JSPM

ANSI escape codes for styling strings in the terminal

Strip ANSI escape codes from a string

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.

Colors, formatting and other tools for the console

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

Terminal string styling with tagged template literals

Logging utility used by Node Slack SDK

A logger for the Webpack ecosystem

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

Log things, prefixed with a timestamp.

Stream transformer that prefixes lines with timestamps and other things.

The color gray, in ansi.

OpenTelemetry instrumentation for `winston` logger

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

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.

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

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

JavaScript debug logging for browser and Node

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.

Summarize any SQL query

Strip ANSI color codes from a string. No dependencies.

express.js middleware for winstonjs/winston

The official Elastic APM agent for Node.js

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.

Cloud Logging transport for Winston

The color grey, in ansi.

The color dim, in ansi.

Just a simple logging module for your Electron application

The color green, in ansi.

Cross-platform success symbol.

The color yellow, in ansi.

The color blue, in ansi.

The color bgcyan, in ansi.

Your CLI formatting friend.

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.

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

Pino destination formatter for AWS Lambda

The color bold, in ansi.

The color bgblue, in ansi.

The color italic, in ansi.

The color bgyellow, in ansi.

The color magenta, in ansi.

The color underline, in ansi.

The color bggreen, in ansi.

The color hidden, in ansi.

The color reset, in ansi.

The color black, in ansi.

The color white, in ansi.

The color strikethrough, in ansi.

The color bgblack, in ansi.

Cross-platform info symbol.

Show some ❤️ to process errors

Extensible TypeScript Logger for Node.js and Browser.

Express middleware to log each request and response

JSON logging patcher for Next.js

Send logs to Amazon Cloudwatch using Winston.

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.

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

TCP and UDP syslog client RFC 5424 & RFC 3164

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.

Filter out unwanted `console.log()` output

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

A Winston transport for Grafana Loki

Cloud Logging Client Library for Node.js

Better Stack Node.js logger (formerly Logtail)

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

Better Stack Typescript types (formerly Logtail)

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

Axios interceptor of logging requests & responses by debug.

@sentry/node transport for the winston v3 logger

Syslog parser and producer

I need more intel.

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

The OpenReplay tracker main package

A syslog transport for winston

Logging tool for Cloud Foundry

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

debug improvements

Cloud Logging stream for Bunyan

A logger abstraction for libraries

A transport for pino that sends messages to Loki

hocuspocus logging extension

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

Console.log transformation pipes

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

Correlation id for node.js

Lightweight logging library for any Node 10+ applications

An HTTP traffic monitor for React Native with zero dependencies

Logger built on top of pino to be used by AdonisJs

debug module using logfmt format

Sends structured log events to the Seq HTTP ingestion API

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.

The logger for Antora.

Parses logs and stringifies logs into the logfmt format

A winston transport wrapper for logzio

A MongoDB transport for winston

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

This module provides functionality to logging data for vechain-sdk

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

A Datadog Logs transport for Winston

Base transport used to implement logging transports for loglayer.

A Loggly transport for winston

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

Shared utilities and types for loglayer packages.

Attach a CloudWatch LogSubscription to your functions' logs

Express middleware to correlate requests across http calls

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

Base context manager used to implement context managers for loglayer.

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

Forge beautiful changelog automatically.

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.

Colorful animations in terminal output

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

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

Client side logger.

Simple Javascript logger for Node.js and Browsers

Node bindings for spdlog

A Logstash transport for winston

A logging helper for Node JS Edit

morgan logging req, res, and body

A Winston v3 transport for Seq

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

A Pothos plugin for tracing and logging resolver invocations

The Graylog Extended Log Format for the Node.js

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

Raygun package for Node.js, written in TypeScript

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

Bunyan logging specifically for the browser

LogDNA's Node.js Logging Module.

256 xterm color codes

The Stacks logging system.

Better Stack browser logging (formerly Logtail)

The universal logger

Tracker plugin for screen assistance through the WebRTC

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

Azure Application Insights transport for Winston

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.

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

Pino transport for the LogLayer logging library.

React Native plugin for integrating the Instabug SDK

@sentry/node transport for pino logger

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

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

A console log appender for the Aurelia logging library.

A simple npm utility module for logging

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

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

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

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.

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

A graylog2 transport for winston

A transport for pino that sends messages to DataDog

Simple logging support using the standard Mocha reporting style

Get the current line number of the executing file and method

Logs Slonik queries.

Strip console, alert, 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

A Papertrail transport for winston

Pino Transport abstraction for Google Cloud Logging.

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

A Winston transport for Amazon CloudWatch.

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

a rotating file stream for the bunyan logging system

Strip console and debugger statements from JavaScript code

A transport for pino that rotates logs

Datadog Browser Logs transport for the LogLayer logging library.

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

Like winston-seq, but updated. Temporary package

Composable loggers for TypeScript

A debugging library for RxJS

sprintf plugin for loglayer.

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

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

Flexible logging functionality for Vue.js 2 & 3

A structured logging framework for JavaScript, inspired by Serilog.

A DebugAppender for `base-log-factory`.

A ColorfulAppender for `base-log-factory`.

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

Easy, simple & beautiful logs

Generic logger

Koa middleware for logging requests using bunyan