Premium SaaS Boilerplate - Next.js + Spring Boot

💎 Premium SaaS Boilerplate – Next.js + Spring Boot

Stop building auth, payments, and dashboards from scratch.

This is a production-ready, full-stack SaaS starter kit designed for developers who value their time. Skip weeks of repetitive setup and start building your actual product today.

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

✨ FEATURES BREAKDOWN

🖥️ USER APP (frontend-user)

Landing & Marketing

- Hero section with animated gradients

- Features grid with icons

- Testimonials section

- CTA sections

- Responsive footer

Authentication

- Google OAuth one-click login

- GitHub OAuth one-click login

- Protected routes

- Auto token refresh

Dashboard

- Overview with stats cards

- Subscription status display

- Project cards

- Responsive sidebar navigation

Billing & Payments

- Pricing page with 3 tiers (Standard, Pro, Enterprise)

- Stripe Checkout integration

- Subscription management

- Payment success/cancel pages

Other Pages

- Documentation page with sidebar

- FAQ page with accordion UI

- Account settings page

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🛠️ ADMIN APP (frontend-admin)

- Admin-only protected routes

- User management overview

- View all registered users

- User role display (USER, ADMIN)

- Stats and metrics display

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

⚙️ BACKEND API (backend-api)

Authentication

- JWT token generation & validation

- Google/GitHub OAuth verification

- Role-based access control

User Management

- User registration & profile

- Role assignment

- Admin-only endpoints

Payments

- Stripe Checkout session creation

- Webhook handling

- Subscription status tracking

Security

- Spring Security configuration

- CORS setup

- Protected API endpoints

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🐳 INFRASTRUCTURE

- Docker Compose for MySQL 8.0 + Redis

- Environment-based configuration

- Production-ready setup

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🛠️ TECH STACK

Frontend → Next.js 15, TypeScript, Tailwind CSS v4, shadcn/ui

Backend → Spring Boot 3.4, Java 17, Spring Security, JPA

Database → MySQL 8.0, Redis

Auth → JWT + OAuth 2.0 (Google, GitHub)

Payments → Stripe Checkout & Webhooks

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🎁 WHAT YOU GET

📁 Complete Source Code – Frontend, Backend, Admin, Docs

📖 5 Core Guides – Setup, Customization, Deployment, Features, Architecture

🔧 Config Files – Easy-to-edit pricing, menu, and branding

🐳 Docker Compose – One command to spin up your database

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🚀 PERFECT FOR

- Indie hackers building their next SaaS

- Freelancers starting client projects faster

- Startups validating ideas with an MVP

- Developers tired of boilerplate fatigue

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

⚠️ WHAT THIS IS NOT

- ❌ A no-code solution (you need basic React & Java skills)

- ❌ A video course or tutorial

- ❌ Email/password auth (OAuth only for now)

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

💬 FAQ

Q: Is this a one-time payment?

A: Yes! Pay once, use forever. No subscriptions.

Q: Can I use this for commercial projects?

A: Absolutely. Build and sell your own SaaS with it.

Q: Do I get updates?

A: Bug fixes and security patches for 12 months.

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

📦 INSTANT DOWNLOAD

After purchase, you'll receive a ZIP file:

- /backend-api – Spring Boot REST API

- /frontend-user – User-facing Next.js app

- /frontend-admin – Admin dashboard

- /docs – Complete documentation

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

📚 DOCUMENTATION INCLUDED

- START_HERE.md → Welcome guide

- SETUP.md → 10-minute setup instructions

- CUSTOMIZATION.md → Change colors, pricing, branding

- DEPLOYMENT.md → Production deployment guide

- FEATURES.md → Complete feature list

- GOOGLE_OAUTH_SETUP.md → Google OAuth setup

- GITHUB_OAUTH_SETUP.md → GitHub OAuth setup

- FAQ.md → 50+ questions answered

- ARCHITECTURE.md → System architecture

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

Ready to build? Hit the buy button and start shipping. 🚀