Azure DevOps, formerly known as Visual Studio Team Services (VSTS), is a set of development tools and services offered by Microsoft. It provides a comprehensive platform for managing the entire DevOps lifecycle, including version control, CI/CD pipelines, project tracking, testing, and more. Azure DevOps integrates seamlessly with Azure cloud services, making it easier for teams to build, deploy, and manage applications on Azure infrastructure. It supports a wide range of programming languages, platforms, and development methodologies, making it a versatile solution for organizations adopting DevOps practices.