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.


: Using browser-based VPNs like Hotspot Shield or SetupVPN can encrypt your traffic and bypass local filters.
A VPN is the most robust solution for unblocking websites. It establishes an encrypted tunnel between your device and a secure server, hiding your online activity from the local network filter entirely.
Is the network using a or a completely restricted app store ? Do you need to save your custom teams , or
A Pokémon Showdown unblocked link is a URL that allows users to access the platform despite restrictions. These links often utilize proxy servers or VPNs (Virtual Private Networks) to bypass firewalls and access the platform. pokemon showdown unblocked link
Strict filters automatically restrict unverified chat rooms and community hubs. How to Find a Pokémon Showdown Unblocked Link
Free unblocked game hubs are often heavily monetized with aggressive pop-ups, drive-by downloads, or fake "Update Flash Player" prompts. Never click on pop-ups or download executable (.exe) files.
Many users host clones of the simulator on GitHub pages, which are rarely blocked by schools. : Using browser-based VPNs like Hotspot Shield or
Which or screen do you see when the site fails to load?
: To report another user for rule-breaking, use the /report command within the battle or chat.
Playing at school or work can be a great way to de-stress, but keep an eye on your surroundings. Most "unblocked" mirrors are just redirects, so if your IT department is strict, they might eventually see the traffic. Is the network using a or a completely restricted app store
: Using a browser extension or a VPN service can mask your traffic, allowing you to reach the site. However, be aware that Pokémon Showdown frequently Proxy Locks these connections to prevent spam, which may prevent you from chatting. Browser-Based Workarounds :
This is a classic trick for unblocking almost any website. Network filters usually allow Google Translate because it is considered an educational tool.
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
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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.
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