Azure Repos provides Git repositories or Team Foundation Version Control (TFVC) for source control of your code. For more information about Azure Repos, see What is Azure Repos?.
Azure Pipelines provides build and release services to support continuous integration and delivery of your applications. For more information about Azure Pipelines, see What is Azure Pipelines?.
Azure Boards delivers a suite of Agile tools to support planning and tracking work, code defects, and issues using Kanban and Scrum methods. For more information about Azure Boards, see What is Azure Boards?.
Azure Test Plans provides several tools to test your apps, including manual/exploratory testing and continuous testing. For more information about Azure Test Plans, see Overview of Azure Test Plans
Azure Artifacts allows teams to share packages such as Maven, npm, NuGet, and more from public and private sources and integrate package sharing into your pipelines. For more information about Azure Artifacts, see Overview of Azure Artifacts.