otel-tui – terminal-based observability viewer

otel-tui is a terminal-based observability viewer that lets you inspect telemetry data directly from a text user interface.

It can receive OpenTelemetry data over OTLP, ingest Zipkin traces, scrape Prometheus metrics, and accept Datadog traces, metrics, and logs, making it a handy local tool for exploring application behaviour without needing a full browser-based observability stack.

This is free and open source software.

Key Features

• Displays traces with filtering and detailed trace information.
• Includes span and topology views to help examine service relationships.
• Shows metric streams with filtering and charting for selected metrics.
• Displays logs, supports log filtering, and links logs to related traces or spans.
• Supports OpenTelemetry, Zipkin (Traces), Prometheus (Metrics), and Datadog (Traces, Metrics, Logs) formats.
• Offers multiple installation methods including Homebrew, Go install, Docker, Docker Compose, Nix, and release binaries.

Website: github.com/ymtdzzz/otel-tui
Support:
Developer: Y.Matsuda
License: Apache License 2.0

otel-tui is written in Go. Learn Go with our recommended free books and free tutorials.

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