OmniSharp server (HTTP, STDIO) based on Roslyn workspaces
The open source Zapier alternative. Build workflow automation
Open source workflow automation platform built for developers
Workflow-Streamlined next-generation request tools
Light-weight workflow and business process management pltaform
an Open Source BPMN 2.0 / DMN 1.1 Modeler
Document Management System and Content Management System
JobScheduler workload automation to execute jobs and workflows
Cress is a comprehensive toolset for graphical service/workflow design
Editor for Petri nets
YAGF is a tesseract and cuneiform wrapper and helper*