The Best Open-Source Databases

Based on github stars

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

Filtering projects by: Time Series X

Rank Change 2025 Jun Project Features Stars Activity Rating
3 - 3 prometheus Time Series 64,474 9.9 6.95%
12 ↓ 11 InfluxDB Time Series 31,547 9.3 3.40%
15 - 15 TimescaleDB Time Series 22,887 9.8 2.47%
18 ↑↑ 20 QuestDB Time Series 17,039 9.8 1.84%
32 - 32 Graphite Time Series 6,092 7.6 0.66%
49 - 49 RRDtool Time Series 1,098 5.2 0.12%
  • 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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