Logfire

Observability platform from the Pydantic team built on OpenTelemetry, with native Python/Pydantic integration.

logging-frameworksRecently released
66
Hero Score
Popularity
74
Performance
85
Ecosystem
25
Maturity
61
Dev Experience
85
⭐ 4,276 stars⬇ 4.2M downloads/wkFirst release: Apr 2024Last release: May 2026
Async Support: YesPlugin Extensions: GrowingSpeed: FastDoc Quality: HighLearning Curve: Easy

Pros

  • OpenTelemetry-based with rich integrations
  • First-class Pydantic and FastAPI support
  • Hosted UI for traces, logs, and metrics

Cons

  • Hosted backend is a paid SaaS
  • Younger ecosystem than alternatives
  • Vendor lock-in for hosted features

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