Nextacular

What is Nextacular?

Nextacular is a free, open-source SaaS boilerplate built with Next.js, Prisma, and Tailwind, aimed specifically at products that need subdomain-based multi-tenancy (each customer or workspace getting its own customer.yourapp.com). It moves more slowly than the actively maintained paid starter kits, but the MIT license means there's no per-project cost and the code is fully yours to modify.

Key features

• Subdomain-based multi-tenancy scaffolded in from the start, which is otherwise a nontrivial thing to build correctly
• Next.js, Prisma, and Tailwind stack, a common and well-documented combination
• MIT licensed and free, with the full source available on GitHub
• Basic auth, billing, and workspace management included as a starting point

Who it's for

Budget-constrained builders who specifically need subdomain-per-tenant architecture and are comfortable picking up a slower-moving, community-maintained codebase rather than an actively updated paid one. Teams that can afford a paid boilerplate will usually get more frequent updates, support, and polish from the paid alternatives.

Pricing

Free and open source (MIT license).