JSPM

A development middleware for webpack

Info about your dev environment for debugging purposes

Do things in development and nothing otherwise

Simple monitor script for use during development of a Node.js app.

Angular Material Component Development Kit

A local Prisma Postgres server for development and testing

Rails-inspired generator system that provides scaffolding for your apps

Handles the lifecyle and bootstrapping of generators in a specific environment

Loads environment variables from `.env.[development|test|production][.local]` files

Automatically install pre-commit hooks for your npm modules.

Simple development http server with live reload capability

UI5 CLI - Internal Logger

UI5 CLI - File System Abstraction

CLI tool for running Yeoman generators

Check if Electron is running in development

Parse a function into an object using espree, acorn or babylon parsers. Extensible through Smart Plugins

UI5 CLI - Project

UI5 CLI - Server

UI5 CLI - Builder

add some typescript type and re-export some build-in typescript type

UI5 CLI - CLI

A modern, fast .d.ts generation tool, powered by Bun.

simple development http server with live reload capability

cli for mastra

Init CLI for Prisma

SMTP Server and Web Interface for reading and testing emails during development

For managing certificates when developing Office Add-ins.

A lean, modular web server for rapid full-stack development

tldraw infinite canvas SDK (state).

tldraw infinite canvas SDK (schema).

tldraw infinite canvas SDK (private utilities).

A runtime validation library by tldraw.

A tiny little drawing editor.

tldraw infinite canvas SDK (store).

tldraw infinite canvas SDK (editor).

tldraw infinite canvas SDK (react bindings for state).

All the development dependencies you need.

A command line utility to read version from package.json and attach it into your module as a property

Holder uses SVG to render image placeholders entirely in browser.

Ensures consistent encoding and decoding of TC Signals for the iab. Transparency and Consent Framework (TCF).

Unified AI rules management CLI tool that generates configuration files for various AI development tools

A task management system for ambitious AI-driven development that doesn't overwhelm and confuse Cursor.

Adds useful debug features to your Electron app

Lightweight development node server for serving a web app, providing a fallback for browser history API, loading in the browser, and injecting scripts on the fly.

Automatically install pre-push hooks for your npm modules.

tldraw infinite canvas SDK (multiplayer sync).

Automatically install pre-commit hooks for your npm modules.

Assemble plugin (^0.6.0) for loading globs of views onto custom view collections. Also works with verb or other Templates.js based applications.

Assemble pipeline plugin for pushing views into a vinyl stream.

Assemble plugin for rendering views in a vinyl pipeline.

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

a browserify server for rapid prototyping

tldraw infinite canvas SDK (multiplayer sync react bindings).

Dynamodb local plugin for devops

The core assemble application with no presets or defaults. All configuration is left to the implementor.

Storybook Addon Development Kit

Mocks Server plugin providing an administration REST API

webhint's recommended hints configuration for development

Assemble pipeline plugin for handling custom middleware stages.

Light wrapper for vinyl-fs to add streams support in a way that plays nice with Assemble middleware.

A tiny little drawing editor.

Mock Server supporting multiple route variants and mocks

Reloads all style sheets in the page associated with a URL

A modern [Web Component](https://developer.mozilla.org/en-US/docs/Web/Web_Components) for [Luzmo](https://luzmo.com) dashboards in your web application.

Pluggable mock server supporting multiple route variants and mocks

tldraw infinite canvas SDK (assets).

Mocks Server plugin providing proxy variant handler

Run DynamoDB local for development and testing

Middleware for validating host headers in requests to protect against DNS rebinding attacks.

Static file serving for Electron apps

Get the absolute URL of your Next.js app (and optionally set a dev url)

A React component that provides a developer-friendly toolbar for interacting with LaunchDarkly during development

A static code analysis tool for UI5

UI5 CLI middleware to instrument code coverage with Istanbul

Mocks server plugin providing an interactive CLI

Shared utilities for JSX location data injection

A CLI for webpack-plugin-serve, providing a premier webpack development server

A Vite plugin that adds location data attributes to JSX elements

AI development tool with CLI and dashboard

Faker.js data generator plugin for Kubb, creating realistic mock data from OpenAPI specifications for development and testing.

Node.js module to refresh and reload your code in your browser when your code changes. No browser plugins required.

🐏 A webpack plugin for blazing fast builds on a RAM disk / drive

Typescript development tools

Useful utilities for Electron apps and modules

A Development Server in a Webpack Plugin

This package permit to have a centralized dotenv on a monorepo. It also includes some extra features such as manipulation and saving of changes to the dotenv file, a default centralized file, and a file loader with ordering and priorities.

tldraw infinite canvas SDK (ai module).

A gulp plugin to remove parts of code based on regular expressions.

Base library for creating Angular components and applications using Taiga UI principles regarding of actual visual appearance

Serve ES modules over HTTP, rewriting imports

watch and reload your electron app the easy way

Ensures consistent encoding and decoding of TC Signals for the iab. Transparency and Consent Framework (TCF).

A Vite plugin for synchronizing HMR across multiple workspaces in a monorepo setup.

This is a React library for embedding [Luzmo](https://luzmo.com) dashboards in your React application.

Regular expression for matching HTML empty conditional comments

Mock Service Worker (MSW) handlers generator plugin for Kubb, creating API mocks from OpenAPI specifications for frontend development and testing.

A package with tools for Taiga UI library i18n

Quickly get self signed ssl certificates for development

AI development tools for debugging and monitoring AI SDKs streams

A Typescript type definition for NPM package json

A Vite plugin that adds source location and component information to DOM elements during development

A TLS/HTTPS library with automation.

AI-native system for spec-driven development

Breakthrough Method of Agile AI-driven Development

Simple auto-reloading for Electron apps during development

A webpack plugin that allows you to securely use environment variables within your javascript web application, loading them using dotenv-flow's `.env*` files loading strategy.

Vite Plugin for API mock dev server.

A CLI for remix-run

MCP server for UI5 application development

An Angular library providing a set of services for supporting server-side rendering (SSR) and other features.

A tool to manage project Git hooks

Ensures other in-page digital marketing technologies have access to CMP transparency and consent information for the iab. Transparency and Consent Framework (TCF).

ServiceNow development with SnowCode - 75+ LLM providers (Claude, GPT, Gemini, Llama, Mistral, DeepSeek, Groq, Ollama) • 395 Optimized Tools • 2 MCP Servers • Multi-agent orchestration • Use ANY AI coding assistant (ML tools moved to Enterprise)

Utilities for debugging Piral instances.

Enhanced Sanity.io plugin development experience

Dev CLI for Prisma

This is a Vue.js library for embedding [Luzmo](https://luzmo.com) dashboards in your Vue 2 or Vue 3 application.

Beautiful text formatter for LogTape—perfect for local development

simple development http server with live reload capability

A toolkit for React, Preact & Inferno apps, React libraries and other npm modules for the web, with no configuration (until you need it)

Hook for advanced logging of API requests to a Sails.js server.

tldraw infinite canvas SDK (create cli).

A gulp plugin for identifying biuld mode.

Bridge the gap between ES modules and CommonJS modules with an easy-to-use alternative to `tsc`.

Snow-Code - AI-powered ServiceNow development CLI enhanced for Snow-Flow

a development server for rollup

Generate plugin that gathers data from the user's environment to pre-populate data for hints.

Stuntman - HTTP proxy / mock API client

Run VS Code on a remote server.

An implementation of the Node.js module resolution algorithm.

Run Python on n8n.

Initializes a handful of (empty) template collections to your generator, such as docs, includes, badges, and layouts, along with a few generic defaults.

Self-signed PEM key and certificate ready for use in your HTTPS server

Development stack for TypeScript libraries

Ensures other in-page digital marketing technologies have access to CMP transparency and consent information for the iab. Transparency and Consent Framework (TCF).

The Inspection Chamber is an in-browser development tool that gives you all the knobs and dials to interactively put your view transitions through their paces.

Stuntman - HTTP proxy / mock shared types and utils

Validation and logging utilities to help pinpoint instrumentation issues while developing

Command line tool and developer framework for scaffolding out new GitHub projects. Generate offers the robustness and configurability of Yeoman, the expressiveness and simplicity of Slush, and more powerful flow control and composability than either.

Use this generator to add some common default settings to your 'generate', verb, and assemble generators.

Web-hacking proxy API for node

Development stack for TypeScript libraries

Development stack for TypeScript libraries

tls.createServer options with SSL/TSL certificate for quick https setup for live-server

A modern and smart reverse proxy.

Extensible parser for git commit messages following Conventional Commits Specification

Development stack for TypeScript libraries

Development stack for TypeScript libraries

Fake SMTP Server for email testing

Return `dev`, `prod`, or optional extra environements based on `process.env.NODE_ENV`

A tool to manage project Git hooks

Stuntman - HTTP proxy / mock server with API

CMP API Stub code

The Stacks development dependencies.

Development stack for TypeScript libraries

Development stack for TypeScript libraries

A comprehensive AI code detection and analysis CLI tool for tracking AI-generated code in projects

React render tracker – a tool to discover performance issues related to unintended re-renders

This is an Angular library for embedding [Luzmo](https://luzmo.com) dashboards in your Angular application.

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

Flexible generator, which makes your project clean and maintainable.

This command line interface provides a belt full of tools that make building microservices using [micro](https://github.com/vercel/micro) a breeze! It's only meant to be used in development, **not in production** (that's where [micro](https://github.com/v

AI-powered development tools with browser monitoring and MCP server integration

Validates given IPs (IPv4 and IPv6) using [micromatch][] - glob patterns, RegExp, string or array of globs. If match returns the IP, otherwise null.

Apptile CLI - Web server and command-line tools for managing Apptile apps, plugins, and development workflow

Alive fork of live-server: simple development http server with live reload capability

Simple and Efficient Cache Implementation for TypeScript

Create random values using configurable type generators.

Spec-Driven Development workflow toolkit for Claude Code - Build high-quality features faster with repeatable AI workflows

**⚡️ Fast, lightweight and powerful development server for esbuild ⚡️**

Command-line interface for Vibe Coding Machine - Autonomous development

🍛 Ultralight http server with live reload. [CLI + API]

The one that maintains the development yard

A Vite plugin that enables dynamic proxy configuration at runtime, allowing flexible and configurable proxy settings for development servers

Orchestrix - Universal AI Agent Framework for Coordinated AI-Driven Development

Vite plugin for enabling iframe communication with parent windows using MessageChannel

A webpack plugin that use externals of CDN urls for production and local node_modules for development

Automatically install post-commit hooks for your npm modules.

React development tools for assistant-ui components

CMP API Stub code

Development Server with Live Reload Capability. (Maintained Fork of Live Server)

A versatile collection of smart, efficient, and reusable utility functions, classes and types for everyday development needs.

A Vite plugin for development enhancements

Official TypeScript/JavaScript SDK for CodivStack API - Self-hosted BYOC sandbox platform on AWS ECS Fargate

Playfab SDK for node.js applications

Extend the Content Security Policy on the fly (for development)

CLI for managing decocms.com apps & projects

Simple HTTP Server for static files. Intended as testing and development tool

Generate a 10-color palette from a base color

Detects environment (production, staging, test, development, ci) and helps making decision based on that

Dynamodb migrations for devops

rolatech angular components

Environment configuration loader for Lad

Returns a boolean indicating if you are in a development environment or not

AI-powered CLI for development and research tasks

Rails-inspired generator system that provides scaffolding for your apps

Promptbook: Turn your company's scattered knowledge into AI ready books

Get all possible javascript (npm/yarn/pnpm) global or local, binaries or packages paths, e.g. node_modules and node_modules/.bin. Also works for those using NVM or such

## Overview

AI development tools for debugging and monitoring AI SDKs streams

MCP server to enforce development workflow discipline

Development stack for TypeScript libraries

A Vite plugin that forwards browser console logs to the Vite dev server console

Self-signed PEM key and certificate ready for use in your HTTPS server (fork from https-pem)

Dynamic Specification Growth System - Context Engineering Skills for AI-assisted development

Fully automated Docker containerization for AI-generated projects. One command handles container setup, dependency installation, and security fixes. 24 features addressing 82% dependency conflicts, 60-70% environment mismatches, 48% hardcoded secrets in L

ANYON Agents - Complete collection of AI agents, workflows, and tasks for the ANYON development methodology

A simple wrapper around webpack-dev-server

Run a Node.js application for development, with support for auto-reload.

Reads shell environment variables from a file and assigns them to `process.env` (or anywhere else).

npm link together local modules && npm install remaining dependencies

Node.js simple http server for common development or training purposes.

A Model Context Protocol server that acts as an intelligent conversation state manager and development guide for LLMs, featuring comprehensive long-term memory with persistent project artifacts

A Vue 3 plugin that adds HTML comments around components for easier debugging

Kilany Code - Premium AI-Powered Development CLI with Dual-Provider Support (Ollama + AWS Bedrock)

Simple utility to merge package json

Git-Native Autonomous Coding Engine powered by Claude

Log http requests as ndjson

AI-powered development assistant with memory, learning capabilities, SDK generation, and enhanced TUI integration

A command line utility for the Unity Game Engine.

A stream implementation of the bunyan cli tool's pretty printing capabilities with circular reference safety

Pixi'VN is a npm package that provides various features for creating visual novels.

Development utilities for the Vis family projects.

A flexible, highly available district selector for picking provinces, cities and districts of China.

Official OpenHive CLI to build, manage, and deploy A2A-compliant AI agents

npm install for Stripe.js — for testing only

Single binary distribution for CloudIDE Pro - like claude-code but for terminal IDEs

A cross-browser ponyfill or polyfill for showOpenFilePicker

Development stack for TypeScript libraries

Spectacle server and CLI tools for KandiForge ecosystem

Spin up local database containers without Docker. A DBngin-like CLI for PostgreSQL and MySQL.

fyn is the NPM for fynpo -- a zero setup monorepo tool

MagicAI 软件开发工作区智能会话助手

✨ Node.js module to refresh your browser when your Express server restarts.

Universal multi-agent template for Claude Code - AI-assisted development with specialized agents

Database synchronizer for Magento, based on Magerun

Simplified `NODE_ENV` handling with webpack

XiaoMa Cli: Universal AI Agent Framework

Brackets Server is a server for providing hosted version of the popular code editor Brackets.

A powerful Vite plugin that invisibly marks JSX elements with debug attributes for seamless development and testing

n8n node to detect if something changed between the current execution and the previous one.

Librería React ligera para logging visual en desarrollo con panel flotante

A ngClarc library providing a set of utilities and interfaces for various projects.

🔥 HMR for Node.js

Spec-Exact Development by AI - A development methodology where AI develops exactly as the spec defines

BMAD Method with AI Research expansion pack - Academic paper writing, experiment design, reproducible research workflows, and scientific publication with Archon MCP integration

VibeHub CLI - Command line interface for VibeHub

A powerful CLI tool for managing Git worktrees for parallel development

Visual debugging tools for ForesightJS - mouse trajectory prediction and element interaction visualization

Shared testing utilities