head to head · open source
jaeger vs Logfire
jaeger has 23,368 GitHub stars, 3,222 forks, 547 open issues and last shipped 2 days ago. Logfire has 4,533 stars, 351 forks, 191 open issues and last shipped 2 days ago. jaeger leads on adoption by 416% (23,368 vs 4,533 stars). jaeger is written in Go under Apache-2.0; Logfire is written in Python under MIT. jaeger has attracted 14% as many forks as stars, Logfire 8%. jaeger was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (observability, opentelemetry), 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
| jaeger | Logfire | |
|---|---|---|
| GitHub stars | ★ 23K | ★ 4.5K |
| License | Apache-2.0 | MIT |
| Written in | Go | Python |
| Last push | 2026-11-03 | 2026-11-03 |
| Forks | ⑂ 3.2K | ⑂ 351 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick jaeger if
- You weight community size — 23K 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 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 jaeger
[![Slack chat][slack img]]( get in touch) [![Unit Tests][ci img]][ci] [![Coverage Status][cov img]][cov] [![Project+Community stats][community badge]][community stats] [![FOSSA Status][fossa img]][fossa] [![OpenSSF Scorecard][openssf img]][openssf] [![OpenSSF Best Practices][openssf bp img]][openssf bp] [![CLOMonitor][clomonitor img]][clomonitor] [![Artifact Hub][artifacthub img]][artifacthub] Jaeger a Distributed Tracing System 💥💥💥 Jaeger v2 is out! Read the blog post and try it out. Quick Start Get Jaeger running in seconds with Docker: For production deployments and more options, see the Getting Started…
read the full jaeger 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 jaeger or Logfire more popular?
jaeger has 23,368 GitHub stars and Logfire has 4,533. jaeger has the larger community by that measure.
Are jaeger and Logfire free?
Both are open source. jaeger is licensed under Apache-2.0 and Logfire under MIT. Neither carries a licence fee.
What is the difference between jaeger and Logfire?
jaeger is written in Go 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, jaeger or Logfire?
Choose jaeger if you want the larger community (23,368 stars) or its Apache-2.0 licence terms. Choose Logfire if its feature set, stack or MIT licence fits better. Both are self-hostable.