Welcome to Kotlin-redis

Kotlin-redis is a Redis library for Kotlin. It focuses on low footprint, performance and openness/extensibility.

Highlights

✅ Zero dependencies (except for SLF4J) - pure JDK/Kotlin code
✅ Streaming-first client, does not hold values in memory (InputStream for data transfer).
- String/ByteArray based API is provided purely as extension functions (buffer limit and charset configurable)
✅ Pipelining-first, for better performance, saving unnecessary round trips
- Non-pipeline (direct request/response) API is provided purely as extension functions on top
✅ Binary safe
✅ Redis transactions support
✅ Async SUBSCRIBE/PUBLISH support
✅ Developer friendly synchronous code, use VirtualThreads for scaling
✅ Connection pool included
✅ TLS support incl. mTLS (see TLS)
✅ Easily extendable if your favourite Redis command is missing
✅ Keeps track of Redis restarts - useful for detecting potential data loss in your app
✅ RedisLockService: distributed lock service (multiple locks, reentrant, auto lease renewing and deadlock detection)

Continue to the quick start guide.

JDK 25 or higher
Redis 6.2 or newer (only speaks RESP3 which has been available since 2020 - time to let go)
Not implemented yet (but easy to add yourself):
- ACL/AUTH
- Cluster
- Redis streams