Open-Source Database Index

On a daily basis, we track top open-source database management systems

We have launched this dedicated index for OS databases because databases are crucial component of the modern IT infrastructure and their open-source development rapidly gains momentum. According to DB-Engines, in 2021 open-source database solutions have finally overcome their closed-source rivals by popularity.

We automatically source the full list of open-source databases from and calculate daily updated metrics based on Github data. Then we include only top databases with 500+ Github stars and 3+ active contributors (made commits in the repo in the last 12 months).

Show legend
  • Age — Github repo age in years
  • ⭐️ — Github repo stars
  • ⑂ — Github repo forks
  • NC — new contributors, who made their first commit in the repo in the last 12 months
  • AC — active contributors, who made commits in the repo in the last 12 months
  • TC — total contributors, who made commits in the repo since its inception
  • SG — annual star growth
  • ACG — annual active contributors growth
  • TCG — annual total contributors growth
  • HHI — the Herfindahl-Hirschman Index calculated by share of commits (decentralization metric)

Are you looking for more OS indexes?

Check out insightful open-source database analysis. We also created indexes for Open-Source Headless CMSs and Open-Source Static Site Generators. What are other OS areas that need to be covered? Don’t hesitate to share your ideas with the curator, Bogdan Semenov ([email protected]).