Best JavaScript Tools & Libraries

pkg

github

Package your Node.js project into an executable

semantic-release

github

:package::rocket: Fully automated version management and package publishing

chalk

github

🖍 Terminal string styling done right

mocha

github

☕️ Classic, reliable, trusted test framework for Node.js and the browser

social-analyzer

github

API, CLI, and Web App for analyzing and finding a person's profile in 1000 social media \ websites

lowdb

github

Simple and fast JSON database

svgo

github

⚙️ Node.js tool for optimizing SVG files

claude-hud

github

A Claude Code plugin that shows what's happening - context usage, active tools, running agents, and todo progress

SingleFile

github

Web Extension for saving a faithful copy of a complete web page in a single HTML file

eruda

github

Console for mobile browsers

ava

github

Node.js test runner that lets you develop with confidence 🚀

enzyme

github

JavaScript Testing utilities for React

react-testing-library

github

🐐 Simple and complete React DOM testing utilities that encourage good testing practices.

hyperapp

github

1kB-ish JavaScript framework for building hypertext applications

gun

github

An open source cybersecurity protocol for syncing decentralized graph data.

OpenCLI

github

Make Any Website & Tool Your CLI. A universal CLI Hub and AI-native runtime. Transform any website, Electron app, or local binary into a standardized command-line interface. Built for AI Agents to discover, learn, and execute tools seamlessly via a unified AGENT.md integration.

framework7

github

Full featured HTML framework for building iOS & Android apps

screenity

github

The free and privacy-friendly screen recorder with no limits 🎥

pouchdb

github

:kangaroo: - PouchDB is a pocket-sized database.

DOMPurify

github

DOMPurify - a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMPurify works with a secure default, but offers a lot of configurability and hooks. Demo:

metrics

github

📊 An infographics generator with 30+ plugins and 300+ options to display stats about your GitHub account and render them as SVG, Markdown, PDF or JSON!

dva

github

🌱 React and redux based, lightweight and elm-style framework. (Inspired by elm and choo)

jasmine

github

Simple JavaScript testing framework for browsers and node.js

riot

github

Simple and elegant component-based UI library