Open Source Alternatives to AWS Step Functions

A workflow orchestration service that allows users to build and coordinate distributed applications using visual workflows. It transforms business logic into visual diagrams through a drag and drop interface to simplify development and troubleshooting. The product automates service integration across over 220 AWS services and manages state and error handling to improve application reliability. It is designed for developers and IT professionals to automate ETL processes, orchestrate microservices, manage large scale parallel workloads, and implement security incident response workflows. The service is deployed as a serverless architecture that scales based on workload volume. It supports both standard workflows based on state transitions and express workflows based on request volume and duration. This orchestration tool enables the integration of agentic workflows across public and private endpoints with human in the loop controls.

Whether you want to cut software costs or escape vendor lock-in, these open source alternatives to AWS Step Functions give you an option you fully own. You can self-host them, so your data stays on infrastructure you control. This page lists 4 open source alternatives to AWS Step Functions. The most popular are Apache Airflow, Kestra and Temporal. Most use the Apache-2.0 or BSD-3-Clause license, and 4 offer an official Docker image.