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1. Express.js – The Minimal & Fast Framework 🚀
🔹 Why Use Express?
✔ Lightweight and minimalistic
✔ Fast and flexible routing system
✔ Huge community and extensive middleware support
🔹 Best For:
✅ RESTful APIs
✅ Web applications
✅ Microservices
🔹 Example:
const express = require("express");
const app = express();
app.get("/", (req, res) => {
res.send("Hello, Express!");
});
app.listen(3000, () => console.log("Server running on port 3000"));👉 Express is the most widely used Node.js framework, powering applications like MySpace, Accenture, and IBM.
2. NestJS – Scalable & Enterprise-Grade 🏢
🔹 Why Use NestJS?
✔ Built with TypeScript for better scalability
✔ Uses modular architecture (like Angular)
✔ Supports GraphQL, WebSockets, and Microservices
🔹 Best For:
✅ Enterprise applications
✅ Scalable backends
✅ GraphQL APIs
🔹 Example:
import { Controller, Get } from '@nestjs/common';
@Controller()
export class AppController {
@Get()
getHello(): string {
return 'Hello, NestJS!';
}
}👉 Companies like Adidas, Autodesk, and Roche use NestJS for enterprise solutions.
3. Fastify – Super Fast & Lightweight ⚡
🔹 Why Use Fastify?
✔ 10x faster than Express 🚀
✔ Built-in schema validation
✔ Low overhead, high performance
🔹 Best For:
✅ High-performance applications
✅ Real-time data processing
✅ REST APIs with low latency
🔹 Example:
const fastify = require("fastify")();
fastify.get("/", async (request, reply) => {
return { message: "Hello, Fastify!" };
});
fastify.listen(3000, () => console.log("Server running on port 3000"));👉 Fastify is growing rapidly, with companies like Microsoft and NearForm using it.
4. Koa.js – Modern & Lightweight 🌿
🔹 Why Use Koa?✔ Developed by the creators of Express.js✔ Uses for cleaner code✔ No middleware bloat (fully customizable)