What is Inptools? Everything You Need to Know Inptools is a specialized, open-source software package designed to process, convert, and manage EPANET INP files. Water resource engineers, hydrologists, and GIS professionals use it to bridge the gap between hydraulic modeling software and modern geographic information systems. By offering command-line utilities and operating system integration, it simplifies data manipulation for complex water distribution networks. Core Capabilities and Tools
The software functions as a Swiss Army knife for hydraulic modelers, packaging several discrete utilities that target common data conversion bottlenecks. 1. GIS Integration (inp2shp)
The inp2shp tool converts standard EPANET .inp text files into GIS-compatible ESRI Shapefiles. This allows engineers to instantly visualize pipeline networks, nodes, pumps, and valves inside GIS platforms like QGIS or ArcGIS. 2. Coordinate Projection (inpproj)
Hydraulic models frequently suffer from misaligned geographic data when compiled from different municipal sources. The inpproj utility fixes this by converting and projecting files using Gauß-Krüger coordinates (GK3) directly into standard geographic (WGS84) coordinates. 3. Tabular Data Extraction (epanet2csv)
Extracting simulation results from raw binary files can be cumbersome. epanet2csv converts EPANET binary result files into two distinct CSV spreadsheets:
One file cleanly aggregating all node results (pressure, demand, water quality).
One file tracking all link results (flow rates, velocity, head loss).
These CSVs can be directly imported into spreadsheet software like Microsoft Excel or relational databases like PostgreSQL. Technical Specifications & Environment Support License Open-source under the GNU General Public License (GPL) Primary Developer Steffen Macke Supported OS
Windows (Command line & Explorer context menu), Linux (Ubuntu PPA) Source Code Maintained on the Inptools GitHub repository How to Install Inptools On Windows Windows users benefit from convenient shell integration.
Download the installer executable from the official EPANET Inptools portal. Run the setup wizard to register the file extensions.
Right-click any .inp file in Windows Explorer to open the Inptools context menu and run conversions instantly. On Linux (Ubuntu)
For Linux environments, the software can be added and installed directly via a Personal Package Archive (PPA) using the terminal:
sudo add-apt-repository ppa:sdteffen/ppa sudo apt-get update sudo apt-get install inptools Use code with caution. Why Do Engineers Need It?
The US EPA’s EPANET is an industry-standard engine for modeling drinking water infrastructure, but its native interface can feel rigid when passing data to modern web maps or city-wide asset management databases. Inptools serves as the automation layer. By converting network topologies into shapefiles or flat tabular text, it allows teams to automate map updates, generate localized engineering reports, and audit water quality variations without manual data entry.
If you would like to expand your workflow, what GIS platform do you currently use alongside EPANET, or are you looking to automate these file conversions using batch scripts? Download epanet-inptools-setup-2.0.12.1-1.exe (GHydraulics)
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