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5 self-hosted Astronomer alternatives

Managed Apache Airflow platform for scheduling and orchestrating data workflows in the cloud. Provides hosted Airflow deployments, autoscaling, monitoring/observability, CI/CD for DAGs, multi-environment deployments, and governance for running ETL and data pipeline workloads.

Alternatives to Astronomer

Apache Airflow is a workflow orchestration platform to define, schedule, and monitor data pipelines and other batch jobs using Python-defined DAGs.

Apache Airflow screenshot

46.3k stars17.5k forksApache-2.0last commit Actively maintained

Declarative, API-first orchestration platform for scheduled and event-driven workflows with a plugin ecosystem, UI editor, CI/CD and Terraform integration.

Kestra screenshot

27.5k stars2.8k forksApache-2.0last commit Actively maintained

Open-source runbook automation platform to schedule jobs, orchestrate workflows, and provide controlled self-service operations via web UI and API.

Rundeck screenshot

6.2k stars985 forksApache-2.0last commit Actively maintained

Portable, file-backed workflow orchestrator that defines DAGs in declarative YAML, runs anywhere as a single binary, and includes a modern Web UI for monitoring and control.

Dagu screenshot

3.7k stars297 forksGPL-3.0last commit Actively maintained

On-premises IT task scheduler to centralize, schedule, and run scripts and commands across servers via SSH/WinRM, with workflows, logs, notifications, and an API.

CTFreak screenshot

Activity unknown

What replacing Astronomer actually involves

Every option on this page is open source and free to run on your own hardware, so you own the data and there is no subscription to cancel. 4 of 5 shipped a commit in the last six months. Licences in this list: Apache-2.0, GPL-3.0. In exchange you take on hosting, backups and updates yourself.

Browse everything in Automation & Workflow Builders (Low-code).

Other tools people replace alongside Astronomer