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.


**iZotope Nectar assistant
Released during the golden era of "smart" audio plugins (circa 2014-2016), Nectar 2 was iZotope’s answer to the all-in-one vocal channel strip. Unlike standard EQs or compressors, Nectar 2 was designed specifically for the human voice.
The Sound of Perfection
The iZotope Nectar 2 Production Suite v2.02 is a comprehensive vocal processing toolkit designed for professional audio production. Released in late 2013, this version added specific enhancements to its 11 core processing modules and introduced additional standalone tools for macOS (OS X) and Windows. Core Components
engine [1, 3]. Suddenly, a lone voice became a lush choir, backing the chorus with perfect intervals. To finish, he added a touch of Plate Reverb and a gritty for that vintage warmth [1, 2].
High-quality reverb, delay, saturation, and compression modules. Plate Reverb:
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
Individual named license
Base cost
User
Have questions? or book a call.
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.
**iZotope Nectar assistant
Released during the golden era of "smart" audio plugins (circa 2014-2016), Nectar 2 was iZotope’s answer to the all-in-one vocal channel strip. Unlike standard EQs or compressors, Nectar 2 was designed specifically for the human voice.
The Sound of Perfection
The iZotope Nectar 2 Production Suite v2.02 is a comprehensive vocal processing toolkit designed for professional audio production. Released in late 2013, this version added specific enhancements to its 11 core processing modules and introduced additional standalone tools for macOS (OS X) and Windows. Core Components
engine [1, 3]. Suddenly, a lone voice became a lush choir, backing the chorus with perfect intervals. To finish, he added a touch of Plate Reverb and a gritty for that vintage warmth [1, 2].
High-quality reverb, delay, saturation, and compression modules. Plate Reverb:
Simple, quick, and useful right out of the gate — designed to open-and-go.
Launch epanet-js now