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

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

CLI tool for running Yeoman generators

Automatically install pre-commit hooks for your npm modules.

UI5 Tooling - File System Abstraction

Simple development http server with live reload capability

UI5 Tooling - Internal Logger

UI5 Tooling - Server

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

UI5 Tooling - Project

UI5 Tooling - Builder

UI5 Tooling - CLI

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

Check if Electron is running in development

For managing certificates when developing Office Add-ins.

simple development http server with live reload capability

tldraw infinite canvas SDK (state).

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

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

tldraw infinite canvas SDK (editor).

Holder uses SVG to render image placeholders entirely in browser.

tldraw infinite canvas SDK (schema).

tldraw infinite canvas SDK (store).

tldraw infinite canvas SDK (private utilities).

A runtime validation library by tldraw.

A tiny little drawing editor.

tldraw infinite canvas SDK (react bindings for state).

cli for mastra

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

tldraw infinite canvas SDK (multiplayer sync).

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

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

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

tldraw infinite canvas SDK (ai module).

Assemble pipeline plugin for handling custom middleware stages.

tldraw infinite canvas SDK (multiplayer sync react bindings).

Init CLI for Prisma

Adds useful debug features to your Electron app

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

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

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

Mocks Server plugin providing an administration REST API

Storybook Addon Development Kit

Mocks server plugin providing an interactive CLI

Mock Server supporting multiple route variants and mocks

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

Automatically install pre-push hooks for your npm modules.

Assemble plugin for rendering views in a vinyl pipeline.

Assemble pipeline plugin for pushing views into a vinyl stream.

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.

Reloads all style sheets in the page associated with a URL

a browserify server for rapid prototyping

Pluggable mock server supporting multiple route variants and mocks

Mocks Server plugin providing proxy variant handler

Run DynamoDB local for development and testing

A Development Server in a Webpack Plugin

Dynamodb local plugin for devops

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

AI development tool with CLI and dashboard

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

webhint's recommended hints configuration for development

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

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

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

UI5 Tooling middleware to instrument code coverage with Istanbul

A tiny little drawing editor.

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

A static code analysis tool for UI5

Automatically install pre-commit hooks for your npm modules.

Serve ES modules over HTTP, rewriting imports

Static file serving for Electron apps

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

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

watch and reload your electron app the easy way

A CLI for remix-run

Regular expression for matching HTML empty conditional comments

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

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.

A package with tools for Taiga UI library i18n

Useful utilities for Electron apps and modules

Typescript development tools

tldraw infinite canvas SDK (assets).

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

Breakthrough Method of Agile AI-driven Development

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

Quickly get self signed ssl certificates for 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.

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

A powerful CLI tool for rapidly bootstrapping Angular 17 & Spring Boot (Java 21) applications with integrated security, services, and enterprise-ready best practices.

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

CMP API Stub code

A Typescript type definition for NPM package json

Conversational ServiceNow development platform using Claude Code. Multi-agent orchestration with 20+ MCP servers providing 200+ ServiceNow tools for comprehensive platform development.

Simple auto-reloading for Electron apps during development

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

A tool to manage project Git hooks

Utilities for debugging Piral instances.

Vite Plugin for API mock dev server.

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

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

Enhanced Sanity.io plugin development experience

A TLS/HTTPS library with automation.

a development server for rollup

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

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

simple development http server with live reload capability

A local Prisma Postgres server for development and testing

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

Stuntman - HTTP proxy / mock API client

A gulp plugin for identifying biuld mode.

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

Run VS Code on a remote server.

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.

Dev CLI for Prisma

Stuntman - HTTP proxy / mock shared types and utils

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

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

A Vite plugin to enable a development environment for minimalists.

Web-hacking proxy API for node

A modern and smart reverse proxy.

Fake SMTP Server for email testing

Stuntman - HTTP proxy / mock server with API

A tool to manage project Git hooks

Progressive Development Order Component

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

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

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

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.

Pretty logger for Electron apps

Extensible parser for git commit messages following Conventional Commits Specification

Progressive Development content components.

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

Progressive development page helper, teaser, menu, footer.

Flexible generator, which makes your project clean and maintainable.

An implementation of the Node.js module resolution algorithm.

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

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

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

tldraw infinite canvas SDK (create cli).

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

Dynamodb migrations for devops

CMP API Stub code

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

AI-powered CLI for transforming your development work into professional content

Playfab SDK for node.js applications

A cross-browser ponyfill or polyfill for showOpenFilePicker

Shared utilities for JSX location data injection

Simple and Efficient Cache Implementation for TypeScript

Webcomponent pd-wizard following open-wc recommendations

Progressive Development dialog components.

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

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

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

A CLI to enhance your development experience

Generate a 10-color palette from a base color

Progressive Development Contact component

Cloud-Kinetix enhanced fork of BMAD-METHOD - Breakthrough Method of Agile AI-driven Development with robust versioning and unified validation.

Hot-reload your MCP servers without restarting your AI coding assistant. Works excellently with VSCode MCP, well with Claude Code. A transparent development proxy for the Model Context Protocol that enables seamless server restarts during development.

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

TRIBE multi-agent development system - Zero to productive with one command

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

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

AI-driven development workflow with learning capabilities for Claude

A collection of reusable DevOps tools, CLI scripts, Dockerfiles, CI/CD templates, and configuration files to streamline development and deployment workflows across DISEEC projects. Ideal for standardizing project setup and automating common DevOps tasks.

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

🗝️ Effortless HTTPS Certificate Generation for Local Development

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

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

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

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

Rails-inspired generator system that provides scaffolding for your apps

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

Simple utility to merge package json

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

Liveblocks command line interface

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

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

The one that maintains the development yard

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

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

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

Beautiful text formatter for LogTape—perfect for local development

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

A development middleware for Rsbuild

A compact testing module for node.js.

Promptbook: Run AI apps in plain human language across multiple models and platforms

npm link together local modules && npm install remaining dependencies

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

Automatically install post-commit hooks for your npm modules.

CLI tools for Claude Code development workflow

npm install for Stripe.js — for testing only

Webcomponent for calendar

A wrapper around modern JavaScript tools

CLI to simplify n8n credentials/node development

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

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

Log http requests as ndjson

A GitHub-styled Electron app for managing and running development projects with automatic port detection and window management

Run Python on n8n.

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

Share your Claude Code environment in seconds - export and import development stacks

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

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

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

The Middleware To Serve Front-End JavaScript With JSX And Hot Reload.

MCP Server that serves enterprise development methodology documents to AI coding assistants

Custom commands toolkit for Claude Code - streamline your development workflow

🔥 HMR for Node.js

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

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

🚀 Generic project automation system with anti-compaction protection and recovery capabilities. Automatically detects project type (React, Node.js, Python, Rust, Go, Java) and provides intelligent analysis. Claude Code optimized - run 'welcome' after inst

A Vite plugin that uses TypeScript's tsc to transpile TypeScript sources for seamless bundling.

An MCP server that provides useful web development tools via MCP server

Interactive CLI tool for generating custom Claude Code statuslines

Modern, opinionated development configurations.

The Stacks development dependencies.

use asserts for make type predicates work

Privacy-focused AI CLI tool for developers. With custom commands , init, configurable rules, and automatic ZYCODE.md generation for enhanced AI context and project understanding.

Utilities to do introspection of objects: helpful during development

Return positive value if (any of the) passed value(s) exists in array, or optionally an index

Auto import images for Vite+Vue projects

🧪 ONE Test-Driven Vision CASCADE - Revolutionary Test-First Idea→Vision→Mission→Story→Event→Task→Agent system. Universal access via `npx oneie` creates comprehensive test-driven 3 Levels architecture (.claude/.one/one) with 95%+ validation coverage.

Universal AI development companion that can be initialized in any codebase

waw is a minimalistic Node.js framework that serves as a foundation for building various types of projects. The core framework itself contains almost no code—its functionality is driven entirely by the modules you choose to include, making it highly flexi

AI-powered development orchestration for Gemini CLI - adapted from Claude Code Flow by ruvnet

Momo-kits doctor tool

Rawi (راوي) is the developer-friendly AI CLI that brings the power of 11 major AI providers directly to your terminal. With seamless shell integration, persistent conversations, and 200+ specialized prompt templates, Rawi transforms your command line into

Development utilities for the Vis family projects.

DXP Story Management CLI

A simple wrapper around webpack-dev-server

README.md

Development Kong Server

DevSE - AI-powered development assistant CLI

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

Environment configuration loader for Lad

Node.js HTTP app runner

Simplified `NODE_ENV` handling with webpack

A React development panel with various tools and utilities.

Development server based on esbuild

A comprehensive port management tool for developers with CLI and GUI interfaces

⚡ Figma to codegen bridge

Metis Code - multi-model coding CLI agent

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

A mobile-first IDE with VS Code Server integration