The Best Open-Source Databases

Based on github stars

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

 

Rank Change 2021 Nov Project Features Stars Activity Rating
1 - 1 Elasticsearch Search Engine 61,962 10.0 9.64%
2 - 2 Redis Key-value 57,667 9.8 8.97%
3 - 3 prometheus Time Series 45,583 9.8 7.09%
4 - 4 etcd Key-value 41,906 9.9 6.52%
5 - 5 Apache Spark Relational 34,423 10.0 5.35%
6 - 6 LevelDB Key-value 31,258 5.5 4.86%
7 ↑↑ 5 12 ClickHouse Column 26,167 10.0 4.07%
8 - 8 cockroach Relational 26,110 10.0 4.06%
9 ↓↓ 7 RethinkDB Document 25,778 9.0 4.01%
10 9 InfluxDB Time Series 24,504 9.4 3.81%
11 10 RocksDB Key-value 24,025 9.9 3.74%
12 11 MongoDB Document 22,810 10.0 3.55%
13 - 13 Realm Relational 15,646 9.4 2.43%
14 - 14 PouchDB Document 15,366 7.5 2.39%
15 - 15 Presto Relational 14,204 9.9 2.21%
16 - 16 TimescaleDB Time Series 14,076 9.6 2.19%
17 - 17 ArangoDB Graph Document 12,679 9.9 1.97%
18 - 18 Memcached Key-value 12,262 8.2 1.91%
19 20 PostgreSQL Relational 11,344 10.0 1.76%
20 19 Neo4j Graph 10,665 10.0 1.66%
21 22 QuestDB Time Series 9,717 9.6 1.51%
22 23 MySQL Relational 8,499 9.9 1.32%
23 ↓↓ 21 SSDB Key-value 7,972 0.0 1.24%
24 - 24 Apache Cassandra Column 7,673 9.7 1.19%
25 ↑↑ 27 KeyDB Key-value 5,929 9.3 0.92%
26 25 Graphite Time Series 5,562 5.0 0.87%
27 26 CouchDB Document 5,498 9.6 0.86%
28 - 28 Greenplum Relational 5,482 9.9 0.85%
29 - 29 Hazelcast Relational 5,120 9.9 0.80%
30 31 Apache HBase Column 4,705 9.8 0.73%
31 ↑↑ 33 MariaDB Relational 4,557 9.9 0.71%
32 ↑↑↑ 35 Apache Hive Relational 4,547 9.7 0.71%
33 ↓↓↓ 30 OrientDB Key-value Document 4,527 9.6 0.70%
34 - 34 Apache Ignite Key-value Relational 4,330 9.8 0.67%
35 ↓↓↓ 32 Apache Solr Search Engine 4,307 0.0 0.67%
36 - 36 H2 Relational 3,525 9.4 0.55%
37 38 Hive Key-value 3,311 7.7 0.52%
38 ↑↑↑ 41 SQLite Relational 3,241 9.8 0.50%
39 ↓↓ 37 RavenDB Document 3,123 9.9 0.49%
40 39 Ehcache Key-value 1,834 7.1 0.29%
41 40 Sphinx Search Engine 1,718 0.0 0.27%
42 ↑↑ 8 50 age - 1,180 8.1 0.18%
43 ↑↑ 45 Firebird Relational 1,023 9.5 0.16%
44 ↓↓ 42 Infinispan Key-value 1,012 9.8 0.16%
45 ↓↓ 43 Apache Phoenix Relational 957 7.9 0.15%
46 ↓↓ 44 Apache Accumulo Column 952 9.8 0.15%
47 - 47 Apache Impala Relational 886 9.6 0.14%
48 - 48 Aerospike Key-value NoSQL 812 7.7 0.13%
49 ↓↓↓ 46 RRDtool Time Series 810 6.6 0.13%
50 49 Riak KV Key-value 601 4.8 0.09%
  • 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.