Prometheus vs SigNoz
Updated June 2026 · A structured head-to-head comparison.
Open-source metrics and alerting.
The verdict
Both Prometheus and SigNoz are credible monitoring tools, and the right pick comes down to your priorities.
Prometheus — Open-source metrics and alerting.
Choose SigNoz if you'd rather have broader platform coverage. Open-source observability.
Prometheus vs SigNoz: side by side
| Dimension | Prometheus | SigNoz |
|---|---|---|
| Starting price | Free | Free |
| Free plan | Yes | Yes |
| Pricing model | Open source | Freemium |
| Best for | Devops Teams, Developers | Developers, Sre |
| Platforms | Self Hosted | Web, Self Hosted, ApiWinner |
| Rating | 4.6/5 | 4.5/5 |
Prometheus key facts
- Vendor
- CNCF
- Pricing
- Open source — Free
- Free tier
- Yes
- Platforms
- Self Hosted
- Best for
- Devops Teams, Developers
- Editor rating
- 4.6 / 5
- Founded
- 2012
- Headquarters
- Open source (CNCF)
SigNoz key facts
- Vendor
- SigNoz
- Pricing
- Freemium — Free
- Free tier
- Yes
- Platforms
- Web, Self Hosted, Api
- Best for
- Developers, Sre
- Editor rating
- 4.5 / 5
- Founded
- 2021
- Headquarters
- Remote
Frequently asked questions
Is Prometheus better than SigNoz?
Neither is universally better — Prometheus edges ahead on overall rating, but the best choice depends on price, platforms, and your use case. See the side-by-side table above.
Is Prometheus or SigNoz cheaper?
Prometheus is the more affordable of the two to get started, at free. Prometheus starts at free; SigNoz starts at free.
Can Prometheus replace SigNoz?
Yes for most teams — both are monitoring tools with heavily overlapping features. The main trade-offs are pricing and platform support, covered in the comparison above.