draw.io

The application provides a configurable diagramming and whiteboarding environment for creating a range of visual models, including flowcharts, process diagrams, organizational charts, UML, entity‑relationship, and network diagrams. It runs in a web browser and can also be deployed as a self‑hosted service, Docker container, or desktop package, offering a free tier without subscription requirements. The tool supports importing files from formats such as .vsdx, Gliffy, and Lucidchart, and can export SVG for embedding in web pages, though it is not an SVG editor.

Target users are individuals and teams that need to produce structured diagrams for software design, business processes, database schemas, or network planning. Because the source code is released under the Apache‑2.0 license, developers can host their own instances and modify the software within the licensing constraints. The project is maintained by a dedicated core team and does not accept external pull requests.

What distinguishes the software is its open‑source, self‑hostable nature combined with a stable, mature codebase that includes extensive icon sets and stencil libraries. It runs on modern browsers across desktop and mobile platforms, and the official Docker image simplifies deployment for private or enterprise environments.