This document lists various SaaS boilerplates and frameworks for building software as a service applications using different programming languages and technologies. It includes Node.js boilerplates and frameworks like Async Labs SaaS Boilerplate and Usergravity. It also lists .NET Core, Python, and mobile options like a React Native boilerplate as well as RESTful API resources. The document provides open source references and links to starter kits and code generators for accelerating SaaS development.