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Built for today’s modern web applications, KeyDB is both your cache and database

Fully compatible with Redis & Elasticache, KeyDB has a superior architecture that provides more throughput and offers powerful new features

  • Operate in memory and on disk
  • Effortlessly scale KeyDB both vertically and horizontally
  • Enable sub-millisecond latencies at scale
  • Serve data cross-region with Multi-Master replication

Getting Started with KeyDB

Github Page

Click here to take a look at the Github page for KeyDB. 

Here you can see the source code, create issues, pull requests. and see details about updates to the project.

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KeyDB Open Source

Click here to find out more about what KeyDB Open Source has to offer.

See an overview of features, tools and some great places to get started.

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KeyDB Docs

Check out KeyDB’s extensive documentation here.

Here you will find detailed instructions about using KeyDB, how KeyDB works, tutorials and best practices.

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Over 3 million downloads

Latest News

KeyDB is a Faster, Drop-In Alternative to Redis

  • KeyDB maintains full compatibility with Redis modules, API and protocol.
  • Seamlessly drop in KeyDB and maintain full compatibility with your existing clients, scripts and configurations.

Performance is Key

keydb_vs_elasticache_vs_redis
keydb_vs_redis6_tls
scan_perf
Check out this live benchmark where we compare Redis6 and KeyDB performance using TLS encryption
Play Video

See a detailed blog post that walks through benchmarking with TLS encryption here

Multi-Master Mode

Multi-Master mode uses a single replicated dataset across many nodes to serve both read and write operations

Nodes can be replicated cross-region to offer submillisecond latencies to local clients

Cluster

Cluster

Cluster mode allows unlimited read and write scaling by splitting the dataset across shards.

This allows unlimited scaling, and also support high availability through replica nodes.

New Built-in Commands

  • KeyDB offers new community driven commands that enable you to do more with your data
  • Expire individual members of a SET, SORTED SET, or HASH with the EXPIREMEMBER command
  • Schedule LUA scripts to run with KeyDB's internal scheduler, KEYDB.CRON
  • BITOP LSHIFT, BITOP RSHIFT, OBJECT LASTMODIFIED are other commands added in addition to what is provided with vanilla Redis

# individually expire members of a set

$ keydb-cli>  SADD  myset  member1  member2  member3
OK
$ keydb-cli> EXPIREMEMBER  myset  member2  3600
OK

# schedule lua scripts to run with keydb.cron

$ keydb-cli> KEYDB>CRON mycrontask REPEAT 60000 ‘redis.call(‘INCR’, KEYS[1])
OK

# update startup.js script with your function:
 
function concat(key1, key2) {
var str1 = redis.call(‘get’, key1);
var str2 = redis.call(‘get’, key2);
return str1 + str2;
}
keydb.register(concat);
 
# load your functions and run them in KeyDB
 
$ keydb-cli> set keyA foo
OK
$ keydb-cli> set keyB bar
OK
$ keydb-cli> concat keyA keyB
“foobar”

Add Commands and functionality

  • Add your own commands and functionality using JavaScript with the ModJS module.
  • In addition to supporting LUA, KeyDB also supports JavaScript using the powerful V8 JIT engine
  • ModJS lets you write functions in javascript that can in turn be called directly by KeyBD. The example to the left shows and example of a javascript function that would be loaded with the module. It can then be called directly from your client.

Looking to Learn More About KeyDB Open Source?

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