SFINCS – Super-Fast INundation of CoastS
SFINCS stands for Super-Fast INundation of CoastS and is a fast open-source flood model developed at Deltares. It enables rapid simulation of storm surge (coastal), riverine (fluvial) flooding, rainfall-runoff (pluvial), and wave-driven flooding at regional to local scales. Designed to run in minutes instead of days, SFINCS supports scenario testing, operational forecasting, and climate adaptation planning worldwide.
Go directly to
Why choose SFINCS?
- Speed – Run large-area flood simulations in minutes, not days.
- Compound Flooding – Simulates coastal, riverine, rainfall-driven, and wave-driven flooding together.
- Ease & Accessibility – Straightforward model setup; interoperable with Deltares tools such as Delft-FEWS, HydroMT, and FloodAdapt.
- Open Source – Freely available under the GNU GPL v3.0 license. Download, compile, and use without license fees
- Credibility – Backed by Deltares and applied in projects across the US, Europe, Australia, and developing regions.
You have not yet indicated whether you want to accept or reject cookies. This means that this element cannot be displayed.
Or go directly to:
Video: Case-study in Hernani, Typhoon Haiyan 2013.
Open-source and free to use
SFINCS is released as open-source software under the GNU GPL v3.0 license. This means SFINCS is free of charge to download, use, and modify.
- You can access the source code on GitHub and compile it yourself.
- Pre-compiled executables for Windows are available via the Deltares software portal under a freeware license.
Professional support and collaboration
While SFINCS is open-source, Deltares provides professional services to ensure you get the most out of the software:
- Technical support and training through SFINCS Service Packages (see below).
- Collaboration on research proposals with universities and institutes worldwide.
- Consultancy partnerships with governments and engineering firms to apply SFINCS in projects and operational systems.
SFINCS Service Packages
Deltares offers structured support packages tailored to different needs, similar to Delft3D.
SFINCS Basic Service Package
- Access to the latest validated executables and updates.
- Up to 8 hours of expert support per year (installation, troubleshooting, setup guidance).
- Standard response time (within 2 business days).
- Initial “getting started” consultation for your first model.
Price: € 3200
SFINCS Advanced Service Package
- All benefits of Basic, plus:
- 24+ hours of expert support per year.
- Priority response (within 1 business day).
- Dedicated contact at Deltares.
- Assistance with model setup, integration, and advanced configurations.
- Option for customized builds (e.g., HPC/Linux).
- Annual check-in to review use and share new developments.
Price: € 6500
For pricing and details, please contact software@deltares.nl
Training and community
- Deltares organises SFINCS training courses annually during the Deltares Software Days and on request worldwide. Deltares USA provides dedicated training for North America.
- Customised SFINCS training can be arranged for your organisation. Contact software@deltares.nl
- The SFINCS documentation offers detailed instructions on installation, usage, and contributing.
- Join the open-source community by contributing via GitHub.
You have not yet indicated whether you want to accept or reject cookies. This means that this element cannot be displayed.
Or go directly to:
Video: Case-study in Asheville, 2024 floods.
Copyright and Citation
SFINCS is developed and maintained by Deltares and released under the GNU GPL v3.0 license.
When using SFINCS in publications or reports, please acknowledge Deltares and cite the following reference:
- Leijnse, T., van Ormondt, M., Nederhoff, C.M., van Dongeren, A. (2021). Modeling compound flooding in coastal systems using a computationally efficient reduced-physics solver: Including fluvial, pluvial, tidal, wind- and wave-driven processes. Coastal Engineering, 165, 103852.
Contact
Interested in learning more, getting support, or partnering with us? Reach out directly to software@deltares.nl for service packages or contact our SFINCS team at sfincs@deltares.nl.
