The specific software applications and frameworks that help to ease the development of applications in the cloud-centric environment are explained in detail in this chapter. The software used to build clouds embraces distributed architecture, microservices, and quick deployments, which are not the case with traditional software development. In the chapter, these tools are grouped into several important categories: command-line interfaces (CLIs), Software Development Kits (SDKs) of major cloud providers (AWS, Azure, Google Cloud) and Integrated Development Environments (IDEs) with cloud extensions (e.g. Eclipse or VS Code). The importance of the Application Programming Interfaces (APIs) as the main way of interaction with cloud services is emphasized.