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.


Updated the crash reporting dialog with direct links to TechSmith Support .
: Seamless synchronization with TechSmith Audiate for text-based audio editing, where deleting a word in the transcript automatically ripples the edit to the Camtasia timeline.
TechSmith Camtasia 2022.0.3 was a maintenance update released for the Camtasia 2022 suite, focusing on stability and user experience improvements for the Windows and Mac platforms.
Users on the 2022 version are encouraged to update to the most recent patch via the Check for Updates tool in the Help menu to ensure the latest bug fixes and compatibility patches are applied. Camtasia 2022 | NEW Features Reveal
This version addressed several critical stability issues reported in early 2022 builds:
: Added over 30 new GPU-accelerated transitions and Blend Modes to create cinematic effects like overlaying smoke or textures onto footage. Upgrade Recommendation
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.
Updated the crash reporting dialog with direct links to TechSmith Support .
: Seamless synchronization with TechSmith Audiate for text-based audio editing, where deleting a word in the transcript automatically ripples the edit to the Camtasia timeline.
TechSmith Camtasia 2022.0.3 was a maintenance update released for the Camtasia 2022 suite, focusing on stability and user experience improvements for the Windows and Mac platforms.
Users on the 2022 version are encouraged to update to the most recent patch via the Check for Updates tool in the Help menu to ensure the latest bug fixes and compatibility patches are applied. Camtasia 2022 | NEW Features Reveal
This version addressed several critical stability issues reported in early 2022 builds:
: Added over 30 new GPU-accelerated transitions and Blend Modes to create cinematic effects like overlaying smoke or textures onto footage. Upgrade Recommendation
Simple, quick, and useful right out of the gate — designed to open-and-go.
Launch epanet-js now