Create a SaaS App

If you are searching for how to create a SaaS app, start with the SaaS pack. It gives you the pieces most subscription products need before the first customer signs up: accounts, database tables, billing, email, UI, and a typed app structure.

Generate the SaaS starter

Open the SaaS pack in the Stack Builder, or run the command below.

bun create better-fullstack@latest my-saas-app \
  --ecosystem typescript \
  --frontend next \
  --backend self \
  --database postgres \
  --orm drizzle \
  --auth better-auth \
  --payments stripe \
  --email react-email \
  --api trpc \
  --css-framework tailwind \
  --ui-library shadcn-ui \
  --package-manager bun

What the pack includes

• Next.js as the web and server boundary.
• PostgreSQL with Drizzle for relational product data.
• Better Auth for sign-in, sessions, and account flows.
• Stripe for subscription billing.
• React Email for transactional email templates.
• Tailwind CSS and shadcn/ui for the product interface.
• tRPC for typed calls between React UI and server code.

First things to customize

1. Replace the generated product name, metadata, and navigation.
2. Add your core product tables next to the Drizzle schema.
3. Configure Better Auth secrets and trusted origins.
4. Create Stripe products and map them to your app plans.
5. Add transactional emails for signup, billing, and team invites.

When this is the right pack

Use this pack for subscription products, B2B dashboards, paid developer tools, team workspaces, and products where auth plus billing must be part of the first working version.

For a stack-level walkthrough, read Next.js with Drizzle and Better Auth.