Delta Hydro · Tools Directory
Every tool a water engineer needs, indexed and searchable.
165 hand-curated listings across hydrology, hydraulics, stormwater, groundwater and GIS — with licensing, standards and regional guidance for every one. No accounts, no noise.
165 tools indexed
9 disciplines
13 delivery mediums
60 curated topics
Browse by discipline
Nine categories, whole-of-practice coverage
Hydrology & Catchment Analysis
Rainfall-runoff, catchment delineation, flood estimation and hydrological modelling.
Hydraulics & River Systems
1D/2D river modelling, open-channel hydraulics, structures and flood propagation.
Urban Stormwater & Infrastructure
Drainage networks, detention, SuDS/LID design and municipal stormwater modelling.
Water Distribution & Quality
Pressurised network modelling, EPANET tooling, transients and drinking-water quality.
Groundwater & Hydrogeology
MODFLOW and friends: aquifer simulation, contaminant transport and well hydraulics.
Geospatial & Hydro-GIS
DEM processing, watershed delineation, QGIS/ArcGIS plugins and spatial hydrology.
Water Quality & Environmental
Surface-water quality, ecological response, sediment and environmental compliance.
Data, Monitoring & Forecasting
Hydrological data access, sensor networks, telemetry and operational forecasting.
Climate & Change Analysis
Climate projections, downscaling, non-stationarity and change-impact assessment.
Curated collections
Starting points we actually recommend
6 tools
FOSS Python Tools for Flood Modelling
Open-source Python packages that cover the flood workflow — from DEM to inundation map.
5 tools
QGIS Tools for Catchment Delineation
The free GIS stack for going from raw DEM to watershed boundary and stream network.
8 tools
Alternatives to HEC-RAS
Free and commercial hydraulic engines worth knowing when HEC-RAS is not the answer.
7 tools
The EPANET Ecosystem
The public-domain engine and everything built on it — Python, MATLAB, QGIS and the browser.
7 tools
The Modern MODFLOW Stack
Groundwater modelling entirely on free software — MODFLOW 6, FloPy, PEST++ and friends.
7 tools
The Free Drainage Engineer's Toolkit
Zero-budget, reviewer-accepted tools for everyday stormwater and drainage design.
Community
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