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.


For fans looking to commemorate these milestones, various items are available:
Published in December 2023, this chapter serves as the grand finale for the manga's adaptation of the Dragon Ball Super: Super Hero movie.
: Before Kale's rampage, Goku mentors Caulifla in battle, helping her achieve Super Saiyan 2.
Released in July 2017, this episode is a pivotal moment in the Tournament of Power .
: The chaos is halted when Jiren of Universe 11 easily knocks the rampaging Kale out of her transformation with a single "Power Impact," setting the stage for his eventual showdown with Goku. Dragon Ball Super Manga Chapter 100
: Fans widely praised the detailed artwork by Toyotarou throughout this milestone chapter.
The search for relates to two distinct areas within the franchise: the landmark 100th episode of the Dragon Ball Super anime and the 100th chapter of the Dragon Ball Super manga, which concludes the Super Hero arc.
: The episode focuses on the Universe 6 Saiyan, Kale, who transforms into a Super Saiyan Berserker form—a direct homage to the original Broly.
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
Floating shared license
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.
For fans looking to commemorate these milestones, various items are available:
Published in December 2023, this chapter serves as the grand finale for the manga's adaptation of the Dragon Ball Super: Super Hero movie.
: Before Kale's rampage, Goku mentors Caulifla in battle, helping her achieve Super Saiyan 2.
Released in July 2017, this episode is a pivotal moment in the Tournament of Power .
: The chaos is halted when Jiren of Universe 11 easily knocks the rampaging Kale out of her transformation with a single "Power Impact," setting the stage for his eventual showdown with Goku. Dragon Ball Super Manga Chapter 100
: Fans widely praised the detailed artwork by Toyotarou throughout this milestone chapter.
The search for relates to two distinct areas within the franchise: the landmark 100th episode of the Dragon Ball Super anime and the 100th chapter of the Dragon Ball Super manga, which concludes the Super Hero arc.
: The episode focuses on the Universe 6 Saiyan, Kale, who transforms into a Super Saiyan Berserker form—a direct homage to the original Broly.
Simple, quick, and useful right out of the gate — designed to open-and-go.
Launch epanet-js now