head to head · open source
Prometheus vs SigNoz
Prometheus has 66,906 GitHub stars, 10,969 forks, 890 open issues and last shipped yesterday. SigNoz has 32,509 stars, 2,573 forks, 1,557 open issues and last shipped yesterday. Prometheus leads on adoption by 106% (66,906 vs 32,509 stars). Prometheus is written in Go under Apache-2.0; SigNoz is written in TypeScript under a custom or non-standard licence. Prometheus has attracted 16% as many forks as stars, SigNoz 8%. SigNoz was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (metrics, monitoring), so they are genuine substitutes rather than adjacent tools.
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 | SigNoz | |
|---|---|---|
| GitHub stars | ★ 67K | ★ 33K |
| License | Apache-2.0 | Custom / other |
| Written in | Go | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 11K | ⑂ 2.6K |
| 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 SigNoz if
- You want the SigNoz feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches TypeScript
- You evaluated both and SigNoz 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 SigNoz
中文 · Deutsch · Português SigNoz is an open source observability platform built on OpenTelemetry. We’re building an enterprise grade alternative to fragmented monitoring stacks, with logs, metrics, traces, alerts, and dashboards in one place. Choose how to run SigNoz SigNoz Cloud (Recommended) Fully managed SigNoz with a 30 day free trial, no credit card required, usage based pricing that starts at $49, and regional data hosting. Start free → Enterprise Enterprise Cloud, BYOC, or Enterprise Self Hosted with compliance, support, custom retention, RBAC, ingestion controls, data residency, and region selection…
read the full SigNoz overview →
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Frequently asked questions
Is Prometheus or SigNoz more popular?
Prometheus has 66,906 GitHub stars and SigNoz has 32,509. Prometheus has the larger community by that measure.
Are Prometheus and SigNoz free?
Both are open source. Prometheus is licensed under Apache-2.0, and SigNoz has no licence declared in this registry. Both are free to self-host.
What is the difference between Prometheus and SigNoz?
Prometheus is written in Go and SigNoz 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 SigNoz?
Choose Prometheus if you want the larger community (66,906 stars) or its Apache-2.0 licence terms. Choose SigNoz if its feature set, stack or Custom / other licence fits better. Both are self-hostable.