Express.js in 2027: Still Relevant, Now Smarter

Front
Back
Right
Left
Top
Bottom
WHY

Why I'm Still Writing About Express for 2027

Every few months, someone in my DMs asks: “Should I still learn Express.js? Isn’t it dead?”

My answer is always the same — no, it’s not dead. It’s mature.

I’ve been building backend systems for nearly a decade. And I keep coming back to Express — not out of habit, but because it still makes sense for a wide class of real-world problems.

I’m writing for developers at every level — from students taking their first steps in backend, to founders deciding what stack to put their product on, to engineers leading architecture decisions at scale.

Let’s start from the ground up.

WHAT

What Is Express.js, Really?

Express.js is a minimal, unopinionated web framework for Node.js. That’s the official description — and it’s accurate, but it undersells the point.

Think of it this way: Node.js gives you the engine. Express gives you the steering wheel, brakes, and a gear shift — without telling you what road to drive on.

“Express provides a thin layer of fundamental web application features, without obscuring Node.js features that you know and love.”
expressjs.com

It was created by TJ Holowaychuk in 2010 and is now maintained by the Express.js open-source community. As of 2025, Express v5 is the stable, production-ready release — and as of this writing, it’s the default version on npm.

Key facts
STILL WIN
Where Does Express Still Win?

Express vs Fastify vs Hono

This is the question everyone debates. Here’s my honest breakdown as someone who’s shipped production code with all three.
Framework Best For Requests/sec (approx.) Key Features
Express Broad use, teams, legacy compatibility ~8,000–15,000 Massive ecosystem, 15+ years of middlewared>
Fastify High-throughput JSON APIs ~22,000–30,000 Schema validation built-in, native serialization, 2–3x faster than Express
Hono Edge, serverless, multi-runtime ~25,000+ (up to 40K on Cloudflare) TypeScript-first, ultra-small bundle (14KB), zero dependencies, runs everywhere
Fastify is 2–3× faster than Express for raw JSON throughput — that’s real. Hono is even leaner at the edge.
But here's what the benchmarks don't tell you:
"Express has been the de facto standard for Node.js web applications since 2010."

BetterStack Community

Choose Express when:

Choose Fastify when: raw throughput is a core requirement

Choose Hono when: you’re targeting Cloudflare Workers or edge environments

V5
What Actually Changed

Express v5

After nearly 10 years of development, Express v5 was officially released on October 15, 2024 — a massive milestone.

The biggest changes:

Native async/await error handling
In v4, an unhandled rejected promise in a route handler would silently crash your app. In v5, rejected promises are automatically caught by the router as errors. This alone is a huge DX improvement.
📘
// Express v5 — this just works now
app.get('/users', async (req, res) => {
  const users = await db.getUsers(); // If this throws, Express catches it
  res.json(users);
});
TYPESCRIPT
TypeScript + ESM

Setting Up a Modern Express App

Let’s build a clean, type-safe Express app from scratch using the tooling stack that made sense in 2025 and will continue to make sense in 2027.

Step 1: Initialize the project
📘
mkdir my-express-api
cd my-express-api
npm init -y
Step 2: Install dependencies
📘
npm install express
npm install --save-dev typescript tsx @types/express @types/node
Why `tsx`?

It’s a TypeScript runner that supports ESM natively with near-zero config — no `ts-node` complexity.

Step 3: Configure TypeScript
📋
// tsconfig.json
{
  "compilerOptions": {
    "target": "ESNext",
    "module": "ESNext",
    "moduleResolution": "NodeNext",
    "rootDir": "./src",
    "outDir": "./dist",
    "strict": true,
    "esModuleInterop": true,
    "skipLibCheck": true
  },
  "include": ["src/**/*"]
}
Step 4: Update `package.json`
📋
{
  "type": "module",
  "scripts": {
    "dev": "tsx watch src/index.ts",
    "build": "tsc",
    "start": "node dist/index.js"
  }
}
Step 5: Your first type-safe Express server
📋
// src/index.ts
import express, { Request, Response } from 'express';

const app = express();
app.use(express.json());

app.get('/health', (req: Request, res: Response) => {
  res.json({ status: 'ok', timestamp: new Date().toISOString() });
});

app.listen(3000, () => {
  console.log('Server running on http://localhost:3000');
});
Step 6: Run it
💻
npm run dev
That’s it. You have a type-safe, ESM-compatible Express server running in under 5 minutes.
STRUCTURE

Project Structure That Actually Scales

Here’s the folder structure I use on real projects. It follows a layer-based (Clean Architecture) approach — proven to be more stable for teams than feature-based organization.
💻
my-express-api/
├── src/
│   ├── routes/          # Route definitions (thin — just HTTP binding)
│   │   └── user.routes.ts
│   ├── controllers/     # Request/response logic
│   │   └── user.controller.ts
│   ├── services/        # Business logic
│   │   └── user.service.ts
│   ├── repositories/    # Database access layer
│   │   └── user.repository.ts
│   ├── middleware/      # Reusable middleware
│   │   ├── auth.ts
│   │   └── error.ts
│   ├── config/          # Env vars & configuration
│   │   └── env.ts
│   └── index.ts         # Entry point
├── dist/
├── tsconfig.json
├── package.json
└── .env
Why layer-based over feature-based?

Business requirements change. When the product team renames a feature, you don't want to rename 15 files. Layer-based architecture keeps your backend stable while the product evolves.
#01
Pattern 1

Common Mistakes Beginners Make

Explore project snapshots or discuss custom web solutions.

The best tool is the one your team can use effectively. Mastery of fundamentals always outlasts framework trends.

David Thomas & Andrew Hunt, The Pragmatic Programmer

Thank You for Spending Your Valuable Time

I truly appreciate you taking the time to read blog. Your valuable time means a lot to me, and I hope you found the content insightful and engaging!
Front
Back
Right
Left
Top
Bottom
FAQ's

Frequently Asked Questions

Yes — it's the most documented backend framework in the JavaScript ecosystem. The learning curve is gentle, and debugging help is everywhere.

Always v5 for new projects. It has native async/await support, better security, and cleaner code. v4 enters maintenance mode in 2026.

Yes, especially when paired with NestJS (which runs on Express under the hood) or when structured with clean architecture. Many Fortune 500 companies use Express in production.

NestJS is an opinionated framework built on top of Express (or Fastify). It adds dependency injection, decorators, and modules. Express is the raw, unopinionated layer beneath.

Yes — solid JavaScript (and ideally TypeScript) fundamentals are important. Specifically: async/await, callbacks, and basic HTTP concepts.

Comments are closed