Nextacular

Nextacular is an open-source starter kit for building full-stack multi-tenant SaaS platforms, built on Next.js 13.1.0, React 18.2.0, Tailwind CSS 3.1.8, and Prisma 4.4.0.

What is Nextacular?

Nextacular is a boilerplate template that provides authentication, billing, database, email, custom domains, multi-tenancy, workspaces, and teams out of the box. It takes your core SaaS ideas and scaffolds the surrounding infrastructure so you can focus on your own features. It runs on Vercel with one-click deploy, and all code is released under the MIT License. The project is maintained by Nextacular community and has 1383 stars on GitHub.

Key Features

• Authentication — Built-in authentication via NextAuth.js (next-auth is a dependency) with preconfigured flows.
• Billing & Subscription — Stripe 10.13.0 integration for payments and recurring subscriptions.
• Multi-tenancy — A multi-tenant approach with workspaces and teams to isolate customer data.
• Database Integration — Prisma 4.4.0 with SQL/PostgreSQL support, including shadow database for migrations.
• Email Handling — Nodemailer 6.8.0 integration with email server environment variables.
• Custom Domains — Support for using custom domains per tenant/workspace.
• Landing Page — A pre-built landing page included as a template.
• SEO Support — Includes React Google Analytics 3.3.1 and SEO-friendly structure.
• Developer Experience — SWR for data fetching, React Hot Toast for notifications, and a set of simple design components.

Who is it for?

• SaaS founders and indie hackers who want to launch a multi-tenant SaaS MVP quickly without building auth, billing, and team management from scratch.
• Agencies and freelancers building custom SaaS products for clients, looking for a starting point that includes common infrastructure.
• Developers who want to learn a modern stack (Next.js, Prisma, Stripe) with a working reference implementation.

What can you do with Nextacular?

• Launch a production-ready SaaS MVP — Use the included authentication, billing, and database integrations to go live on Vercel in minutes.
• Create a multi-tenant workspace platform — Use the workspaces and teams features to let each customer manage their own members and data.
• Build a product with custom domains — Give each tenant its own subdomain or custom domain, which is configured through the platform.
• Monetize with subscriptions — Connect your Stripe account and start charging for plans with the built-in billing module.

How does Nextacular work?

Nextacular is a Next.js application that you clone or deploy via Vercel's one-click button. After deployment, you set required environment variables (like APP_URL, NEXTAUTH_SECRET, DATABASE_URL, SHADOW_DATABASE_URL, EMAIL_SERVER_USER, and Stripe keys) and run Prisma migrations to set up your database. The documentation at docs.nextacular.co provides a quick start guide for local development.

Pricing

Nextacular is free and open-source under the MIT License. There is no paid tier for the kit itself; you only pay for the hosting and services you use (e.g., Vercel, Stripe, a PostgreSQL database).

FAQ

Is Nextacular free?

Yes, Nextacular is released under the MIT License, so you can use it for commercial projects without paying a licensing fee. You are responsible for the cost of the infrastructure your SaaS uses.

What tech stack does Nextacular use?

Nextacular is built on Next.js 13.1.0 with React 18.2.0, styled with Tailwind CSS 3.1.8, and uses Prisma 4.4.0 for database access with PostgreSQL. Payments are handled through Stripe, and emails are sent via Nodemailer.

Does Nextacular handle billing and subscriptions?

Yes, Nextacular includes a billing and subscription system integrated with Stripe version 10.13.0. You can set up plans and manage recurring payments through the provided components.

Can I deploy Nextacular to Vercel?

Yes, Nextacular offers a one-click deploy button that creates a new Vercel project with the necessary environment variables. After deployment, you need to configure the remaining environment variables and set up your database.

What is the multi-tenancy approach in Nextacular?

Nextacular provides workspaces and teams to implement multi-tenancy. Each workspace can have its own members, domains, and data isolation, letting you serve multiple customers from a single app instance.