Open source key-value-store projects
Every project in the registry tagged key-value-store, ranked by real GitHub adoption.
A flexible distributed key-value database that is optimized for caching and other realtime workloads.
Fast persistent recoverable log and key-value store + cache, in C# and C++.
Distributed, in-memory key/value store and cache. It can be used as an embedded Go library and a language-independent service.
Infinispan is an open source data grid platform and highly scalable NoSQL cloud data store.
A fast, multi-threaded Redis® and Valkey alternative written in Rust: drop-in compatible, with full-text and vector search built in
Multi-Modal Database replacing MongoDB, Neo4J, and Elastic with 1 faster ACID solution, with NetworkX and Pandas interfaces, and bindings for C 99, C++ 17, Pyth
Related tags
Frequently asked questions
How many open source key-value-store projects are there?
This registry tracks 6 projects tagged key-value-store, with 40,779 GitHub stars between them. The most-adopted is valkey at 27,583 stars.
Are these key-value-store projects free to use?
Yes — 6 of the 6 carry an explicit open-source licence across 4 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which key-value-store project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these key-value-store projects still maintained?
6 of the 6 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.