JSPM

Returns true if a value is a plain object, array or function.

Database migration framework for node.js

PostgreSQL database migration management tool for node.js

Context menu for your Electron app

Simple autocomplete pure vanilla Javascript library.

Build awesome media experiences on the web.

Build a GraphQL schema by reflection over a PostgreSQL schema. Easy to customize since it's built with plugins on graphile-build

xast utility to create trees

facile.it ESLint extensible configuration

Error base class for Node.js/browsers

Create, document, customize and throw node errors easily

Returns `true` if a value is any type of object, but not an array. Browserify-ready.

xast utility to parse from XML

UI component library for building high-quality, accessible video and audio experiences on the web.

CmpStr is a lightweight, fast and well performing package for calculating string similarity

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A comprehensive TypeScript utility library featuring fluent text building, type-safe switching, duration utilities, React hooks, and extended array/object prototypes for modern JavaScript development.

Database migration framework for node.js

simple decorator based validation engine

Agnostic database decorators and repository

Yet another extensible error library for node.js

Build a GraphQL schema by reflection over a PostgreSQL schema. Easy to customize since it's built with plugins on graphile-build

Svelte bindings for the Vime media player.

Novaxjs2 is a lightweight, flexible, and extensible web framework built for Node.js, designed to simplify the process of building and serving dynamic web applications. With a focus on simplicity and performance, Novaxjs2 provides a straightforward API tha

A template for creating npm packages using TypeScript and VSCode

Extensible plugin system for Claude Code - add specialized AI expertise, workflows, and development tools

SmartEdit: A Powerful and Extensible CLI Editor

Motor de flujos de trabajo flexible y extensible desarrollado por Hemia Technologies.

Create Telefonica UNICA Errors

Extensible logger with simple class based, fluent interface api written in typescript.

extensible and composable duck for redux-saga, support typescript 3+.

baileys whatsapp-api

A vue resizable container component.

Rocketstyle is ultra powerful and extensible styling system for building React components blazingly fast, easily and make them easily extensible and reusable.

Type-safe Postgresql database migration management tool for node.js

Ultra-lightweight plugin engine with natural DX and auto-extensibility

A robust and optimized JavaScript library for integrating Google's Teachable Machine models, supporting various image sources and providing efficient classification capabilities.

A fully customizable and extensible React editor built on TipTap with drag-and-drop images, complete TypeScript support, and modern UI components

<p align="center"> <img src="https://github.com/user-attachments/assets/0d9b376e-1d89-479a-aa7f-e7ee3c6b2342" alt="BurgerAPI logo"/> </p>

JavaScript implementation of the SuperPack extensible schemaless binary encoding format

Easily validate deep form structures using both premade and custom validation rules.

Rocketstyle is ultra powerful and extensible styling system for building React components blazingly fast, easily and make them easily extensible and reusable.

Framework for building extensible Slack bots

Extensible Cache

A lightweight and extensible type ahead library

A customizable and extensible client api for managing conversations and AI interactions, currently supporting the **Google Gemini** API — with flexibility to support any similar AI APIs.

A small and fast autocomplete plugin for Zepto and jQuery.

Generate responsive and reusable CSS using clean JavaScript. No more raw CSS or utility class clutter.

A powerful and modular JSON template engine with extensible filters

A simple, lightweight and isomorphic extension of the Fetch API that allows for graceful error handling and response validation, automatic retries, and the ability to bring your own Fetch API package.

Guarder provides simple validation logic to reduce clutter with inline guard statements

Postgresql database migration management tool for node.js

A quick way to add plugin system to your code.

GeeksCreations ESLint extensible configuration

Jezweb Model Context Protocol (MCP) Core - A universal server for providing AI tools and resources, designed for seamless integration with various AI models and clients. Features adaptable multi-provider support, comprehensive tool and resource management

Web-enhanced Extensible Neovim Frontend

UI component library for building high-quality, accessible video and audio experiences on the web.

Extensible Mock Server

A bundler for modular and extensible web projects.

UI component library for building high-quality, accessible video and audio experiences on the web.

Ferramentas úteis para desenvolvedores via MCP

UI component library for building high-quality, accessible video and audio experiences on the web.

UI component library for building high-quality, accessible video and audio experiences on the web.

event based and extensible nodejs irc client library with multi-network support

An angular file uploader library

A high-performance, plugin-based memory AI system for intelligent applications.

A simple, light-weight and extensible CSS 3D Carousel

Framework for creating presets, configurations and extensions

Provides x-iterable class template

A tiny vanilla (zero-dependency) non-visual native browser web component (plug-n-play custom HTML element and extensible class) that helps implement custom patterns for promoting progressive web apps (PWA) installation

Sistema de microkernel extensible para plugins con gestión de permisos integrada

Postgresql database migration management tool for node.js

Object diff and patch

PostgreSQL database migration management tool for node.js

Mixable base classes that provide consistent functionality to any class that extends them

Fast and extensible validator for JavaScript

The simplest state management library ever. No providers, no flux, no context hell. Just plug-and-play state for React & React Native with 100% test coverage.

Extensible and modular auto-complete library for js.

Build a GraphQL schema by reflection over a PostgreSQL schema. Easy to customize since it's built with plugins on graphql-build

Modern Web Game Engine based on PixiJS

baileys whatsapp-api

Small and lightweight extensible blog engine.

🍭 An extensible fetch wrapper for simplified and powerful HTTP requests using native web APIs

A modular, extensible Discord app framework for Node.js with slash command, localization, and event-driven support.

A superfast, lightweight, extensible HTTP/HTTPS web server, designed with clean object-oriented principles and zero runtime dependencies.

Extensible Mock Server

This package provides Colourbox's .eslintrc as an extensible shared config.

Minimalistic, powerful and extensible Vanilla JS tooltip plugin

An exstensible OAuth 2.0, standard compliant client library for Node.js and the Web.

Start with a short time limit and extend it dynamically. [npm search keywords: callback chain extend extendable extendible extensible flexible function prolong prolongable renew renewable time limit timeout]

A model-driven and extensible form engine.

A serializer/deserializer

Generalized and hookable mini-css-extract-plugin. Extract any format, process it your way.

Lightweight function application utilities

extremely powerful yet extensible gird component

Transform code repositories into strategic intelligence using extensible AI agents. Analyze technical debt, business value, and deployment readiness automatically.

Bundle your HTML assets with Esbuild and LightningCSS. Custom plugins, HMR platform, and more.

lite & flexible & extensible state management for react

NodeJS Implementation of the PHP NBBC BBCode Parser, a fast extensible BBCode parser

Self-hosted extensible discord bot

An extensible nano-service framework

sxapi-core is an simple and extensible framework for building microservices API using javascript technologies

UI component library for building high-quality, accessible video and audio experiences on the web.

Headless web components that make integrating media on the a web a breeze.

A linq-like lazy iteration module that aims to support deno, node & browser

An extensible bit-vector class for Javascript

Type-safe environment variable validation for Node.js using Zod schemas or custom adapters. Load .env files, expand variables, fetch async secrets, and validate process.env at startup.

Log75 is a lightweight and extensible console.log wrapper to organise logs

Dependency Inversion Network Library with Type-Safe Injection.

Attrs hoc chaining for React components

highly pluggable, agile http site development framework

UI component library for building high-quality, accessible video and audio experiences on the web.

A powerful factory for creating extensible and type-safe enums in TypeScript, offering enhanced flexibility and features compared to native enums.

lorem ipsum json advance

UI component library for building high-quality, accessible video and audio experiences on the web. With rel option for YouTube.

Simple and straight forward TypeScript logging framework for everyone.

Create proxies based on lists of traps which can be extended at run time

Simple autocomplete pure vanilla Javascript library.

[](https://travis-ci.org/antonybudianto/angular2-starter) [](https:

A flexible and extensible multi-database plugin for TypeScript projects, initially featuring MongoDB support. This plugin offers generic CRUD operations with company and user segregation, type-safe document handling, automatic metadata tracking, and built

Universal TypeScript starter kit using Rollup, and Buble

nothing

A language independent tool for rapid prototyping stuff.

over-engineered, type-safe, headless, and extensible tooltip builder vs Svelte action

A robust and versatile package for selecting, filtering, and managing word lists with advanced security features.

A language that infinitly extensible

The pluggable JavaScript lexer. Limon = Lemon.

Secure CLI tool that translates natural language to shell commands using local AI models via Ollama, with project memory system, reusable command templates (hooks), MCP (Model Context Protocol) support, and dangerous command detection

A tiny and extensible FRP library

Extendable ES6 Promise Implementation

parse a stream correctly (according to the content-type) using raw-body

Postgresql database migration management tool for node.js

Duun is an extensible sandbox for decoupling web application components.

Lego-like JSON loader

An extensible shunting yard algorithm implemented in JavaScript

middleware style interceptor; fetch based 0 dependancy imperative light weight http handler.

Ultra flexible and extensible grid system inspired by Bootstrap grid, based on styled-components

Create highly extensible software components.

A stateful virtual DOM for any purpose.

A tiny extensible framework and boilerplate.

A comprehensive TypeScript library for generating harmonious color palettes with WCAG 2.1 accessibility compliance

Keep structure of the messages and log them to any output, using specific plugins.

Extended JSON Evolved

Extensible functional stylesheets for React and React-Native

Rocketstyle is ultra powerful and extensible styling system for building React components blazingly fast, easily and make them easily extensible and reusable.

Highly extensible & flexbile carousel component for React

Database migration framework for node.js. Forked from https://github.com/db-migrate/node-db-migrate#readme

UI component library for building high-quality, accessible video and audio experiences on the web.

Ultra flexible and extensible grid system inspired by Bootstrap grid, based on styled-components

A highly extensible nodejs framework

Fetcher core

A powerful and extensible form engine.

Simple autocomplete pure vanilla Javascript library.

Inject plugins into your module with `this` automatically bound to your core module for methods.

Abstract table to extend whatever way

Database migration framework for node.js

Extensible MVC library

Database migration framework for node.js forked from db-migrate/node-db-migrate

TrashPanda Client Framework. Makes building extensible, modular applications really easy.

A simple and extensible caching library built on top of a plain database.

A simple C ircbot with nodejs bindings

Extended Javascript Bundler

UserPravah is an extensible, framework-agnostic tool for analyzing user flows and navigation patterns in web applications. It supports multiple frameworks (Angular, React) and output formats (DOT/Graphviz, JSON) with a plugin-based architecture for easy e

Essential, extensible Javascript types

Extensible online banking command line interface

Intuitive Compact Rules: A small and extensible rules engine with a compact JSON footprint.

Extensible Archive Format

Extensible self-documenting workflow middleware for Node.js microservices

A bare minimum and extensible crud generator

motherfucker, make me a sandwich

A flexible IRC bot library. Supports Discord via its own builtin Discord-IRC relay/bridge server.

A simple, light-weight and extensible CSS 3D Cylinder

Context menu for your Electron app

exseed command line tool

json-serialization is an extensible asynchronous JSON serialization library. json-serialization 是一个可扩展的异步 JSON 序列化库。

Dependency Inversion Network Library with Type-Safe Injection.

Modular and middleware-capable JSON-RPC server with extension support

Easy Javascript library for manipulating portable page containers with HTML elements

A library which helps you create extensible react applications

🚣 A middleware-inspired toolbox that promotes stateful function extensibility.

Superlight, schema-based, extensible Node.js object validator. Useful for Express req.body/params/query, or MongoDB document before inserting into collection if don't want to use Mongoose.

eXtended Serialized Object Notation

Extensible self-documenting structured workflow middleware for Node.js microservices

Extensible stylesheets for react-native

Component Markup Language. It's like QML for the browser.

Better errors that are extensible and don't leak sensitive data to end-users.

An extensible type/contract system

Dead-simple validation library

Animation package part of Avati project

...

A friendly-extendible storage for your FrontEnd applications

A high-performance, tree-based router for JavaScript and TypeScript, featuring a powerful plugin system for extreme extensibility

View class - based on Teacup, extensible via components

Context menu for your Electron app

Plugin to create block-level extensible fences for markdown-it markdown parser

A CLI smarter than you are

A modern, extensible CLI toolkit framework with plugin support

UI component library for building high-quality, accessible video and audio experiences on the web.

Have you ever wanted to perform query on a JSON? Have you ever wanted to consume it in a program but the JSON was in a form not suitable for your program? Have you wanted to use the JSON without writing any code to do it? Have you wondered what it takes

An eval-free DOM Super Selector with plugin architecture for Chrome Extensions and web scraping - V2 Complete Rewrite

Database migration framework for node.js

A lightweight, JavaScript engine for building Solr requests

A Logic-Less & Extensible template engine with javascript

Database migration framework for node.js

A lightweight, flexible routing framework for building scalable and maintainable API infrastructures in JavaScript, with simple endpoint management and dynamic routing capabilities

Creates a read only array, allowing extension with custom methods

Context menu for your Electron app

A bare minimum and extensible crud generator

Yet another extensible redux modules (ducks-modular-redux)

UI component library for building high-quality, accessible video and audio experiences on the web.

Extensible 2D Physics Library for the Web & Node

A powerful and extensible form engine.

A powerful and extensible form engine.

Context menu for your Electron app

Extensible web stack in TypeScript for exploring natural languages

a simple promise

Note that this is a fork from https://github.com/salsita/node-pg-migrate and used to support AWS Redshift migration. Postgresql database migration management tool for node.js

Extensible class for observable objects

configuration made easier

Maanyakaran(मान्यकरण) [meaning: validation], Micro framework for validation of JS Objects or react and redux etc states

Make anything callable like a function. Includes function and method utilities.

A small, extensible data utility for cleansing `information` into <u>rich data</u> points.

Build a GraphQL schema by reflection over a PostgreSQL schema. Easy to customize since it's built with plugins on graphile-build

Lint server rendered Razor views with inline VueJS templates

A JSON parser implemented in TypeScript

Custom errors with extra properties

A bare-bones text editor that integrates seamlessly in larger web projects

Context menu for your Electron app

Postgresql database migration management tool for node.js

Modular and middleware-capable JSON-RPC server with extension support

A customizable pretty print framework

Context menu for your Electron app

A simple, super-flexible, extensible config based form generator for React.