Garnet review
A broad, self-hosted Redis-compatible cache-store for teams that need persistence and scaling.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Garnet is an open-source remote cache-store from Microsoft Research for developers and teams building low-latency caching and key-value workloads. It uses the Redis RESP wire protocol, which supports compatibility with Redis clients, StackExchange.Redis, and redis-cli. Deployments can run on Windows, macOS, Linux, Docker, Azure Storage, local storage, SSD, or through .NET-based self-hosting. Its cache targets include application data, key-value data, strings, lists, sets, sorted sets, and hashes.
Its feature depth suits workloads that need more than an in-memory cache. Garnet supports raw strings, complex data structures, transactions, stored procedures, checkpointing, recovery, append-only-file durability, and tiered storage across memory, SSD, and cloud storage. Cluster sharding and dynamic key migration support scaling, while primary-replica replication and failover support high availability. TLS and password-based authentication address core access controls, and C# server extensions and modules provide an extension path for .NET-oriented teams. These capabilities make Garnet a strong fit for self-hosted environments that want Redis client compatibility alongside persistence and storage flexibility.
The main operational consideration is cluster coordination: Garnet's cluster mode requires a separate control plane for failure detection and failover, and the project does not implement leader election. Teams should account for that additional architecture when planning highly available deployments. Its 2024 founding year also points to a shorter project history than established alternatives. Garnet is a good choice for teams comfortable managing self-hosted infrastructure, especially across Windows, macOS, and Linux. Teams wanting built-in cluster control-plane behavior or a longer-established project should consider another caching option.
Garnet pros and cons
- Where it wins
- Runs on Windows, macOS, Linux, Docker, and .NET self-hosting
- Supports persistence, tiered storage, replication, sharding, and failover
- Works with Redis clients, StackExchange.Redis, and redis-cli
- Where it doesn't
- Cluster mode requires a separate control plane for failover
- Leader election is not implemented by the project itself
- Founded in 2024, so it has less history than established alternatives
Garnet fact sheet, pricing and score →
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