Head-to-head · Groundwater Modeling Software
PFLOTRAN vs MT3D-USGS
PFLOTRAN leads on 0 checks, MT3D-USGS on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scorePFLOTRAN · 8.0/10
- Free planonly MT3D-USGS
- Most featuresMT3D-USGS · 2 of 3
PFLOTRAN scores higher on our rubric for groundwater modeling software: 8.0 against 7.5 out of 10; our editors rank them #5 and #8.
On flow modeling method, PFLOTRAN gives you Other where MT3D-USGS offers Finite-difference.
PFLOTRAN is the better fit for large-scale reactive transport and fractured media. MT3D-USGS is the better fit for 3D multispecies transport with MODFLOW workflows.
- PFLOTRAN fits best
Large-scale reactive transport and fractured media
- MT3D-USGS fits best
3D multispecies transport with MODFLOW workflows
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Side by side
| Feature | PFLOTRAN 8.0/10 Visit ↗ | MT3D-USGS 7.5/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.0 | 7.5 |
| Ranking | #5 in Groundwater Modeling Software | #8 in Groundwater Modeling Software |
| Best for | Large-scale reactive transport and fractured media | 3D multispecies transport with MODFLOW workflows |
| Pricing model | Free | Free |
| Starting price | Open source | Free plan |
| Free plan | Not checked yet | ✓ (best) |
| Free trial | — | — |
| Deployment | Self-hosted | Self-hosted |
| Platforms | Linux | Windows, Linux |
| Support | Docs | Docs |
| Built for | Small business, Mid-market, Enterprise | Small business, Mid-market, Enterprise |
| Features PFLOTRAN 1/3 · MT3D-USGS 2/3 | ||
| Transport modeling | ✓ | ✓ |
| Surface-water coupling | Not checked yet | ✓ (best) |
| GIS data exchange | Not checked yet | Not checked yet |
| Specs | ||
| Flow modeling method | Other | Finite-difference |
| Model dimensions | 3d | 3d |
| Supported platforms | Linux | Windows, Linux |
| Our review | ||
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| Cons |
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| Our verdict | PFLOTRAN is an open-source simulation code for subsurface groundwater flow and reactive transport. It is aimed at researchers and technical teams constructing numerical models of groundwater movement, dissolved chemical species, and… Read the review → |
MT3D-USGS is a U.S. Geological Survey program for three-dimensional groundwater solute-transport simulation. It models advection, dispersion, chemical reactions and multispecies transport using a finite-difference numerical solution. The… Read the review → |
Strengths and trade-offs
PFLOTRAN — where it wins
- Combines groundwater flow with reactive transport and geochemical reactions
- Parallel execution supports large-scale scientific simulations
- Models both porous and fractured subsurface media
Where it doesn't
- Linux is the only listed platform
- Self-hosted deployment requires managing the computing environment
- Documentation is the listed support channel
MT3D-USGS — where it wins
- Simulates 3D advection, dispersion, reactions and multispecies transport
- Supports MODFLOW-2005 and MODFLOW-USG workflows
- Free, open-source deployment on Windows and Linux
Where it doesn't
- Focuses on transport rather than complete groundwater-flow modeling
- Self-hosted downloadable software requires local deployment
- Support is provided through documentation channels
- PFLOTRAN8.0/10 · Open source
A parallel, open-source engine for large 3D groundwater and geochemical simulations.
Visit PFLOTRANFull verdict → - MT3D-USGS7.5/10 · Free plan
A free, open-source 3D transport simulator for MODFLOW-based workflows.
Visit MT3D-USGSFull verdict →
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Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
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