JSPM

Strip ANSI escape codes from a string

ANSI escape codes for styling strings in the terminal

Terminal string styling done right

Wordwrap a string with ANSI escape codes

ANSI escape codes for manipulating the terminal

Slice a string with ANSI escape codes

Colored symbols for various log levels. Example: `✔︎ Success`

Easily add ANSI colors to your text and symbols in the terminal. A faster drop-in replacement for chalk, kleur and turbocolor (without the dependencies and rendering bugs).

Log by overwriting the previous output in the terminal. Useful for rendering progress bars, animations, etc.

Definitions of levels for logging purposes & shareable Symbol constants.

An mutable object-based log format designed for chaining & objectMode streams.

A logger for just about everything.

A collection of standard object serializers for Pino

CommonJS version - The smallest and fastest command-line coloring package on the internet

Minimal lightweight logging for JavaScript, adding reliable log level methods to any available console.log methods

Microsoft Azure SDK for JavaScript - Logger

Port of Log4js to work with node.

Environment-agnostic, ESM-friendly logger for simple needs.

The smallest and fastest command-line coloring package on the internet

Terminal string styling with tagged template literals

Colors, formatting and other tools for the console

A noop logger that conforms to the Log4j interface for modules to stub out internal logging

Logging utility used by Node Slack SDK

A logger for the Webpack ecosystem

Log things, prefixed with a timestamp.

The color gray, in ansi.

OpenTelemetry Collector Exporter allows user to send collected log records to the OpenTelemetry Collector

OpenTelemetry instrumentation for `winston` logger

Stream transformer that prefixes lines with timestamps and other things.

OpenTelemetry instrumentation for `bunyan` logger

Cloud Logging Client Library for Node.js

OpenTelemetry instrumentation for `cassandra-driver` database client library for Apache Cassandra

Plugin for loglevel message prefixing

Logger for gulp and gulp plugins

OpenTelemetry instrumentation for `pino` logger

a JSON logging library for node.js services

Global logging utility

Elegant spinner for interactive CLI apps

userland implementation of https://github.com/joyent/node/issues/5243

Parse and format xcodebuild logs

Beautiful color gradients in terminal output

Display pretty Android and iOS logs without Android Studio or Console.app, with intuitive Command Line Interface.

The color cyan, in ansi.

log-driver is a simple logging framework for logging to stdout

The color red, in ansi.

a JSON logging library for node.js services

A tiny JSON logger

Check if gulplog is available before attempting to use it

A node.js version of unix's `tail -f` command

The most simple logger imaginable

OpenTelemetry Transport for winston

The logging package for the Powertools for AWS Lambda (TypeScript) library

A modern logging library for Node.js and modern browsers that provides log level mapping to the console

Stats object for reporting performance statistics

JavaScript environment detection for browser and Node

Summarize any SQL query

JavaScript debug logging for browser and Node

JavaScript SDK for [LogRocket](https://logrocket.com/)

Effortlessly track and debug errors in your JavaScript applications with Rollbar. This package includes advanced error tracking features and an intuitive interface to help you identify and fix issues more quickly.

Strip ANSI color codes from a string. No dependencies.

express.js middleware for winstonjs/winston

The official Elastic APM agent for Node.js

Cloud Logging transport for Winston

More than 130 Handlebars helpers in ~20 categories. Helpers can be used with Assemble, Generate, Verb, Ghost, gulp-handlebars, grunt-handlebars, consolidate, or any node.js/Handlebars project.

The color grey, in ansi.

The color dim, in ansi.

Just a simple logging module for your Electron application

Cross-platform success symbol.

The color green, in ansi.

Your CLI formatting friend.

The color yellow, in ansi.

The color blue, in ansi.

The color bgcyan, in ansi.

The color inverse, in ansi.

The color bgred, in ansi.

The color bgwhite, in ansi.

Cross-platform warning symbol.

The color bgmagenta, in ansi.

Cross-platform error symbol.

log-update fork that uses async-exit-hook internally

The color bold, in ansi.

The color italic, in ansi.

The color magenta, in ansi.

The color bgblue, in ansi.

The color bgyellow, in ansi.

The color black, in ansi.

The color reset, in ansi.

The color white, in ansi.

The color bgblack, in ansi.

The color strikethrough, in ansi.

Cross-platform info symbol.

The color underline, in ansi.

The color bggreen, in ansi.

The color hidden, in ansi.

Extensible TypeScript Logger for Node.js and Browser.

Show some ❤️ to process errors

Pino destination formatter for AWS Lambda

Send logs to Amazon Cloudwatch using Winston.

Express middleware to log each request and response

JSON logging patcher for Next.js

Debug utility with markdown support that runs on browser and server

Multi-colour console output from chalk with added awesome

Better Stack logging core (formerly Logtail)

Cloudflare Workers client for Sentry

JavaScript console instrumentation for browser and Node

Basic template helpers for printing messages out to the console. Useful for debugging context in templates. Should work with any template engine.

For libraries that want to include log4js for logging, but don't want to introduce version conflicts for users that also use log4js. Delegates to whatever log4js version can be found, but does not introduce a specific log4js version.

A client implementation for Loggly cloud Logging-as-a-Service API

TCP and UDP syslog client RFC 5424 & RFC 3164

More than 130 Handlebars helpers in ~20 categories. Helpers can be used with Assemble, Generate, Verb, Ghost, gulp-handlebars, grunt-handlebars, consolidate, or any node.js/Handlebars project.

A Winston transport for Grafana Loki

Better Stack Node.js logger (formerly Logtail)

The official javascript bindings for the Axiom API

Filter out unwanted `console.log()` output

Cloud Logging Client Library for Node.js

Better Stack Typescript types (formerly Logtail)

A JavaScript ANSI color/style management. ANSI parsing. ANSI to CSS. Small, clean, no dependencies.

Terminal string styling done right

[](https://www.npmjs.com/package/ngx-logger)

Express & Koa middlewares and Fastify & Hapi plugins for CLS-based request id generation, batteries included

An Elasticsearch transport for winston

Syslog parser and producer

Axios interceptor of logging requests & responses by debug.

I need more intel.

@sentry/node transport for the winston v3 logger

a JSON logging library for node.js services (dtrace is disabled)

A syslog transport for winston

A nodejs implementation for sending logs to Logz.IO cloud service Copy of logzio-nodejs

The OpenReplay tracker main package

Logging tool for Cloud Foundry

debug improvements

Cloud Logging stream for Bunyan

A logger abstraction for libraries

hocuspocus logging extension

A transport for pino that sends messages to Loki

debug module using logfmt format

A client implementation for Loggly cloud Logging-as-a-Service API

Record all your interactions with Claude Code as you develop your projects

Console.log transformation pipes

Correlation id for node.js

Sends structured log events to the Seq HTTP ingestion API

Lightweight logging library for any Node 10+ applications

Logger built on top of pino to be used by AdonisJs

An HTTP traffic monitor for React Native with zero dependencies

Get a logger. Any logger.

Forge beautiful changelog automatically.

A modern logging library with a fluent API for specifying log messages, metadata and errors

Parses logs and stringifies logs into the logfmt format

Open source, fullstack monitoring. Capture frontend errors, record server side logs, and visualize what broke with session replay.

This module provides functionality to logging data for vechain-sdk

The logger for Antora.

A winston transport wrapper for logzio

A MongoDB transport for winston

Base plugin used to implement plugins for loglayer.

Lightweight client & server-side logging with Stream-API backends and counting, timing support

Better Stack Pino transport (formerly Logtail)

Better Stack Winston transport (formerly Logtail)

Splunk HTTP Event Collector logging interface

Base transport used to implement logging transports for loglayer.

A Datadog Logs transport for Winston

A super quick, easy to setup logging tool for NodeJS/TypeScript.

A Loggly transport for winston

Shared utilities and types for loglayer packages.

A Slack transport for Winston 3 that logs to a channel via webhooks.

Attach a CloudWatch LogSubscription to your functions' logs

Express middleware to correlate requests across http calls

Base context manager used to implement context managers for loglayer.

A tiny and fast package for adding colors to your terminal output.

a JSON logging library for node.js services (dtrace is disabled)

A stream implementation of the bunyan cli tool's pretty printing capabilities

Colorful animations in terminal output

A logging library that combines the simplicity and convenience of debug with the power of bunyan

The Stacks logging system.

TypeScript Logging core written in and to be used by TypeScript (this is the core project, you need to install a flavor too).

Logs Slonik queries.

Client side logger.

Simple Javascript logger for Node.js and Browsers

Updates the previous output in the terminal. Useful for correct rendering progress bars, animations, etc.

Node bindings for spdlog

A Winston v3 transport for Seq

A Logstash transport for winston

morgan logging req, res, and body

A logging helper for Node JS Edit

The Graylog Extended Log Format for the Node.js

A Pothos plugin for tracing and logging resolver invocations

Simple logging library with zero dependencies for Deno/Node.js/Bun/browsers

A pluggable logging utility with built-in colors, styles, and modes.

Better Stack browser logging (formerly Logtail)

Bunyan logging specifically for the browser

The universal logger

LogDNA's Node.js Logging Module.

256 xterm color codes

Tracker plugin for screen assistance through the WebRTC

Raygun package for Node.js, written in TypeScript

Dead-simple, stateless logging utility for JavaScript and TypeScript. Pure functions. No dependencies. Just log.

A minimal but effective logging mechanism with support for log levels and pluggable log appenders.

Redux middleware for propagating Redux state/actions to use with new @sentry/browser and @sentry/node.

Azure Application Insights transport for Winston

React Native plugin for integrating the Instabug SDK

Pino transport for the LogLayer logging library.

Simple logging package. Use on client and/or server. On the client, sends logs to the server and stores them in your existing server side logs. On the server, log to console or use Winston transports. Ideal for logging exceptions, AJAX timeouts.

Support for Windows services, event logging, UAC, and several helper methods for interacting with the OS.

@sentry/node transport for pino logger

Logging on steroids with CLS and Proxy. Integrated with express, koa, fastify.

Fast effective logging library for both Node, the Browser, and Workers!

A console log appender for the Aurelia logging library.

Create updatable log lines into the terminal, and give life to your logs!

Stream for logging to s3 with rotated object names. Usable as a wiston-file stream.

A simple npm utility module for logging

Simple and easy stdio capture for Node.js

This package provides a [simple configuration][] to use with [Pino][] to make it adhere to Google Cloud Logging [structured logging][].

High performance debug logging

Like winston-seq, but updated. Temporary package

DataDog transport for the LogLayer logging library.

Console log colors helper for simple lightweight useage, no external dependencies.

A transport for pino that sends messages to DataDog

A transport for pino that rotates logs

Simple logging support using the standard Mocha reporting style

A graylog2 transport for winston

Get the current line number of the executing file and method

A Papertrail transport for winston

Strip console, alert, and debugger statements from JavaScript code

Logs Slonik queries.

Pino Transport abstraction for Google Cloud Logging.

Node.js logging facade to decouple frameworks, libraries and application code from specific logging implementations.

A modern logging & debugging utility. For browser & server.

A flexible and simple JS logging library that allows logging or collecting logs in different environments by configuring various Appenders. Suitable for browser, NodeJS and other environments.

A Winston transport for Amazon CloudWatch.

a rotating file stream for the bunyan logging system

Winston-lite-esque Log lib for terminal and browser debugging, with piles of unignorable log tags and marker styles.

log4javascript

Strip console and debugger statements from JavaScript code

A debugging library for RxJS

Datadog Browser Logs transport for the LogLayer logging library.

sprintf plugin for loglayer.

A variant of `morgan.compile` that provides format functions that output JSON

Rapid7 Insight Platform client for node; use with or without Winston or Bunyan.

Easy, simple & beautiful logs

A common core for Logflare javascript transports.

Pretty log output in the terminal / browser / Next.js for the LogLayer logging library.

Colorful animations in terminal output

A DebugAppender for `base-log-factory`.

A ColorfulAppender for `base-log-factory`.

Convert JSON or JavaScript objects into clean, human-readable plain text format.

An updated rollbar transport for winston

A simple winston wrapper for generating logger instance per module and log tags

Flexible logging functionality for Vue.js 2 & 3

Koa middleware for logging requests using bunyan

Generic logger

Composable loggers for TypeScript