Build & Deploy a Full SaaS App with Next.js 14 — The Complete 2025 Guide
Learn how to build and deploy a SaaS app using Next.js 14. A complete step-by-step guide with modern tools, APIs, Stripe, and Vercel deployment.
Build & Deploy a Full SaaS App with Next.js 14 — The Complete 2025 Guide
🚀 Introduction Next.js 14 is redefining full-stack development — and it's the perfect framework to build modern SaaS apps fast. With app routing, React Server Components , and seamless API handling, it's never been easier to launch your own software-as-a-service project. In this guide, you'll learn how to build and deploy a real SaaS app using Next.js 14, complete with authentication, Stripe subscriptions, and deployment on Vercel. 🛠️ Tools & Stack Frontend : Next.js 14 (App Router) Backend : API Routes + Server Actions Auth : NextAuth.js (or Clerk/Auth.js) Database : PostgreSQL (via Prisma) Payments : Stripe Hosting : Vercel 🪜 Step-by-Step Guide ✅ Step 1: Initialize Your Next.js 14 App npx create-next-app@latest my-saas-app --app
cd my-saas-app
npm install
Make sure to use the App Router layout ( app/ directory) and enable Server Actions . ✅ Step 2: Setup Prisma & PostgreSQL npm install prisma @prisma/client
npx prisma init
Update your .env : DATABASE_URL="p…
