KeyDB

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

KeyDB is ranked #11 of 24 in in-memory databases on Inferse. It runs on Linux, macOS, Self-hosted.

Compared on in-memory databases

Free plan: Yeskeydb.dev
Deployment: self-hostedkeydb.dev
Data persistence: Yeskeydb.dev
High availability: Yeskeydb.dev
SQL support: Nokeydb.dev
Vector search: Nokeydb.dev
Supported data models: strings, lists, sets, sorted sets, hashes, bitmaps, HyperLogLogs, streamskeydb.dev

Facts

Product: KeyDB is a high-performance, open-source database and a drop-in alternative to Redis.docs.keydb.dev · 2 Oct 2026
Performance: The maker says a single node can handle over 1 million operations per second and serve data with submillisecond latency.docs.keydb.dev · 2 Oct 2026
Data structures: KeyDB supports strings, hashes, lists, sets, sorted sets, bitmaps, hyperloglogs, geospatial indexes, and streams.docs.keydb.dev · 2 Oct 2026
Scaling: KeyDB supports horizontal scaling through active replication or cluster mode with a sharded dataset.docs.keydb.dev · 2 Oct 2026
Architecture: Its MVCC architecture allows snapshot queries, including SCAN and KEYS, to run concurrently without blocking existing workloads.docs.keydb.dev · 2 Oct 2026
Replication: KeyDB supports asynchronous multi-master replication across regions using a last-write-wins method.docs.keydb.dev · 2 Oct 2026
Persistence: KeyDB supports RDB snapshots and AOF command logging, with configurable durability preferences.docs.keydb.dev · 2 Oct 2026
Compatibility: KeyDB is compatible with the Redis API and protocol, and Redis client libraries work with it.docs.keydb.dev · 2 Oct 2026
Integrations: The maker lists Docker images, Ubuntu and Debian packages, CentOS RPM packages, and community Homebrew and Kubernetes Helm options.docs.keydb.dev · 2 Oct 2026
Security: KeyDB supports TLS on client connections, replication links, and the cluster bus, as well as authentication and ACLs.docs.keydb.dev · 2 Oct 2026
Security guidance: The maker recommends restricting network access to trusted clients and warns against exposing KeyDB directly to the internet.docs.keydb.dev · 2 Oct 2026
Support: Support is community-based and managed by the KeyDB team at Snap; the maker says paid support is unavailable.docs.keydb.dev · 2 Oct 2026
Intended users: The maker describes KeyDB as useful from small projects to workloads serving millions of users.docs.keydb.dev · 2 Oct 2026
History: The project began in 2019 as a multithreaded Redis fork and found a permanent home at Snap at the end of 2021.docs.keydb.dev · 2 Oct 2026
Purpose: KeyDB is an open source, in-memory database used as a database, cache, and message broker.docs.keydb.dev · 3 Oct 2026
Redis compatibility: KeyDB is compatible with the Redis API and protocol, and Redis clients work with KeyDB.docs.keydb.dev · 3 Oct 2026
Performance: The maker says a single KeyDB node benchmarks at over 1 million operations per second and that its multithreaded design outperforms Redis per node.docs.keydb.dev · 3 Oct 2026
Data structures: KeyDB supports strings, hashes, lists, sets, sorted sets, bitmaps, hyperloglogs, geospatial indexes, and streams.docs.keydb.dev · 3 Oct 2026
Persistence: KeyDB supports configurable RDB snapshots and AOF disk logging for persistence.docs.keydb.dev · 3 Oct 2026
Scaling and availability: KeyDB supports horizontal scaling through active replication or cluster mode, with high availability and automatic failover options.docs.keydb.dev · 3 Oct 2026
MVCC: Its MVCC architecture lets concurrent queries use database snapshots without blocking calls such as SCAN and KEYS.docs.keydb.dev · 3 Oct 2026
Multi-master: KeyDB supports asynchronous multi-master replication across regions using a last-write-wins method.docs.keydb.dev · 3 Oct 2026
Security: KeyDB offers TLS support for client connections, replication links, and the cluster bus, and its security guidance recommends restricting access to trusted clients.docs.keydb.dev · 3 Oct 2026
Security configuration: The security guide warns that authentication is optional and its password is stored in clear text in the configuration file; it recommends network protections and TLS.docs.keydb.dev · 3 Oct 2026
Deployment: Officially managed download options include Docker images, Ubuntu and Debian packages, CentOS RPM packages, and source builds.docs.keydb.dev · 3 Oct 2026
Additional deployment options: Community contributed options include Homebrew, a Kubernetes Helm chart, and an Arch Linux package.docs.keydb.dev · 3 Oct 2026
Operating systems: The documentation says Linux and macOS are developed and tested, recommends Linux for deployment, and notes there is no official Windows build support.docs.keydb.dev · 3 Oct 2026
Integrations: Because KeyDB is Redis-compatible, the maker says Redis client libraries can also be used with KeyDB.docs.keydb.dev · 3 Oct 2026
Support: Support is community-based and managed by the KeyDB team at Snap; the maker says paid support services are unavailable.docs.keydb.dev · 3 Oct 2026