head to head · open source
Prometheus vs rxdb
Prometheus has 66,906 GitHub stars, 10,969 forks, 890 open issues and last shipped yesterday. rxdb has 23,424 stars, 1,183 forks, 17 open issues and last shipped yesterday. Prometheus leads on adoption by 186% (66,906 vs 23,424 stars). Prometheus is written in Go under Apache-2.0; rxdb is written in TypeScript under Apache-2.0. Prometheus has attracted 16% as many forks as stars, rxdb 5%. Prometheus 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 | rxdb | |
|---|---|---|
| GitHub stars | ★ 67K | ★ 23K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Go | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 11K | ⑂ 1.2K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Prometheus if
- You weight community size — 67K 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 rxdb if
- You want the rxdb feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and rxdb fits your workflow better
About Prometheus
Prometheus Visit prometheus.io for the full documentation, examples and guides. [ ][quay] [ ][hub] Prometheus, a Cloud Native Computing Foundation project, is a systems and service monitoring system. It collects metrics from configured targets at given intervals, evaluates rule expressions, displays the results, and can trigger alerts when specified conditions are observed. The features that distinguish Prometheus from other metrics and monitoring systems are: A multi dimensional data model (time series defined by metric name and set of key/value dimensions) PromQL, a powerful and flexible query language to…
read the full Prometheus overview →
About rxdb
A fast, local first , reactive Database for JavaScript Applications What is RxDB? RxDB (short for R eactive D ata b ase) is a local first , NoSQL database for JavaScript Applications. Reactive means that you can not only query the current state, but subscribe to all state changes like the result of a query or even a single field of a document. This is great for UI based realtime applications in a way that makes it easy to develop and also has great performance benefits. Use the quickstart, read the documentation or explore the example projects. Used by many RxDB is a proven technology used by thousands of…
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Frequently asked questions
Is Prometheus or rxdb more popular?
Prometheus has 66,906 GitHub stars and rxdb has 23,424. Prometheus has the larger community by that measure.
Are Prometheus and rxdb free?
Both are open source. Prometheus is licensed under Apache-2.0 and rxdb under Apache-2.0. Neither carries a licence fee.
What is the difference between Prometheus and rxdb?
Prometheus is written in Go and rxdb in TypeScript. 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 rxdb?
Choose Prometheus if you want the larger community (66,906 stars) or its Apache-2.0 licence terms. Choose rxdb if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.