Industry-leading hydraulic modelling software for flood, urban drainage, estuarine and coastal assessments. Setting the benchmark for accuracy, speed, and workflow efficiency for the past 30 years.

Contact Us


For general information and enquiries, please contact info@tuflow.com


For sales or licensing, please contact sales@tuflow.com


For setting up and applying TUFLOW, please contact support@tuflow.com


For training enquiries, please contact training@tuflow.com


TUFLOW is a suite of advanced 1D/2D/3D computer simulation software for flooding, urban drainage, coastal hydraulics, sediment transport, particle tracking and water quality. With over 30 years of continuous development, TUFLOW is internationally recognised as the industry leader for hydraulic modelling accuracy, speed and workflow efficiency.

A key reason for TUFLOW's success is our support team of software developers and experienced modellers. They are renowned for their prompt, practical, helpful advice so that you can achieve your modelling objectives, and produce reliable, defendable solutions. We're here to help you solve your water modelling problems.

TUFLOW Products


TUFLOW caters for all forms of free-surface and pipe network hydraulic modelling from complex 1D networks to 2D grid or quadtree meshes to 2D/3D flexible meshes. A full range of add-on modules are available to enhance TUFLOW's powerful core engines, including GPU acceleration, sediment transport, particle tracking and water quality simulation. Visit this products page for an overview and links to more information.

1D Solver

TUFLOW's 1D solver, often referred to as ESTRY, is the unsung hero of TUFLOW's success. With similar or more features than industry peers, the 1D solver supports all the functionality needed for detailed 1D modelling of: rivers and floodplains; a wide range of structures with dynamically adjusted energy losses; complex pipe networks including industry leading manhole loss algorithms; and logic driven operational structures.

2D Grid/Quadtree Mesh

TUFLOW's 2D Grid/Quadtree hydraulic modelling software leads the industry in accuracy, speed and workflow efficiency. In combination with TUFLOW's excellent 1D solver and best-in-class 1D/2D linking, TUFLOW 2D Grid/Quadtree is the preferred choice for simulating flooding, urban drainage with complex pipe networks, catchment hydrology, dam break, and storm tide or tsunami inundation.

2D/3D Flexible Mesh

TUFLOW's 2D/3D flexible mesh solver TUFLOW FV now leads the way for accuracy, speed and workflow efficiency in simulating estuarine, lake and coastal hydraulics, tsunami and storm tide propagation, advection/dispersion, sediment transport/morphology, water quality, and aquatic ecology processes.

GIS Plugins

TUFLOW models can be developed in a range of GIS software with free plugins available for ArcGIS/ArcPro, MapInfo and QGIS. The plugins greatly improve the efficiency of setting up models, reviewing results and production of maps and report quality charts. Choose the GIS development environment(s) that suits your preferences, needs, and budget, whilst utilising TUFLOW's powerful and easy to use scripting to make your modelling efficient and rewarding.

Graphical User Interfaces

TUFLOW models can be developed within a range of Graphical User Interfaces (GUI) developed by our software partners: 12D Solutions, Flood Modeller Pro, GIS Mesher, SMS and Innovyze's XP-Solutions. These GUI options offer customised model development environments to suit your preferred style of operation and workflow. The 1D solvers offered by 12D, Flood Modeller and XP-Solutions are dynamically linked to TUFLOW's Fixed Grid/Quadtree 2D software.

Add-On Modules

Build on TUFLOW's core hydraulic engines with a range of optional add-on modules to create multi-use environmental models. Modules include: GPU acceleration; quadtree mesh refinement; 3D layering; advection-dispersion; sediment transport and morphology; particle tracking; water quality; and SWAN wave integration.

Free Models

A large range of models are downloadable and can be run licence-free to support familiarisation with TUFLOW. The tutorial models come with step-by-step guidance on how to set up and apply TUFLOW, whilst demo models are provided to showcase how to apply specialised features - it's so much easier working from an example model than starting with a blank screen!

TUFLOW Library

TUFLOW products are documented in detail via their user-acclaimed manuals and the Wikis. This provides access to thousands of modelling guidelines, tips, tricks, self-teach licence free model tutorials and much more. These user resources are further supported by a library of webinars, articles, publications and presentations. Visit the TUFLOW Library to access these valuable resources.


An extreme value analysis package for calculating the probability of flood flows based on historic gauge records developed by the University of Newcastle. Flike is compliant with the recent 2019 revision of the Australian industry guideline for flood estimation, "Australian Rainfall and Runoff (ARR)". TUFLOW provides a purchase and licensing service for the Flike software.

TUFLOW Applications

TUFLOW is the industry leader in benchmarked, accurate computer simulation software for a diverse range of applications: flooding assessments; infrastructure design and optimisation; dam break assessment; urban drainage;  emergency response planning; coastal hydraulics; sediment transport; coastal, estuarine and freshwater receiving water quality assessments and much more.

Explore the many different ways TUFLOW can be applied to help solve your real-world problems.



No Limit to Model Sizes

All licences are unlimited. There is no restriction on the number of 1D channels, pipes, structures, 2D elements or 3D layers.


Build models in the GIS or GUI development environments you’re most comfortable using.

Unrivaled Functionality

Take advantage of the unparalleled range of model build tools and event management features. Run thousands of scenarios and events from the one file.


TUFLOW grid and flexible mesh solvers, and the unrivalled 1D/2D linking functionality, are industry leaders for numerical stability.


Model with confidence. Developed over 30 years, TUFLOW solvers are industry leaders solving all the physical terms using non-diffusive numerical schemes.


Benefit from using the fastest CPU and GPU solvers available without compromising accuracy!

Training and Events

Learn how to use TUFLOW by attending our training courses and workshops:

  • Online and in-person; introductory and advanced
  • New release workshops
  • Educational webinars
  • Biennial UK/Europe TUFLOW Conference
  • Industry conference presentations and workshops
  • Customised training in-house that is tailored-made to suit your needs

All TUFLOW trainers and presenters are either members of the TUFLOW software development team or an expert modeller who works with the development team on a daily basis.


Our acclaimed support services are available in a variety of forms.

  • Direct email support with the developers and highly experienced modellers
  • Search the thousands of TUFLOW Wiki pages for user tips, tricks, tutorials, troubleshooting messages and everything TUFLOW
  • Connect with others in the TUFLOW community by posting and answer questions in the User Forums
  • Step through on-line videos that guide you through TUFLOW modelling tasks
  • Familiarise yourself with the details via the highly regarded user manuals
  • Tap into the wealth of information in the TUFLOW Library from technical publications to webinars

Pricing - Perpetual to Cloud

TUFLOW has a wide range of licencing flexibility to suit everyone from students to global corporations.

  • Free or demo mode that allows users to self-train, create and commercially apply small models with full access to our acclaimed support services at no cost. 
  • Local or network configurations available.
  • Host licences on a transferable USB key, software lock, or your organisation's Cloud.
  • Value add or turbo-charge your modelling with add-on modules that suit your modelling needs and objectives.
  • Buy licences outright, purchase an annual subscription, run simulations on the Cloud, or rent on a monthly basis.
  • No limitations on licensing across offices, regions or countries.
  • Unlimited number of 1D/2D/3D elements - create the models you really need without constraints. 

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