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Best XPSWMM Alternatives ranked by AI · updated Aug 2026

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XPSWMM is a commercial stormwater and wastewater modeling package for rainfall-runoff, pipe networks, storage, controls, and flooding. It serves consultants and infrastructure agencies that need a graphical model-building environment with advanced hydraulic and 2D capabilities.

Developer: Innovyze, an Autodesk company Price: N/A 🎯 autodesk.com/products/xpswmm/overview
hydraulic modeling hydrology drainage stormwater modeling

Top 6 XPSWMM alternatives

1 Storm Water Management Model logo

Storm Water Management Model

U.S. Environmental Protection Agency

Storm Water Management Model is a dynamic rainfall-runoff and hydraulic simulation tool for urban drainage, stormwater, and combined sewer systems. It is...

Pros

  • Free and widely accepted for academic, consulting, and regulatory work
  • Supports detailed urban runoff, conveyance, storage, pumps, and control modeling
  • Open file format and extensive third-party ecosystem

Cons

  • Less polished graphical workflow than commercial tools such as InfoWorks ICM
  • Requires more manual setup and model checking than PCSWMM
  • Limited integrated GIS, asset management, and collaboration features

Free

Alternatives to Storm Water Manage... → Visit site
2

HEC-HMS

HEC-HMS is a hydrologic modeling software also developed by the U.S. Army Corps of Engineers.

Pros

  • Integrates well with HEC-RAS
  • Good for watershed modeling

Cons

  • Less focused on hydraulic modeling
  • Requires separate software for detailed hydraulics

Free

Alternatives to HEC-HMS →
3

InfoWorks ICM

Autodesk

InfoWorks ICM is an integrated catchment and drainage modeling platform for wastewater, stormwater, rivers, and surface-water systems. It is designed for utilities,...

Pros

  • Strong combined sewer, stormwater, river, and flood modeling
  • Advanced 1D and 2D simulation capabilities
  • Supports large, complex catchment models and scenario analysis

Cons

  • More demanding to learn than simpler sewer modeling tools
  • Can require substantial computing resources for detailed 2D models
  • Focused on hydraulic modeling rather than full utility asset management

N/A

Alternatives to InfoWorks ICM → Visit site
4

MIKE+

DHI

MIKE+ is an urban water modeling platform for water distribution, wastewater collection, stormwater, rivers, and urban flooding. It serves utilities, consultants, and...

Pros

  • Covers water, wastewater, stormwater, and urban flooding in one platform
  • Strong integrated catchment and network modeling
  • Supports detailed 1D and 2D hydraulic analysis

Cons

  • Broad functionality creates a steeper learning curve
  • Commercial licensing and training can be expensive
  • May be more platform than a small utility needs

N/A

Alternatives to MIKE+ → Visit site
5

PCSWMM

Computational Hydraulics International

PCSWMM is a commercial interface and modeling environment built around EPA SWMM for urban drainage and stormwater analysis. It is designed for...

Pros

  • Adds a more capable GIS and workflow environment to the EPA SWMM engine
  • Strong calibration, sensitivity, reporting, and scenario tools
  • More accessible for urban drainage teams than raw SWMM workflows

Cons

  • Focused primarily on SWMM-based drainage rather than broad hydraulic design
  • Commercial licensing costs more than EPA SWMM itself
  • Less comprehensive for river and advanced 2D flood modeling than InfoWorks ICM

Commercial, quote-based

Alternatives to PCSWMM → Visit site
6

OpenFlows SewerGEMS

Bentley Systems

OpenFlows SewerGEMS is a hydraulic modeling application for sanitary, storm, and combined sewer systems. It is intended for utilities and civil engineers...

Pros

  • Strong CAD, GIS, and infrastructure-data integration
  • Supports sewer design, capacity analysis, and operational scenarios
  • Provides a polished network editing and reporting environment

Cons

  • Commercial licensing costs much more than SWMM
  • Primarily focused on sewer networks rather than broad watershed processes
  • Less accessible for students and small independent projects

N/A

Alternatives to OpenFlows SewerGEM... → Visit site

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