SWMM5 Explorer is a browser-based platform for exploring, visualizing, and running the EPA Storm Water Management Model (SWMM5) engine. It includes a source code browser for the bundled SWMM5 C codebase, D3/Sankey flow diagrams, AI-assisted code analysis, and an INP file generator, built with a React/TypeScript/Vite frontend and an Express backend backed by PostgreSQL.
Released under the MIT License (see LICENSE).