Building a SaaS doesn't have to take months. With the right foundation, you can go from idea to live product in a single weekend. Here's how.
The Stack That Saves You Time
Before writing a single line of business logic, you need to choose a stack that handles the boring parts for you:
- Authentication — login, register, password reset, OAuth
- Payments — Stripe subscriptions, webhooks, billing portal
- Database — schema, migrations, type-safe queries
- Email — transactional emails that don't end up in spam
SaaSKit handles all of this out of the box.
Step 1: Clone and Configure
git clone https://github.com/you/saaskit my-saas
cd my-saas
cp .env.example .env.local
npm install
Fill in your environment variables — Stripe keys, database URL, NextAuth secret, OpenAI key — and you're ready to run.
Step 2: Customize Your Branding
Update src/lib/seo.ts with your product name and URL. Change the color scheme in tailwind.config.ts. That's it — the entire template uses CSS variables, so one change propagates everywhere.
Step 3: Define Your Pricing
Edit src/lib/stripe.ts to set your plan names, prices, and limits:
export const PLANS = {
STARTER: {
name: "Starter",
price: 9,
limits: { messagesPerMonth: 100 },
},
PRO: {
name: "Pro",
price: 29,
limits: { messagesPerMonth: 1000 },
},
};
Create the corresponding products in your Stripe dashboard, then paste the price IDs into your .env.local.
Step 4: Ship
git push
Vercel auto-deploys on every push. Add your custom domain, and you're live.
The hardest part of launching a SaaS isn't the code — it's finding customers. Once your infrastructure is handled, you can focus entirely on that.
The best time to launch was yesterday. The second best time is today.