Airflow is an open-source platform designed to programmatically author, schedule, and monitor workflows. It allows users to define complex data pipelines using directed acyclic graphs (DAGs), where each node represents a task and edges represent dependencies. This makes it easier to manage and automate data processing tasks, ensuring that they run in the correct order. With Airflow, users can easily visualize their workflows through a web-based interface, making it simple to track the status of tasks and troubleshoot any issues. It supports various integrations with other tools and services, enhancing its flexibility and usability in diverse data environments.