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.

A logger for just about everything.

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

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.

Terminal string styling with tagged template literals

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

Colors, formatting and other tools for the console

Logging utility used by Node Slack SDK

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

A logger for the Webpack ecosystem

Log things, prefixed with a timestamp.

OpenTelemetry instrumentation for `winston` logger

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

The color gray, in ansi.

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

a JSON logging library for node.js services

OpenTelemetry instrumentation for `pino` logger

Elegant spinner for interactive CLI apps

Global logging utility

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.

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

The color cyan, in ansi.

a JSON logging library for node.js services

The color red, in ansi.

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

JavaScript debug logging for browser and Node

express.js middleware for winstonjs/winston

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

Summarize any SQL query

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.

The official Elastic APM agent for Node.js

Cloud Logging transport for Winston

Strip ANSI color codes from a string. No dependencies.

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.

Just a simple logging module for your Electron application

The color grey, in ansi.

The color dim, in ansi.

Cross-platform success symbol.

The color green, in ansi.

The color yellow, in ansi.

Your CLI formatting friend.

The color bgblue, in ansi.

The color blue, in ansi.

The color bgcyan, in ansi.

The color bold, in ansi.

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

The color magenta, in ansi.

The color italic, in ansi.

The color bgyellow, in ansi.

The color bgred, in ansi.

The color bgwhite, in ansi.

The color inverse, in ansi.

Cross-platform warning symbol.

The color bgmagenta, in ansi.

Cross-platform error symbol.

The color reset, in ansi.

The color black, in ansi.

The color bgblack, in ansi.

The color white, 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.

Pino destination formatter for AWS Lambda

Show some ❤️ to process errors

Send logs to Amazon Cloudwatch using Winston.

Extensible TypeScript Logger for Node.js and Browser.

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

JavaScript console instrumentation for browser and Node

Better Stack logging core (formerly Logtail)

Cloudflare Workers client for Sentry

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

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 official javascript bindings for the Axiom API

TCP and UDP syslog client RFC 5424 & RFC 3164

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

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.

Better Stack Typescript types (formerly Logtail)

A Winston transport for Grafana Loki

Filter out unwanted `console.log()` output

Better Stack Node.js logger (formerly Logtail)

Cloud Logging Client Library for Node.js

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)

Syslog parser and producer

Axios interceptor of logging requests & responses by debug.

An Elasticsearch transport for winston

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

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

@sentry/node transport for the winston v3 logger

I need more intel.

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

debug improvements

The OpenReplay tracker main package

Logging tool for Cloud Foundry

A syslog transport for winston

A logger abstraction for libraries

Cloud Logging stream for Bunyan

hocuspocus logging extension

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

A transport for pino that sends messages to Loki

debug module using logfmt format

Console.log transformation pipes

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

Lightweight logging library for any Node 10+ applications

Correlation id for node.js

Sends structured log events to the Seq HTTP ingestion API

Logger built on top of pino to be used by AdonisJs

An HTTP traffic monitor for React Native with zero dependencies

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

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

Get a logger. Any logger.

Parses logs and stringifies logs into the logfmt format

The logger for Antora.

A winston transport wrapper for logzio

A MongoDB transport for winston

This module provides functionality to logging data for vechain-sdk

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

Base plugin used to implement plugins for loglayer.

Splunk HTTP Event Collector logging interface

Better Stack Winston transport (formerly Logtail)

Better Stack Pino transport (formerly Logtail)

A Datadog Logs transport for Winston

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

A Loggly transport for winston

Express middleware to correlate requests across http calls

Base transport used to implement logging transports for loglayer.

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

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

Attach a CloudWatch LogSubscription to your functions' logs

Shared utilities and types for loglayer packages.

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

Base context manager used to implement context managers for loglayer.

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

Forge beautiful changelog automatically.

Client side logger.

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

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.

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

Colorful animations in terminal output

Simple Javascript logger for Node.js and Browsers

A Logstash transport for winston

Node bindings for spdlog

A Winston v3 transport for Seq

A logging helper for Node JS Edit

morgan logging req, res, and body

The Graylog Extended Log Format for the Node.js

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

The Stacks logging system.

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

A Pothos plugin for tracing and logging resolver invocations

The universal logger

Raygun package for Node.js, written in TypeScript

256 xterm color codes

Azure Application Insights transport for Winston

Bunyan logging specifically for the browser

LogDNA's Node.js Logging Module.

Better Stack browser logging (formerly Logtail)

React Native plugin for integrating the Instabug SDK

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

Tracker plugin for screen assistance through the WebRTC

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

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.

Pino transport for the LogLayer logging library.

@sentry/node transport for pino logger

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

A console log appender for the Aurelia logging library.

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

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

Simple and easy stdio capture for Node.js

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

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

A simple npm utility module for logging

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

High performance debug logging

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

DataDog transport for the LogLayer logging library.

A transport for pino that sends messages to DataDog

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

A graylog2 transport for winston

Simple logging support using the standard Mocha reporting style

A Papertrail transport for winston

Get the current line number of the executing file and method

Strip console, alert, and debugger statements from JavaScript code

Logs Slonik queries.

A Winston transport for Amazon CloudWatch.

Strip console and debugger statements from JavaScript code

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.

log4javascript

Pino Transport abstraction for Google Cloud Logging.

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

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

A transport for pino that rotates logs

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

a rotating file stream for the bunyan logging system

Datadog Browser Logs transport for the LogLayer logging library.

Like winston-seq, but updated. Temporary package

Composable loggers for TypeScript

A debugging library for RxJS

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

sprintf plugin for loglayer.

A structured logging framework for JavaScript, inspired by Serilog.

Generic logger

A common core for Logflare javascript transports.

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

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

An updated rollbar transport for winston

Colorful animations in terminal output

LogSnag Client

Flexible logging functionality for Vue.js 2 & 3

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

A DebugAppender for `base-log-factory`.

A ColorfulAppender for `base-log-factory`.

Easy, simple & beautiful logs