Express

Express is the standard web framework for Node.js. Express 5 (2025) finally stabilizes modern features like Promise support in middleware, removing the need for express-async-errors.

When to Use

• Microservices: Lightweight and fast.
• REST APIs: The standard for building JSON APIs in Node.
• Learning: The best way to learn how HTTP works in Node.

Quick Start (Express 5)

import express from "express";
const app = express();