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.


Elements of ballroom—including runway walks, specific slang, and dance styles—have been heavily adopted by mainstream pop music, fashion, and reality television. Diverse Identities Within the Acronym
Access to gender-affirming care—including hormone replacement therapy (HRT), puberty blockers, and surgeries—is a critical component of mental health and well-being for many trans individuals. Navigating healthcare systems remains a major obstacle due to financial barriers, a lack of trained medical providers, and restrictive legislation. Systemic Marginalization
LGBTQ culture encompasses a broad range of experiences, identities, and expressions. The LGBTQ community includes: teen shemales galleries
This moment of exclusion foreshadows a tension that persists today: when LGBTQ culture tries to assimilate into mainstream society, the transgender community—particularly non-binary and working-class trans people—is often left behind.
I can help tailor the next sections to the specific angle you need! The current regarding gender recognition
The current regarding gender recognition.
Yet, despite this difference, the "T" has been firmly attached to "LGB" for nearly half a century. Why? Because the transgender community and LGB people share a common enemy: . and Spain have pioneered "self-determination" laws
. While often grouped together, the transgender community has unique experiences—particularly regarding gender identity—that differ from the orientation-based experiences of the broader LGB community. National Institutes of Health (.gov) Core Values and Cultural Elements
No discussion of the transgender community’s place in LGBTQ culture is complete without the night of June 28, 1969. The Stonewall Inn in New York’s Greenwich Village was a mafia-run bar that served the most marginalized members of the queer community: homeless gay youth, drag queens, effeminate men, butch lesbians, and transgender people. At the time, transgender people were often referred to as "transvestites" (a then-clinical, now-outdated term) and were routinely arrested for the "crime" of gender impersonation.
Transgender people experience disproportionately high rates of violence, which often go unpunished due to systemic exclusion. PubMed Central (PMC) (.gov) Internal Community Perspectives
Countries like Argentina, Malta, and Spain have pioneered "self-determination" laws, allowing citizens to change their legal gender marker without requiring psychiatric evaluations or medical interventions.
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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.
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Available for non-commercial projects, learning, and student work.
For curious minds and personal growth.
Free for students and teachers.
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No install. No login. No cloud required.
You may not know this, but for decades, the U.S. EPA has given the water industry an extraordinary gift: the free and open-source hydraulic modeling software EPANET. Odds are, if you've used any commercial hydraulic modeling software today, it was built on the EPANET engine.
The problem is, instead of giving back to their open-source roots like other industries do, big-name software vendors took EPANET's open code, built private tools on top of the engine, and then locked those improvements behind patents and proprietary licenses.
Some vendors even pressured the EPA to focus only on the engine — discouraging any effort to improve the interface or user experience for everyone else.
Those vendors now charge you exorbitant prices to use their software while EPANET lags behind — and utilities, engineers, and educators with smaller budgets suffer.
We think this is backwards — and we're on a mission to change it. We're focused on creating a better experience for the entire hydraulic modeling community.
That's why we built epanet-js under an FSL license — because we want to give you an affordable, easy-to-use water modeling option that creates a sustainable future for open-source EPANET development.
Support EPANET by using software that supports it back.
Simple, quick, and useful right out of the gate — designed to open-and-go.
Launch epanet-js now