Show HN: Otel-GUI – an open source OpenTelemetry viewer for dev and debug

Category: observability

Tags: observability, opentelemetry, debugging, distributed-tracing, devtools

Score: 7.0/10 (Innovation: 5, Technical: 7, Documentation: 9, Utility: 7)

Otel-GUI is a zero-config, in-memory OpenTelemetry trace viewer for local development and debugging. It's interesting because it acts as a drop-in collector replacement with real-time updates, a service map, and rich search/filtering, all without requiring a database or complex setup.

Target audience: backend devs, devops

Repository: https://github.com/metafab/otel-gui · TypeScript · MIT · 43 stars

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