Open SaaS

Open SaaS is a free, open-source template designed to help developers build and launch full-stack software-as-a-service applications rapidly. It provides a complete, production-ready foundation with React on the frontend and Node.js on the backend, handling the complex setup so you can focus on your unique product logic. Think of it as a massive head start that takes care of the tedious boilerplate code required for any modern SaaS.

The kit is packed with essential features you'd otherwise have to build from scratch. It includes a fully configured user authentication system, integrations with Stripe and Lemon Squeezy for handling subscriptions and payments, and a comprehensive admin dashboard for managing users and viewing analytics. It's built with TypeScript for type safety across the entire stack and comes with examples for file uploads, email sending, and end-to-end testing. A key differentiator is its 'AI-ready' design, which includes built-in OpenAI integration and documentation optimized for working with large language models, making it easier to add AI features to your app.

This tool is ideal for developers and entrepreneurs who want to validate a SaaS idea quickly without getting bogged down in infrastructure. The template has been used to launch real products like Microinfluencer.club and Kivo.dev. It's especially valuable for solo founders or small teams who need a reliable, feature-complete starting point that includes payments, auth, and deployment options, allowing them to ship a working product to customers in a matter of days instead of months.