Introducing epanet-js

In this recorded webinar from October 1st 2025, you’ll hear the full story behind epanet-js, see it in action, and get a glimpse of what’s coming next. For years, hydraulic modeling has been defined by powerful but often complex, desktop-bound, and expensive software. But what if there was a better way? What if the core tools of our industry were free, open-source, and accessible to anyone, anywhere, right from a web browser? In this one-hour recorded webinar, Sam and Luke, the creators of epanet-js, introduce you to the future of water modeling. You’ll see: - The “Why” Behind epanet-js: The origin story and mission to create a free and open-source alternative for the water industry. - Live Demo – From GIS to Model in Minutes: Watch as a network is built from scratch, GIS data imported, and the new customer points feature used to allocate demands in real-time. - A Glimpse into the Future: An exclusive preview of the development roadmap and the exciting new capabilities in the works. - Direct Q&A with the Creators: Questions from attendees answered live, with feedback that helps shape the tool’s future. Your Hosts: Luke Butler & Sam Paya, Co-founders of epanet-js Chapters: 00:00 Intro 03:10 About us 05:53 Hydraulic modeling in 2025 10:30 Demo of epanet-js 21:00 Public launch 23:25 Local first 25:25 Open source 28:00 Pricing 31:03 Roadmap 33:49 Q&A 34:21 Q&A - Elevation base 35:55 Q&A - Scenario options 36:51 Q&A - Data ownership & security 37:41 Q&A - Porting EPANET to browser 39:00 Q&A - EPANET version in use 39:42 Q&A - Documentation 41:04 Q&A - Pump curve 42:08 Q&A - Profiles (HGL, pressure, velocity) 43:06 Q&A - Import/export EPANET models 44:07 Q&A - Fire flow analysis 45:23 Q&A - Advice for young developers 46:00 Q&A - Offset node elevations 46:58 Q&A - Supported GIS formats 48:15 Q&A - Track connectivity function 49:06 Q&A - Browser compatibility 50:08 Q&A - Steady only? 51:08 Q&A - Asset limits 53:00 Q&A - Graphing pressure/flow 53:34 Q&A - Scenario comparison & PDD 54:01 Q&A - Future plans for SWMM 55:11 Q&A - Attribute table editing 56:50 Q&A - Friction loss methods 57:23 Q&A - EPANET use in Canada