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Best Groundwater Modeling Software in 2026

Groundwater modeling software supports work such as flow and transport modeling. This list is for people comparing tools by modeling approach, dimensions, data exchange, and platform support.

  1. 1

    FREEWAT

    Free plan LinuxWindows
    6.3 Free plan Visit site
  2. 2

    MODFLOW 6

    Free plan APILinuxMac+2
    6.3 Free plan Visit site
  3. 3

    ModelMuse

    Free plan Windows
    6.0 Free plan Visit site
  4. 4

    MOC3D

    Free plan LinuxWindows
    5.9 Free plan Visit site
  5. 5

    MT3DMS

    Free plan LinuxWindows
    5.8 Free plan Visit site
  6. 6

    MODFLOW-USG

    Free plan
    5.7 Free plan Visit site
  7. 7

    MT3D-USGS

    Free plan LinuxWindows
    5.7 Free plan Visit site
  8. 8

    MODPATH

    Free plan
    5.6 Free plan Visit site
  9. 9

    SUTRA

    Free plan Windows
    5.5 Free plan Visit site
  10. 10

    Watershed Modeling System (WMS)

    Free plan Windows
    5.4 Free plan · paid from $3,990 Visit site
  11. 11

    PFLOTRAN

    Free plan LinuxSelf-hosted
    3.9 Open source Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

Check whether a tool lists a free plan or an open-source licence before choosing. Review paid starting prices, flow and transport methods, surface-water coupling, GIS exchange, model dimensions, and support for Windows, Linux, or macOS.

Questions

Which groundwater modeling tools have a free plan?

A free plan is listed for FREEWAT, MOC3D, ModelMuse, MODFLOW 6, MODFLOW-USG, MODPATH, MT3DMS, MT3D-USGS, and SUTRA.

Is any tool listed as open source?

PFLOTRAN has an open-source pricing note and is listed for Linux.

Does a tool support Linux?

Platform support varies. Linux is listed among the supported platforms, and PFLOTRAN is specifically listed for Linux.

What paid starting price is shown?

Watershed Modeling System (WMS) shows a free plan with paid access starting at $3,990.

What should I compare besides price?

Look at flow and transport methods, surface-water coupling, model dimensions, GIS data exchange, and supported platforms.

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