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Open Source Workflow Orchestration Tools using CSS

A curated collection of the best open source platforms for defining, executing, and monitoring complex workflows. using CSS.

Prefect

Python-native workflow orchestration for data and ML teams

  • Stars

    24,043

  • Last commit

    17 hours ago

  • License

    Apache-2.0
Orchestrate data pipelines, ML jobs, and agent workflows in plain Python with automatic retries, scheduling, and a unified UI for every run across your infrastructure.

Open Source Alternative to:

AWS Step Functions

Mage

AI
Magical data pipeline tool for seamless transformations

  • Stars

    8,834

  • Last commit

    4 days ago

  • License

    Apache-2.0
Open-source data pipeline platform for effortless data integration, transformation, and orchestration using Python, SQL, and R.

Open Source Alternative to:

AWS Step Functions

Dagu

YAML-defined workflow orchestration, no database required

  • Stars

    Stars growing over the last 30 days4,394

  • Last commit

    23 hours ago

  • License

    GPL-3.0
Single-binary workflow orchestrator that runs scheduled DAGs locally or over SSH, with retries, human tasks, a built-in Web UI, and file-based state storage.

Open Source Alternative to:

AWS Step Functions
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