Azure Pipelines is a cloud-based service that helps developers automate the process of building, testing, and deploying their applications. It supports various programming languages and platforms, allowing teams to integrate their code changes quickly and efficiently. This service is part of the broader Azure DevOps suite, which provides tools for project management and collaboration. With Azure Pipelines, users can create continuous integration and continuous delivery (CI/CD) workflows. This means that every time code is updated, it can be automatically tested and deployed to production, ensuring that software is always up-to-date and reliable. The service also integrates with popular version control systems like GitHub and Bitbucket.