Draw.io
Draw.io is a versatile, self-hosted diagramming tool designed for individuals and teams. It provides an intuitive, drag-and-drop interface for creating flowcharts, network diagrams, UML diagrams, and more. Draw.io supports integrations with various cloud storage solutions such as Google Drive, OneDrive, and local storage for easy file management. With a focus on simplicity and functionality, Draw.io enables seamless collaboration and offline access, ensuring that users can work efficiently. Its rich library of shapes, templates, and customization options caters to a wide range of diagramming needs.
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.
Kroki
Kroki is a self-hosted diagramming and visualization service that allows users to generate diagrams from textual descriptions. It supports multiple diagramming formats, including Mermaid, BPMN, Excalidraw, PlantUML, Graphviz, and more. With Kroki, users can convert structured text into graphical representations quickly and efficiently. The application provides a simple API, making it easy to integrate with other tools. It is lightweight, supports multiple diagram rendering engines, and ensures full control over your data with a self-hosted deployment.