Nextacular
Nextacular is an open source starter kit designed to expedite the development of full-stack, multi-tenant SaaS applications. Built with modern technologies such as Next.js, Tailwind CSS, and Prisma, it offers a suite of out-of-the-box features to streamline the development process. These features include authentication via magic links and social logins through NextAuth, database integration with relational databases like PostgreSQL and MySQL, and multi-tenancy support to serve multiple customers across different subdomains or custom domains using a single unified codebase. Nextacular also provides teams and workspaces functionality, allowing users to invite team members to collaborate within workspaces. The platform includes a customizable landing page, billing and subscription management through Stripe integration, and simple design components built with Tailwind CSS that can be configured according to your design system.
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FastPocket
FastPocket is a comprehensive SaaS boilerplate designed to expedite the development of online businesses by providing a pre-built codebase, component library, detailed documentation, deployment templates, and guides covering development, design, and marketing. It integrates essential functionalities such as payment processing with Stripe, user authentication, and email templates, all within a Next.js framework. The platform offers customizable UI components, including buttons, modals, and popovers, alongside sections like pricing, FAQs, and blogs, enabling rapid assembly of web pages. FastPocket supports various backend options, offering deployment templates compatible with services like Digital Ocean, Fly.io, and Pockethost, granting developers control over hosting environments. The inclusion of TailwindCSS and DaisyUI facilitates swift styling to align with specific brand aesthetics.
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SaaS Forge
SaaS Forge is an open-source boilerplate designed to expedite the development of SaaS applications by providing a modular, ready-to-use codebase. It utilizes Python for the backend and ReactJS for the front end, incorporating JWT authentication, a RESTful API, and a database ORM integrated with PostgreSQL. The front end features a responsive design based on Bootstrap 4, with pre-built components such as login, registration, email confirmation pages, a single-page application dashboard, profile views, and a collapsible tree menu. The boilerplate includes automated imports of API endpoints, initialization of services and extensions, predefined database models with automatic updates, and customizable themes. Advanced functionalities encompass Stripe payment integration, a user administration dashboard, and social login options like Google authentication. SaaS Forge is compatible with deployment platforms such as Heroku and AWS Elastic Beanstalk.
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Open SaaS
Open SaaS is a fully open source, full-stack SaaS starter kit built on the Wasp framework (React + Node.js + Prisma). It comes pre-integrated with core SaaS features, including user authentication (email, Google, GitHub), payment/subscription workflows via Stripe or Lemon Squeezy, file upload support (AWS S3), analytics dashboards (Plausible or Google Analytics), and an example AI-enabled app leveraging the OpenAI API for rapid prototyping. The template emphasises end-to-end type-safety, job scheduling, background tasks, and one-command deployment (e.g., wasp deploy) across hosting platforms like Fly.io, Railway, or custom providers. The codebase is organised vertically by feature (auth, payments, client UI, server logic, e2e tests) and includes guides for SEO, testing (via Playwright), deployment, updating, and customization. The project is MIT-licensed, free to use and distribute, and designed to eliminate boilerplate so developers can focus on building product logic.
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