head to head · open source
SigNoz vs Logfire
SigNoz has 32,525 GitHub stars, 2,576 forks, 1,557 open issues and last shipped yesterday. Logfire has 4,533 stars, 351 forks, 191 open issues and last shipped 2 days ago. SigNoz leads on adoption by 618% (32,525 vs 4,533 stars). SigNoz is written in TypeScript under a custom or non-standard licence; Logfire is written in Python under MIT. SigNoz has attracted 8% as many forks as stars, Logfire 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, observability), 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
| SigNoz | Logfire | |
|---|---|---|
| GitHub stars | ★ 33K | ★ 4.5K |
| License | Custom / other | MIT |
| Written in | TypeScript | Python |
| Last push | 2026-11-04 | 2026-11-03 |
| Forks | ⑂ 2.6K | ⑂ 351 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick SigNoz if
- You weight community size — 33K stars and counting
- You want the Custom / other license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Logfire if
- You want the Logfire feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and Logfire fits your workflow better
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 →
About Logfire
Pydantic Logfire: Know more. Build faster. From the team behind Pydantic Validation, Pydantic Logfire is an observability platform built on the same belief as our open source library: that the most powerful tools can be easy to use. What sets Logfire apart: Simple and Powerful: Logfire's dashboard is simple relative to the power it provides, ensuring your entire engineering team will actually use it. Python centric Insights: From rich display of Python objects, to event loop telemetry, to profiling Python code and database queries, Logfire gives you unparalleled visibility into your Python application's…
read the full Logfire overview →
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Frequently asked questions
Is SigNoz or Logfire more popular?
SigNoz has 32,525 GitHub stars and Logfire has 4,533. SigNoz has the larger community by that measure.
Are SigNoz and Logfire free?
Both are open source. SigNoz has no licence declared in this registry, and Logfire is licensed under MIT. Both are free to self-host.
What is the difference between SigNoz and Logfire?
SigNoz is written in TypeScript and Logfire in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, SigNoz or Logfire?
Choose SigNoz if you want the larger community (32,525 stars) or its Custom / other licence terms. Choose Logfire if its feature set, stack or MIT licence fits better. Both are self-hostable.