head to head · open source
Prometheus vs pgdog
Prometheus has 66,899 GitHub stars, 10,960 forks, 890 open issues and last shipped yesterday. pgdog has 5,593 stars, 310 forks, 208 open issues and last shipped 2 days ago. Prometheus leads on adoption by 1,096% (66,899 vs 5,593 stars). Prometheus is written in Go under Apache-2.0; pgdog is written in Rust under AGPL-3.0. Prometheus has attracted 16% as many forks as stars, pgdog 6%. 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 | pgdog | |
|---|---|---|
| GitHub stars | ★ 67K | ★ 5.6K |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | Go | Rust |
| Last push | 2026-11-02 | 2026-11-01 |
| Forks | ⑂ 11K | ⑂ 310 |
| 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 pgdog if
- You want the pgdog feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Rust
- You evaluated both and pgdog 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 pgdog
PgDog is an open source proxy for scaling PostgreSQL. It supports connection pooling, load balancing queries and sharding entire databases. Written in Rust, PgDog is fast, secure and can manage thousands of connections on commodity hardware. Documentation & 128216; PgDog documentation can be found here . Any questions? Chat with us on Discord . Enterprise edition & 127970; Enterprise edition (EE) documentation is available here . Changelog is available here . Quick start Kubernetes Helm chart is here . To install it, run: AWS If you're using AWS RDS, you can deploy PgDog using one of two supported methods: 1…
read the full pgdog overview →
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Frequently asked questions
Is Prometheus or pgdog more popular?
Prometheus has 66,899 GitHub stars and pgdog has 5,593. Prometheus has the larger community by that measure.
Are Prometheus and pgdog free?
Both are open source. Prometheus is licensed under Apache-2.0 and pgdog under AGPL-3.0. Neither carries a licence fee.
What is the difference between Prometheus and pgdog?
Prometheus is written in Go and pgdog in Rust. 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 pgdog?
Choose Prometheus if you want the larger community (66,899 stars) or its Apache-2.0 licence terms. Choose pgdog if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.