SaaS Forge is an open-source framework tailored to accelerate the creation of SaaS applications by offering a modular and ready-to-implement codebase. This boilerplate is built on a Python backend and a ReactJS frontend, featuring JWT authentication, a RESTful API, and a database ORM that works seamlessly with PostgreSQL. The frontend is designed to be responsive and utilizes Bootstrap 4, providing a collection of pre-designed components including login and registration pages, email confirmation interfaces, a single-page application dashboard, profile views, and a collapsible tree menu for navigation. Additionally, the boilerplate automates the importation of API endpoints, sets up services and extensions, includes predefined database models that allow for automatic updates, and supports customizable themes to enhance user experience. For more advanced features, it integrates with Stripe for payment processing, offers a user administration dashboard, and supports social login options such as Google authentication. Furthermore, SaaS Forge is optimized for deployment on platforms like Heroku and AWS Elastic Beanstalk, making it a versatile choice for developers. With its comprehensive set of tools and features, SaaS Forge significantly streamlines the development process for SaaS applications.