Airflow is an open-source platform used for orchestrating complex data workflows and scheduling tasks. Developed by Airbnb, it enables users to programmatically author, schedule, and monitor workflows. Airflow supports the creation of directed acyclic graphs (DAGs) that define the task dependencies and execution order. It is widely used in data engineering for ETL (Extract, Transform, Load) pipelines, batch processing, and machine learning workflows. Its extensible architecture and rich set of operators make it a powerful tool for managing large-scale, automated workflows.