SaaS Starter Kit — FastAPI + Next.js Boilerplate

A complete SaaS boilerplate covering the recurring foundations of every SaaS project: authentication, Stripe billing, team invitations, role system and an admin dashboard. Intended as a starting point for own projects.

01

Challenge

Every SaaS project starts with the same features: user auth, subscription handling, team management. Rebuilding this every time costs weeks — and carries risks in security-relevant parts.

02

Solution

FastAPI backend with JWT auth, Stripe webhook integration and PostgreSQL. Next.js frontend with dashboard layout, team settings and billing portal. Everything locally runnable with Docker Compose and documented.

03

Result

Public template repository. Fully runnable with a single command. Serves as the basis for own client projects.

Tech Stack