⚡ SaaS Starter Kit (Next.js)

Auth, a protected dashboard, and Stripe-ready billing — already wired up. Runs instantly, no external services needed to start. Stop rebuilding the boring 80% of every SaaS.

Why

Every SaaS needs the same plumbing before you can build the actual product: sign-up, login, sessions, a protected app area, billing. This kit gives you all of it, working, so you start on day one with the interesting part.

What's inside

• 🔐 Auth that works — email + password sign-up, login, signed-cookie sessions, protected routes
• 🧑‍💻 Dashboard — a protected app shell to build inside
• 💳 Stripe-ready billing — checkout flow pre-wired; add your keys and you're charging
• 🛬 Landing page — hero, features, pricing, FAQ
• ⚡ Runs instantly — a local user store means zero services to configure to try it
• 🧱 Next.js (App Router) + TypeScript + Tailwind — modern, typed, documented

Quick start

npm install
npm run dev      # http://localhost:3000

Sign up with any email — it just works (data is stored locally in ./data/users.json).

Going to production

1. Copy .env.example → .env.local and set AUTH_SECRET (a long random string).
2. Swap the user store (lib/auth.ts, readUsers/writeUsers) for your database — Postgres, Supabase, etc. It's ~10 lines.
3. Enable billing: set STRIPE_SECRET_KEY and STRIPE_PRICE_ID. The checkout route (app/api/checkout/route.ts) is already wired.
4. Deploy to Vercel / Cloudflare / your own server.

🚀 Pro Kit

This free version is a complete, working starter. The Pro Kit adds the production playbook most people get stuck on:

• 📘 Production Playbook — Stripe subscriptions + webhooks, swap to Postgres/Supabase, add Google/GitHub OAuth, transactional email, deploy & security hardening — step by step
• 📄 Commercial license (use in unlimited client projects) + free lifetime updates

👉 Get the Pro Kit: https://alphaletgo.gumroad.com/l/saas-starter-kit

License

MIT — free for personal and commercial use. A ⭐ helps others find it.