mime-logger

Simple, opinionated Node.js logger with colored output, file logging, child logger support, and zero config to get started. Supports ESM + CJS.

Stable · 2.2.0npm install mime-logger

Installation

npm

npm install mime-logger

pnpm

pnpm add mime-logger

yarn

yarn add mime-logger

bun

bun add mime-logger

Quick start

import Logger from "mime-logger";

const logger = new Logger("app");

logger.info("Server started on port 3000");
logger.warn("Low memory warning");
logger.error("Failed to connect to database");

Features

• Three log levels — info, warn, error with color-coded output via ansis
• Named loggers — attach a name for easy log filtering
• Child loggers — create parent/child hierarchies with logger.child(name)
• Format presets — pretty, minimal, detailed, json out of the box
• Custom formats — format string with tokens or a full FormatFn callback
• File output — write to rotating log files with time-based path tokens
• Multiple outputs — console and file simultaneously
• Dual build — ESM and CJS, TypeScript types included