Building a Modern SaaS with Next.js

Instead of setting pt-4 pb-4, you can just usepy-4

In this guide, we will walk through how to build a modern SaaS application using Next.js, TypeScript, and scalable frontend architecture.

Why Next.js is a Great Choice

Next.js provides server-side rendering, routing, and performance optimizations out of the box, making it ideal for SaaS products.

Great products are built on simple architecture that scales with time.

Project Setup

Start by creating a new Next.js project:

npx create-next-app@latest my-saas-app cd my-saas-app npm install npm run dev

Core Features to Build

Authentication system (Auth.js / NextAuth)
Dashboard with analytics
Subscription billing (Stripe)
User settings panel

Folder Structure

A clean structure helps maintain scalability:

/app /dashboard /auth /settings /components /lib /hooks

UI Example

Below is an example of a dashboard layout concept:

Important React Pattern

Use reusable hooks for cleaner logic separation:

import { useState, useEffect } from "react"; 
export function useFetch(url) { 
const [data, setData] = useState(null);
useEffect(() => {
fetch(url).then(res => res.json()).then(setData); }, [url]); return data;
}

Best Practices

Keep components small and reusable
Use server components where possible
Optimize images using Next.js Image
Minimize client-side JavaScript

Performance Tips

Always measure before optimizing. Focus on real bottlenecks instead of assumptions.

Premature optimization is the root of many engineering problems.

Final Thoughts

Building SaaS products is about balancing speed, scalability, and user experience. Start simple, then iterate.