Best Redis Alternatives 2026
Discover the best Redis alternatives for 2026. Compare Dragonfly, KeyDB, Memcached, Valkey and Garnet on performance, licensing and functionality.
At MG Software, we recommend Valkey as a direct Redis replacement for teams wanting open-source licensing certainty. For maximum performance, we choose Dragonfly as a drop-in upgrade.
Why do people look for alternatives to Redis is an open-source in-memory data structure store used as a database, cache and message broker. It supports strings, hashes, lists, sets, sorted sets, streams and more with sub-millisecond latency.?
After Redis Ltd changed to a dual license (RSALv2/SSPL) in 2024, many teams are seeking truly open-source alternatives. Additionally, newer tools offer better multi-threading, higher throughput and lower memory costs.
Best alternatives
Dragonfly
Modern in-memory datastore supporting Redis and Memcached protocols with a multi-threaded architecture delivering up to 25x higher throughput at lower memory usage.
Pros
- +Up to 25x higher throughput than Redis thanks to multi-threaded architecture
- +Redis protocol compatible — drop-in replacement without code changes
- +Significantly lower memory usage through efficient data structures
Cons
- -Younger project with a smaller ecosystem of modules and extensions
- -Some advanced Redis commands are not yet fully supported
KeyDB
Multi-threaded fork of Redis with active replication, MVCC and Flash storage support for datasets larger than available memory.
Pros
- +Multi-threaded — utilizes all CPU cores unlike single-threaded Redis
- +Active-Active replication for high availability without sentinel
- +Flash storage support for cost-effective large datasets
Cons
- -Less active development after acquisition by Snap
- -Smaller community and less documentation than Redis
Memcached
The original high-performance distributed memory caching system, designed for simple key-value caching with a straightforward API and excellent horizontal scalability.
Pros
- +Extremely simple and proven stable for pure caching workloads
- +Multi-threaded out of the box with excellent horizontal scalability
- +Minimal memory overhead per key due to simple data structure
Cons
- -No support for complex data structures like sorted sets or streams
- -No persistence — all data is lost on restart
Valkey
Community-driven open-source fork of Redis under the Linux Foundation, created in response to the Redis license change with a full BSD license.
Pros
- +Truly open-source under BSD license — no licensing risks
- +Full Redis compatibility as a direct fork
- +Backed by Linux Foundation with contributions from AWS, Google and Oracle
Cons
- -Still a young project that needs to prove long-term support
- -Must develop its own innovation roadmap independently from Redis
Garnet
High-performance cache store developed by Microsoft Research, written in C# on .NET with RESP protocol compatibility and advanced cluster support.
Pros
- +Extremely high throughput thanks to innovative storage architecture from Microsoft Research
- +Redis RESP protocol compatible for easy migration
- +Open-source under MIT license with active Microsoft support
Cons
- -Requires .NET runtime which may not be desired in all environments
- -Still in early stages with a limited ecosystem and community
What to consider when switching?
- Check if your used Redis commands and data structures are supported
- Compare license terms with your company policy and compliance requirements
- Evaluate multi-threading and memory efficiency for your workload
- Assess available client libraries for your programming language
Which alternative does MG Software recommend?
At MG Software, we recommend Valkey as a direct Redis replacement for teams wanting open-source licensing certainty. For maximum performance, we choose Dragonfly as a drop-in upgrade.
Frequently asked questions
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