log4js-node/log4js-node

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

5828 stars · 751 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

log4js-node is a Node.js logging library ported from the log4js framework, offering configurable log levels, categories, layouts, and multiple appenders. It supports console and file logging with rolling, plus optional appenders for services like Logstash, Slack, and SMTP.

Use cases

• add structured logging to a node.js application
• rotate log files by size or date in node
• log express http requests
• set different log levels per module or category
• ship logs to logstash or loggly from node
• send error logs by email or slack

When to choose

• you need a mature, configurable logging framework for node.js with categories, levels, and layouts
• you want file log rotation or centralized log shipping via appenders
• you're running clustered node apps and need cluster-aware logging

When to avoid

• you want a minimal zero-config logger like pino or winston's simpler alternatives
• you need browser/client-side logging - this is node-only
• you expect log4j-compatible behavior, since the API differs

Facets

library · maturity active

logging developer-tools backend cli log4js log-appenders log-rolling express-middleware log-levels nodejs

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markdown · JSON · MCP: product_card(name="log4js-node/log4js-node")