Next.js 16 SaaS Boilerplate

Next.js 16 starter for rapidly building SaaS apps with authentication, database, state management, theming, and production-grade DX baked in.

Features

• 🚀 Next.js 16 with App Router, React 19, Turbopack enabled
• 🔐 Authentication with Clerk and global route protection middleware
• 🗄️ Prisma ORM with PostgreSQL and Accelerate extension
• 📦 Generated Prisma client under lib/generated/prisma
• 🔄 TanStack Query provider with Devtools
• 🎨 Tailwind CSS with extended theme, animations, and dark mode
• 🧹 Biome for linting/formatting; Husky + lint-staged; Commitlint
• 🧪 Strict TypeScript config and path aliases (@/*)
• 🧰 Optional local Supabase setup for Postgres + Studio

Built with

• Next.js
• Tailwind CSS
• Clerk
• Prisma
• TanStack Query
• TypeScript
• Vercel AI Sdk

Tools

• Biome
• Husky
• Commitlint
• Supabase CLI (optional)

Feature Requests

Open a GitHub issue in this repository and describe your request clearly.

Setting Up Environment Variables

To run the project locally, create a .env.local file in the root directory and add the following variables:

# Database (PostgreSQL)
DATABASE_URL=

# Clerk
NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY=
CLERK_SECRET_KEY=

# Optional Clerk routes if you customize auth pages
NEXT_PUBLIC_CLERK_SIGN_IN_URL=/sign-in
NEXT_PUBLIC_CLERK_SIGN_UP_URL=/sign-up

# Optional app metadata
NEXT_PUBLIC_APP_NAME=SaaS Boilerplate

# Optional: OpenAI (only if you add AI features)
OPENAI_API_KEY=

Optional: If you use Supabase locally, run supabase start and point DATABASE_URL to the local Postgres connection.

📜 License

This project is licensed under the MIT License.

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Built with ❤️ by Anayat