head to head · open source
Prometheus vs orientdb
Prometheus has 66,106 GitHub stars, 10,840 forks, 890 open issues and last shipped yesterday. orientdb has 4,984 stars, 869 forks, 360 open issues and last shipped yesterday. Prometheus leads on adoption by 1,226% (66,106 vs 4,984 stars). Prometheus is written in Go under Apache-2.0; orientdb is written in Java under Apache-2.0. Prometheus has attracted 16% as many forks as stars, orientdb 17%. orientdb was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Prometheus | orientdb | |
|---|---|---|
| GitHub stars | ★ 66K | ★ 5.0K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Go | Java |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 11K | ⑂ 869 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Prometheus if
- You weight community size — 66K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick orientdb if
- You want the orientdb feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and orientdb fits your workflow better
About Prometheus
Prometheus is an open source monitoring system and time series database, part of the Cloud Native Computing Foundation ecosystem. It collects metrics from configured targets at defined intervals, evaluates alerting rules, and visualizes results. Designed for reliability in dynamic environments, it operates without reliance on distributed storage, ensuring each server node functions independently.
read the full Prometheus overview →
About orientdb
OrientDB is an open source multi model NoSQL DBMS written in Java under the Apache 2.0 license. It belongs to the database ecosystem as one product supporting graph, document, reactive, full text, geospatial, and object oriented concepts. It can run distributed in multi master mode and offers SQL alongside ACID transactions.
read the full orientdb overview →
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Frequently asked questions
Is Prometheus or orientdb more popular?
Prometheus has 66,106 GitHub stars and orientdb has 4,984. Prometheus has the larger community by that measure.
Are Prometheus and orientdb free?
Both are open source. Prometheus is licensed under Apache-2.0 and orientdb under Apache-2.0. Neither carries a licence fee.
What is the difference between Prometheus and orientdb?
Prometheus is written in Go and orientdb in Java. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Prometheus or orientdb?
Choose Prometheus if you want the larger community (66,106 stars) or its Apache-2.0 licence terms. Choose orientdb if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.