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 the console instantly flags your save with the "Cheated cookies taste awful" achievement (a permanent shadow achievement). Some hardcore save editors avoid this by editing the save file offline to bypass the live anti-cheat hook. The raw text edit in Part 4 does not trigger the cheat achievement if done correctly.
: Go to the Options menu in Cookie Clicker and click Export Save . Copy the long string provided. cookie clicker save edit
Cookie Clicker is the quintessential idle game. It is a journey of patience, strategy, and numbers that eventually become so large they defy scientific notation. But for some players, the grind to unlock every Heavenly Chip or purchase every Grandmapocalypse upgrade isn't about patience—it's about data manipulation. Using the console instantly flags your save with
He opened the achievement log. Under "Shadow Achievements," greyed out and secret, was a single entry he had never seen before: : Go to the Options menu in Cookie
You will see entries like:
While save editing can be fun for "testing" the limits of the game, it often removes the primary satisfaction of Cookie Clicker: the sense of incremental progression. Additionally, using cheats or save edits will award you the shadow achievement, which serves as a permanent mark on your save file that you bypassed the intended mechanics.
In the world of , the journey from clicking a single cookie to producing octillions per second is a long, arduous grind . While the "legit" path is rewarding, many players eventually want to experiment with the game's limits or recover a lost save file. This is where a Cookie Clicker save edit becomes an essential tool in your baking arsenal.
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
Floating shared 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