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.


As of early 2026, the streaming market has reached a milestone where in viewership share (30% each).
Indonesian films are no longer just domestic hits; they are achieving unprecedented international acclaim and commercial scale.
The Indonesian entertainment landscape in 2026 is a powerhouse of digital growth, characterized by a booming film industry and a "hyper-engaged" creator economy. Indonesia is currently the , with local productions capturing a massive 65-67% of the domestic box office share . The Rise of Indonesian Cinema
: Cinema admissions are projected to reach 100 million by the end of 2026. Major releases like Joko Anwar’s Ghost in the Cell (2026) are scheduled for screening in 86 countries .
: High-profile titles like Wregas Bhanuteja’s Levitating (Sundance 2026) and Edwin’s Sleep No More (Berlin 2026) continue to represent Indonesia on the global circuit.
: The industry is moving from "volume" to "quality," with films increasingly designed as multi-revenue assets through strategic brand partnerships and IP-based loyalty. Popular Video Streaming Platforms
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.
As of early 2026, the streaming market has reached a milestone where in viewership share (30% each).
Indonesian films are no longer just domestic hits; they are achieving unprecedented international acclaim and commercial scale.
The Indonesian entertainment landscape in 2026 is a powerhouse of digital growth, characterized by a booming film industry and a "hyper-engaged" creator economy. Indonesia is currently the , with local productions capturing a massive 65-67% of the domestic box office share . The Rise of Indonesian Cinema
: Cinema admissions are projected to reach 100 million by the end of 2026. Major releases like Joko Anwar’s Ghost in the Cell (2026) are scheduled for screening in 86 countries .
: High-profile titles like Wregas Bhanuteja’s Levitating (Sundance 2026) and Edwin’s Sleep No More (Berlin 2026) continue to represent Indonesia on the global circuit.
: The industry is moving from "volume" to "quality," with films increasingly designed as multi-revenue assets through strategic brand partnerships and IP-based loyalty. Popular Video Streaming Platforms
Simple, quick, and useful right out of the gate — designed to open-and-go.
Launch epanet-js now