Next.js Multitenant SaaS Boilerplate

A production-ready, full-stack multi-tenant SaaS boilerplate built with modern web technologies. Enables rapid development of B2B SaaS applications with complete tenant isolation, subscription management, and role-based access control.

Tech Stack

NextJS

TypeScript

React

PostgreSQL

TailwindCSS

Frontend

Next.js 15, React 19, TypeScript, Tailwind CSS 4

Backend

Next.js API Routes (RESTful)

Database

PostgreSQL 15+ with Drizzle ORM

Authentication

JWT via jose library with HTTP-only cookies

What is it?

A production-ready, full-stack multi-tenant SaaS boilerplate that accelerates the development of B2B SaaS applications. It includes complete tenant isolation, subscription management, role-based access control, and all the essential features needed to launch a SaaS product quickly.

Why use it?

Building a SaaS application from scratch takes months of development time. This boilerplate provides all the foundational features—authentication, multi-tenancy, subscriptions, and more— so you can focus on building your unique product features instead of reinventing the wheel.

Architecture Highlights

Multi-Tenancy Architecture

Row-level isolation with automatic company ID validation on all requests. Every database query is filtered by tenant ID, and subscriptions enforce feature access control per tier.

Security Best Practices

JWT secrets in environment variables, HTTPS for HTTP-only cookies, rate limiting on API endpoints, Zod schema validation, Content Security Policy headers, comprehensive audit logs, API key rotation, and 2FA support.

Database Schema

Core tables include companies, users, subscriptions, payments, notifications, auditLogs, apiKeys, integrations, and integrationLogs with comprehensive relationship management using Drizzle ORM.

Developer Experience

Full TypeScript type safety, Drizzle ORM with PostgreSQL, RESTful API architecture, Docker containerization for development and deployment, and modern tooling throughout.

Core Features

Complete company/tenant management with isolated data
Role-based access control (ADMIN, MANAGER, STAFF, VIEWER)
Multiple subscription tiers (FREE, BASIC, PRO, ENTERPRISE)
Payment processing and transaction tracking
JWT-based authentication with HTTP-only cookies
Two-factor authentication support
Comprehensive audit logging (CREATE, UPDATE, DELETE, LOGIN, LOGOUT, EXPORT, IMPORT)
Granular permission system
API key management with secure key/secret pairs

Business Features

Multi-tier notification system (SYSTEM, ALERT, TASK, UPDATE, BILLING)
API key management framework
Integration support (Payment Gateways, Email, SMS, ERP, CRM)
Email verification workflows
Dark mode support with per-tenant theming
Built-in reporting and Excel export functionality

Perfect For

B2B SaaS platforms requiring tenant isolation

Project management tools with team collaboration

CRM and customer management systems

Analytics and reporting platforms

Workflow automation tools

Team communication and collaboration apps

Getting Started

# Clone and setup
git clone https://github.com/sudharsangs/nextjs-multitenant-saas-boilerplate
cd nextjs-multitenant-saas-boilerplate
cp .env.example .env

# Install dependencies
npm install

# Setup database
npm run db:migrate

# Start development server
npm run dev