Azure DevOps is a service platform that provides tools that support collaborative software development. Azure users find many solutions that can be essential for Agile practices.
Azure Boards
It supports Scrum and Kanban and has tools for planning, tracking, and discussing work across the entire development effort.
Azure Repos
This is a set of version control tools you can use to manage your code. It supports Git, and provides a web interface for managing repositories, pull requests, and more.
Azure Pipelines
A Continuous Integration/Continuous Delivery (CI/CD) system that works with most languages, platforms, and tools. It can be used for automating builds and deployments.
Azure Test Plans
A service for managing, tracking, and planning testing efforts.
Azure Artifacts
A tool that helps teams to share packages, such as NuGet, npm, Maven, Python, and more, from public and private sources and integrate package sharing into CI/CD pipelines.
Azure DevOps Extensions
This is a marketplace full of extensions that can be added to the platform. These extensions can help to further customize and enhance the tool.
Source: Azure.com.