SupaSaaS is a production-ready SaaS starter kit built around Next.js 15, React, TypeScript, Tailwind CSS 4, and Prisma.

It provides a complete foundation for developers, startups, agencies, and founders building SaaS applications. The project includes authentication, subscription billing, email workflows, database integration, secure file storage, and a structured architecture designed for customization.

The authentication system supports Google OAuth, email and password login, optional email verification, and secure sessions through NextAuth.js.

For subscriptions and billing, SupaSaaS integrates Stripe with recurring plans, checkout, webhook synchronization, customer billing management, and support for multiple pricing tiers.

The database layer uses Prisma ORM with support for PostgreSQL or MongoDB, while AWS S3 provides scalable file and media storage with secure uploads, CDN support, and image optimization.

Email functionality includes Resend and SMTP support, customizable React Email templates, and automated transactional workflows.

The starter kit is also designed for Vercel deployment and includes environment configuration examples, documentation, integration guidance, and troubleshooting information.

Core Features

• Next.js 15 with TypeScript

• React-based application architecture

• Tailwind CSS 4

• shadcn/ui components

• Production-oriented project structure

• Responsive user interface

• Google OAuth authentication

• Email and password authentication

• Optional email verification

• Secure session handling with NextAuth.js

• Stripe recurring subscription billing

• Stripe checkout integration

• Stripe webhook automation

• Customer billing portal

• Multiple subscription plans and tiers

• Prisma ORM

• PostgreSQL support

• MongoDB support

• Type-safe database queries

• Database migration support

• Resend email integration

• SMTP email support

• React Email templates

• Automated transactional emails

• AWS S3 storage integration

• Secure file uploads

• CDN support

• Image compression and resizing

• Server Actions

• Middleware support

• Reusable hooks

• Full TypeScript coverage

• Vercel deployment support

• HTTPS support

• Custom domain support

• Environment configuration examples

• Comprehensive documentation

Included

• Full Next.js project source code

• Database models

• Migration files

• Authentication logic

• Subscription and billing logic

• Email templates and workflows

• AWS S3 integration

• Environment configuration examples

• Setup and deployment documentation

• Node.js 18 or higher

• NPM or Yarn

• PostgreSQL or MongoDB database

• Stripe account for subscription billing

• Resend or SMTP provider for email delivery

• AWS S3 bucket for file and media storage

• Vercel account for deployment is optional but recommended

Setup Requirements

• Configure the project's environment variables

• Configure the database connection

• Run Prisma database migrations

• Configure Stripe API keys and webhook endpoint

• Configure Resend or SMTP credentials

• Configure AWS S3 credentials

• Install project dependencies

• Start the development server with the provided npm or Yarn command