The Best Open-Source Databases

Based on github stars

Top 50 Most Popular Open-Source Databases
by number of GitHub stars

Filtering projects by: Key-value X

Rank Change 2025 Oct Project Features Stars Activity Rating
2 - 2 Redis Key-value 76,708 9.7 8.08%
4 - 4 etcd Key-value 52,346 9.8 5.52%
9 ↓↓ 7 LevelDB Key-value 39,480 3.6 4.16%
11 - 11 RocksDB Key-value 32,180 9.7 3.39%
22 - 22 Memcached Key-value 14,291 8.5 1.51%
24 - 24 KeyDB Key-value 12,512 7.6 1.32%
29 ↓ 28 SSDB Key-value 8,321 0.0 0.88%
35 - 35 Apache Ignite Key-value Relational 5,082 9.8 0.54%
36 - 36 OrientDB Key-value Document 4,990 9.7 0.53%
39 - 39 Hive Key-value 4,389 4.5 0.46%
42 - 42 Ehcache Key-value 2,090 6.0 0.22%
45 ↑ 46 Aerospike Key-value NoSQL 1,382 8.8 0.15%
46 ↓ 45 Infinispan Key-value 1,355 9.8 0.14%
51 - 51 Riak KV Key-value 662 3.5 0.07%
  • Rating - the percentage of stars of a particular project from the total number.
  • Activity - a relative number between 0 and 10 representing the commits activity of a project.
    9+ meaning that the project is amongst the top 10% of most actively developed projects.
    5+ meaning that the project is amongst the top 50% of most active projects.

If you think we are missing a Open-Source Database or would like to make a correction or a suggegestion, please do not hesitate to contact us.

Note that this is an alternative DB-Engines ranking focused on open-source databases only.

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