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 SSE/AE, this is generally not needed (use SSE Engine Fixes instead), but for Classic, this is essential.
If it works, your main profile has deep-seated corruption. You can either rebuild your modlist or selectively import mods from the old profile while excluding anything that touches SKSE plugins.
Navigate to your Skyrim installation folder (e.g., Steam\steamapps\common\Skyrim Special Edition ). Run the game directly by double-clicking .
: The 0.0.0.0 error can also trigger if the .pex script files included with SKSE weren't copied into your Data/Scripts folder.
If the error continues, here are some deeper troubleshooting steps.
You must download the exact SKSE version matching your game build. Go to the official Silverlock SKSE site.
: Windows protection can interfere with SKSE if Skyrim is installed in C:\Program Files (x86) . Moving your Steam library to a different drive or folder often resolves persistent detection errors.
If you're on Windows 11 and have OneDrive active, it may be the hidden cause.
: Right-click skse64_loader.exe and select Run as Administrator to bypass Windows permission issues that can block the script extender.
Then download the matching SKSE from skse.silverlock.org :
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
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.
For SSE/AE, this is generally not needed (use SSE Engine Fixes instead), but for Classic, this is essential.
If it works, your main profile has deep-seated corruption. You can either rebuild your modlist or selectively import mods from the old profile while excluding anything that touches SKSE plugins.
Navigate to your Skyrim installation folder (e.g., Steam\steamapps\common\Skyrim Special Edition ). Run the game directly by double-clicking . skyrim racemenu error you are running skse version 0000 link
: The 0.0.0.0 error can also trigger if the .pex script files included with SKSE weren't copied into your Data/Scripts folder.
If the error continues, here are some deeper troubleshooting steps. For SSE/AE, this is generally not needed (use
You must download the exact SKSE version matching your game build. Go to the official Silverlock SKSE site.
: Windows protection can interfere with SKSE if Skyrim is installed in C:\Program Files (x86) . Moving your Steam library to a different drive or folder often resolves persistent detection errors. Navigate to your Skyrim installation folder (e
If you're on Windows 11 and have OneDrive active, it may be the hidden cause.
: Right-click skse64_loader.exe and select Run as Administrator to bypass Windows permission issues that can block the script extender.
Then download the matching SKSE from skse.silverlock.org :
Simple, quick, and useful right out of the gate — designed to open-and-go.
Launch epanet-js now