KeyDB
by KeyDB · Multithreaded open source drop-in alternative to Redis
33.4 — BenchRank score out of 100
Screenshots of KeyDB
Homepage
Overview
KeyDB is an open source in-memory database, backed by Snap, offered as a drop-in alternative to Redis. It is multithreaded, benchmarking at over 1 million ops/sec on a single node, and supports the Redis data structures plus RDB and AOF persistence. Scaling is vertical per node, then horizontal through active replication or sharded cluster mode.
- Best for
- Teams running Redis workloads that need more throughput per node or multi-master replication
- Pricing
- No prices are shown; the page describes KeyDB as fully open source, with downloads via Docker, DEB/RPM packages and source builds.
- Runs on
- LinuxSelf-hosted
Strengths and trade-offs
Strengths
- Multithreaded; a single node benchmarks above 1 million ops/sec
- Drop-in alternative that maintains parity with the Redis feature set
- Active-replica failover needs no separate sentinel nodes
- MVCC lets SCAN and KEYS run without blocking other workloads
Trade-offs
- Cross-region multi-master resolves conflicts by last write wins
- FLASH storage, JSON, multi-tenancy and RAFT are roadmap, not shipped
- TLS adds CPU overhead, offset only by running more worker threads
How this score is made up
Each dimension is scored out of 100 and combined into the headline score using fixed weights.
- MCP support
- 0 out of 100
- Documentation
- 60 out of 100
- Agent friendliness
- 61 out of 100
- Changelog
- 25 out of 100
- Marketing site structure
- 50 out of 100
- Operational trust
- 0 out of 100
Measured, but not part of the score
Useful to know, but not a mark for or against the product — so these do not affect the ranking.
- Openness
- 85 out of 100
- Maintenance
- 20 out of 100
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