffeine

ben-manes/caffeine

High-performance in-process caching library for Java, successor to Guava's cache.

KeyDB

Snapchat/KeyDB

Multi-threaded Redis fork from Snap; development has slowed and Valkey/Dragonfly are preferred.

Comparison

Click a column to sort. “#” is the curated ranking, with the most widely used first.


1	RedisPopular In-memory data store for caching, queues and pub/sub; back to open source (AGPLv3) since Redis 8.	77.5k	n/a	n/a	today	89
2	ValkeyTrending Linux Foundation, BSD-licensed fork of Redis adopted by AWS, Google Cloud and major Linux distros.	27.6k	n/a	n/a	5d ago	81
3	Memcached Simple, battle-tested distributed memory cache for key-value lookups.	14.3k	n/a	n/a	2mo ago	76
4	DragonflyRising Multi-threaded, Redis- and Memcached-compatible in-memory store built for high throughput.	31.8k	n/a	n/a	5d ago	82
5	Garnet Microsoft Research's RESP-compatible cache store in .NET with high throughput and low latency.	12.1k	n/a	n/a	2d ago	75
6	CaffeinePopular High-performance in-process caching library for Java, successor to Guava's cache.	17.9k	n/a	n/a	2w ago	78
7	KeyDBLegacy Multi-threaded Redis fork from Snap; development has slowed and Valkey/Dragonfly are preferred.	12.5k	n/a	n/a	3w ago	75