FOSSFlow
FOSSFlow is an open-source diagramming and flowchart application that enables users to create, edit, and manage technical diagrams, flowcharts, and process visualizations. Built for developers, system architects, and technical teams, FOSSFlow provides an intuitive interface for designing workflows, system architectures, database schemas, and network diagrams. The application supports server-side storage for persistent diagram saving and optional Git backup integration for version control and collaboration. With a lightweight Node.js backend and modern frontend, FOSSFlow offers a self-hosted alternative to cloud-based diagramming tools, giving you complete control over your technical documentation and diagrams. Perfect for teams that need to document systems, design workflows, create technical specifications, and maintain architectural diagrams without relying on external services or sharing sensitive information with third parties.