epanet-js
No installs. No forced cloud storage. Just fast, local-first water modeling — powered by the engine you already trust.
You shouldn't have to choose between speed, security, and affordability just to understand your water networks.


CSI provides fully functional trial versions (usually 30 days) of current ETABS releases. Visit (or regional CSI site) to request a trial.
Despite its technical depth, ETABS is recognized for being relatively easy to learn compared to other structural software. Its graphic environment facilitates model generation and immediate visualization of results, such as analytical time periods and mass participation ratios. For students and professionals, gaining proficiency in this software—often validated through certification—is a major asset in the design and construction industry. Conclusion
The Evolution of Structural Design: Understanding ETABS in the Modern Era
Do search for "etabs 9.7.4 portable download" – these files on torrent sites, file-sharing forums, or blogspot links are illegal and dangerous. Instead, contact CSI or an authorized reseller. If cost is a barrier, look into open-source structural analysis alternatives like OpenSees , Frame3DD , or CalculiX (though they lack ETABS's building-specific workflow).
: Advanced users can import specific ground motion data to simulate real-world earthquake scenarios, providing a high degree of precision in safety testing. Accessibility and Learning
No setup or downloads — just instant access right in your browser.
EPANET was a gift to the industry — free, open-source water modeling for all. But commercial vendors built on it, locked away improvements, and left the community behind.
epanet-js is our answer: a faster, simpler, affordable water modeling tool that protects your privacy and sustains the open-source future of water modeling.
We're proud to be part of the next chapter — and we're just getting started.

When you purchase more features in epanet-js, you're investing in the future of open-source EPANET development.
Our open-source model balances innovation and accessibility:
Anyone can build on our code. The two-year commercial-use delay gives us the incentive to keep pushing forward — and that fuels progress for everyone.
That means when you support us, you support more affordable hydraulic modeling software for the entire community.
Choose the plan that works for you
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Available for non-commercial projects, learning, and student work.
For curious minds and personal growth.
Free for students and teachers.
Find answers to common questions about epanet-js.
No install. No login. No cloud required.
CSI provides fully functional trial versions (usually 30 days) of current ETABS releases. Visit (or regional CSI site) to request a trial.
Despite its technical depth, ETABS is recognized for being relatively easy to learn compared to other structural software. Its graphic environment facilitates model generation and immediate visualization of results, such as analytical time periods and mass participation ratios. For students and professionals, gaining proficiency in this software—often validated through certification—is a major asset in the design and construction industry. Conclusion etabs 97 4 portable download
The Evolution of Structural Design: Understanding ETABS in the Modern Era CSI provides fully functional trial versions (usually 30
Do search for "etabs 9.7.4 portable download" – these files on torrent sites, file-sharing forums, or blogspot links are illegal and dangerous. Instead, contact CSI or an authorized reseller. If cost is a barrier, look into open-source structural analysis alternatives like OpenSees , Frame3DD , or CalculiX (though they lack ETABS's building-specific workflow). Instead, contact CSI or an authorized reseller
: Advanced users can import specific ground motion data to simulate real-world earthquake scenarios, providing a high degree of precision in safety testing. Accessibility and Learning
Simple, quick, and useful right out of the gate — designed to open-and-go.
Launch epanet-js now