These are SaaS solutions used by developers, project managers, students, and all other people from the IT world. Serves for easier synchronization of software development, between backend and frontend. That is, in the case of frontend development, it is not necessary to wait for the REST API to complete. All it takes is to create fake backend API's and share the repository with the team. The solution also has a code generator (Java) with support for docker technology. It can be used globally. Supported for all technologies. It is used by people all over the world.