gajus/roarr

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

1138 stars · 41 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Roarr is a fast, structured JSON logger for Node.js and browser environments that requires no initialization or configuration. It decouples log transports, supports environment-variable-based configuration, and includes a CLI program for pretty-printing logs.

Use cases

• add structured JSON logging to a Node.js application
• log from library code without requiring host app configuration
• correlate logs between application and dependency code
• pretty-print JSON logs with a CLI tool
• enable logging via environment variables in production
• capture browser-side logs as structured data
• replace Winston or Bunyan with a zero-init logger
• pipe logs to external transport processes

When to choose

• you need structured JSON logs that are safe to parse
• you are writing libraries that must log without app-level configuration
• you want logging enabled/disabled via environment variables
• you need the same logging API in Node.js and the browser
• you want transports decoupled into external processes

When to avoid

• you need built-in log transports, rotation, or shipping to external services
• you prefer human-readable text logs by default
• you want a logger with extensive plugin ecosystem like Winston
• your team expects logging enabled without any environment setup

Facets

library · maturity active

logging serialization cli developer-tools developer-tools backend web-development browser -logger structured-logging zero-configuration environment-variable-config transport-decoupling debugging nodejs javascript typescript

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