Apache Airflow is a powerful open source technology for scheduling and managing workflows. It's a platform that enables developers to create complex workflows with repeatable tasks that can be easily monitored and managed. With Airflow, developers can easily orchestrate, schedule and monitor business processes in an efficient and reliable manner. It's highly scalable, allowing tasks to be executed in parallel across multiple nodes. It also provides a web interface for viewing and managing the workflow processes. Airflow is ideal for automating data pipelines and ETL processes, as well as for monitoring and managing complex data processing tasks. It's an invaluable tool for any developer looking to automate workflows and streamline processes.