📦 Useful Libraries in JS, Node.js, and React

🔹 General JavaScript

Libraries that work everywhere (browser, Node, React):

  • Lodash → Utility functions for arrays, objects, strings.
  • Axios / Fetch → HTTP requests.
  • Day.js / date-fns → Date & time manipulation.
  • Validator.js → String & data validation (emails, URLs, etc.).
  • UUID / NanoID → Generate unique IDs.
  • Zod / Yup → Schema validation for objects & APIs.
  • Chart.js / D3.js → Data visualization.
  • RxJS → Reactive programming with observables.
  • Fuse.js → Lightweight fuzzy search.

🔹 Node.js (Backend)

Libraries for APIs, databases, and backend utilities:

  • Express.js → Minimal web server framework.
  • Fastify → Faster alternative to Express.
  • NestJS → Opinionated framework with TypeScript support.
  • Mongoose / Prisma / Sequelize → Database ORM/ODM.
  • jsonwebtoken (JWT) → Authentication with tokens.
  • bcrypt / argon2 → Password hashing.
  • Joi / Zod → Request validation.
  • winston / pino / morgan → Logging.
  • dotenv → Environment variable management.
  • multer → File uploads.
  • bull / agenda / bree → Job queues & scheduling.
  • socket.io → Real-time WebSocket communication.
  • puppeteer / Playwright → Headless browser automation.

🔹 React (Frontend)

Libraries for UI, state management, and data fetching:

  • React Router → Client-side routing.
  • TanStack Query (React Query) → Data fetching, caching, server state.
  • Redux Toolkit / Zustand / Jotai → State management.
  • Formik / React Hook Form → Form handling & validation.
  • Zod / Yup → Schema validation with forms.
  • Axios / Fetch / GraphQL (Apollo, urql) → API requests.
  • Tailwind CSS / styled-components / Emotion → Styling.
  • Material UI (MUI) / Ant Design / Chakra UI / shadcn/ui → UI components.
  • Framer Motion → Animations.
  • Recharts / Victory / Nivo → Charting for React.
  • Next.js → Full-stack React framework (SSR, SSG).
  • Storybook → UI component playground.
  • Testing Library + Jest / Vitest → Unit & integration testing.
  • Cypress / Playwright → E2E testing.
  • Quill/Tip-Top - Editors