Spring Boot 4.1.0 · Java 21 · 42 tests passing

Stop rebuilding auth.
Start shipping.

Production-ready Spring Boot SaaS boilerplate with auth, JWT, Google OAuth2, email verification — tested, documented, and ready on day one.

Buy on Gumroad — $49 View on GitHub
One-time payment · Private GitHub access · Email support
42
Tests passing
17
API endpoints
5
Database tables
7
Doc guides
4.1.0
Spring Boot
The Problem

You waste weeks before building anything

Every SaaS project starts the same way. Setting up things that have nothing to do with your product.

Without SpringLaunch
  • ✗ Wire Spring Security from scratch
  • ✗ Build JWT token generation and validation
  • ✗ Implement email verification flow
  • ✗ Build forgot password system
  • ✗ Set up Google OAuth2
  • ✗ Configure Docker and CI/CD
  • ✗ Write tests for all of the above
  • ✗ Debug security edge cases
With SpringLaunch
  • ✓ Auth system already built and tested
  • ✓ JWT with HTTP-only cookie refresh
  • ✓ Email verification working
  • ✓ Password reset working
  • ✓ Google OAuth2 working
  • ✓ Docker and CI/CD included
  • ✓ 42 tests included
  • ✓ Start building on day one
Features

Everything in one place

Built with Spring Boot 4.1.0 and Java 21. No deprecated APIs. No tutorial-level shortcuts.

🔐
JWT Authentication
Access tokens in response body (15 min). Refresh tokens in HTTP-only cookie (7 days). Token type enforcement.
📧
Email Verification
Users must verify email before logging in. 24 hour expiry. Resend endpoint included. Async — does not block registration.
🔑
Password Reset
Secure forgot password flow. One-time token, 1 hour expiry. Always returns success — prevents user enumeration.
🌐
Google OAuth2
Sign in with Google. Auto-generates username. Email conflict handling built in. Same JWT flow as regular login.
🛡️
Argon2 Hashing
OWASP recommended Argon2id via Password4j. Memory-hard against GPU brute force. Not the deprecated Spring encoder.
👤
User Management
Get profile, update name and username, change password, delete account with cascade cleanup.
📦
Example CRUD
Full Items CRUD to learn from. Ownership enforced at database level. Rename to your domain in minutes.
🔢
API Versioning
All endpoints under /api/v1/. ApiVersion constant in one place. Add /v2/ without breaking existing clients.
🐳
Docker Ready
Multi-stage Dockerfile. Docker Compose for local PostgreSQL. Full stack compose for testing. Non-root container.
⚙️
GitHub Actions CI
Runs on every push to main. Java 21 with Maven cache. 42 tests automatically. Reports uploaded on failure.
📖
Swagger UI
Auto-generated at /api/swagger-ui. Authorize button — paste JWT and test all endpoints interactively.
📚
7 Doc Guides
Setup, structure, env vars, auth flows, adding features, deployment, and customization — all inside the private repo.
API

17 endpoints ready to use

All versioned under /api/v1/. Swagger UI included for interactive testing.

Authentication
POST/api/v1/auth/register
POST/api/v1/auth/login
GET/api/v1/auth/verify?token=
POST/api/v1/auth/resend-verification
POST/api/v1/auth/forgot-password
POST/api/v1/auth/reset-password
POST/api/v1/auth/refresh
POST/api/v1/auth/logout
Users
GET/api/v1/users/me
PATCH/api/v1/users/me
PUT/api/v1/users/me/password
DELETE/api/v1/users/me
Items — Example CRUD
GET/api/v1/items
POST/api/v1/items
GET/api/v1/items/{id}
PUT/api/v1/items/{id}
DELETE/api/v1/items/{id}
Health
GET/api/health
Tech Stack

Latest stable versions only

No deprecated APIs. No legacy workarounds. Built for 2026.

Java
21 LTS
Spring Boot
4.1.0
Spring Security
7.1.0
JJWT
0.12.6
Password4j
1.8.4
MapStruct
1.6.3
Lombok
1.18.46
SpringDoc OpenAPI
3.0.3
PostgreSQL
16
Pricing

One payment. Yours forever.

No subscription. No monthly fees. Pay once and use it for your project.

Available Now
SpringLaunch API
$49
One-time payment · Lifetime access
  • ✓ Spring Boot 4.1.0 backend
  • ✓ JWT + Google OAuth2
  • ✓ Email verification + reset
  • ✓ 17 REST endpoints
  • ✓ 42 tests included
  • ✓ Docker + GitHub Actions CI
  • ✓ Render deployment config
  • ✓ 7 documentation guides
  • ✓ Private GitHub repo access
  • ✓ Email support
Buy on Gumroad — $49
Coming Soon
SpringLaunch Full Stack
$79
API buyers pay $30 to upgrade
  • ✓ Everything in API
  • ○ Angular 22 frontend
  • ○ Login + Register pages
  • ○ Dashboard + profile page
  • ○ Items CRUD pages
  • ○ Auth guard + interceptor
  • ○ HTTP-only cookie handling
  • ○ Google OAuth2 callback
  • ✓ Email support
Join Waitlist
After Purchase

How you get access

Simple. No waiting. No complicated process.

1
Buy on Gumroad
One-time payment of $49. Enter your GitHub username at checkout.
2
Receive GitHub invitation
Within 24 hours you receive a private GitHub repository invitation by email.
3
Accept the invitation
Click accept — you now have full access to the private repository and all documentation.
4
Clone and start building
Database running in one command. Swagger UI ready in minutes. Start building your product — not the setup.
FAQ

Common questions

Can I use this for commercial projects?
Yes. One license covers one commercial project. You own everything you build on top of it.
Can I share the code with my team?
Yes — with team members working on the same project. You cannot redistribute or resell the boilerplate itself.
What Spring Boot version does this use?
Spring Boot 4.1.0 — the latest stable release as of June 2026. Java 21 LTS. No deprecated APIs anywhere in the codebase.
Do I need a frontend to use this?
No. Works with any frontend — React, Vue, Angular, mobile apps, or any HTTP client. Pure REST API.
What database does this use?
PostgreSQL 16. Docker Compose included for local dev. Deployment guide covers Neon (free forever) and Render.
Do I get updates?
Yes. Updates pushed to the private repo. Pull when you want them.
Is this reactive — WebFlux or R2DBC?
No. Blocking Spring MVC and JPA. Reactive adds complexity most SaaS products do not need.
Are refunds available?
Due to the digital nature of the product, all sales are final. Email sujan.officals@gmail.com with concerns before purchasing.

Ready to skip the setup?

Everything is already built. Start shipping your product today.

Buy on Gumroad — $49
Questions? sujan.officals@gmail.com