Best Workflow Orchestration Open Source Tools in 2026

Open Source Alternatives

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Open Source Alternatives

Node-RED

stars 23.6Kforks 3.9K

Low-code event-driven programming with a browser-based editor

Low-code Workflow Automation Developer Tools+4

Automatisch

stars 13.9Kforks 1.1K

Self-hosted Zapier alternative for workflow automation

Workflow Automation No Code Self Hosted+3

Windmill

stars 17.7Kforks 1.1K

Developer platform for scripts, automations, and internal tools

Workflow Orchestration Developer Tools Low-code+3

Activepieces

stars 24.1Kforks 4.1K

Build AI-powered automations and agents without vendor lock-in

Workflow Automation AI Agents No Code+3

AI-Flow

stars 292forks 52

Visually chain AI models and APIs into automated pipelines

Workflow Automation Workflow Orchestration LLMOps+4

Digger

stars 5Kforks 608

Self-hosted Terraform CI/CD that runs natively in GitHub Actions

CI/CD Platforms Infrastructure as Code Workflow Orchestration+5

Ploomber

stars 3.6Kforks 243

Build reproducible Python data pipelines with DAG orchestration

Workflow Automation Developer Framework Developer Tools+5

Temporal

stars 22.6Kforks 1.8K

Durable workflow orchestration for reliable, long-running apps

Workflow Orchestration Workflow Automation Developer Framework+4

Novu

stars 39.7Kforks 4.4K

Open source notification infrastructure for product teams

API Infrastructure Developer Tools Email+5

Dagster

stars 16.1Kforks 2.3K

Asset-based data pipeline orchestration with a built-in catalog

Workflow Orchestration Workflow Automation LLMOps+3

Kestra

stars 27.9Kforks 3K

Declarative workflow orchestration for data and DevOps teams

Workflow Orchestration Workflow Automation DevOps Tools+5

Workflow Orchestration

Jentic Mini