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Card 226 of 9832026-09-12 issue

Observed arrival · 2026-09-12

LibreWaterNet: water-network modelling in the browser

epanetpp.org Observed source
Editorial interest 84/100 Selection signal · not a rating of the site

An open, community-owned tool for drawing, solving, and exchanging water-network models without an account.

Landing page captured for the 2026-09-12 issue.

Field notes

LibreWaterNet uses the EPANET engine to model pipe networks drawn on a map, with support for importing and exporting EPANET files. The homepage lists fire-flow and pump-energy calculations, scenarios, tables, and a profile view, and identifies an example called EPA’s Net3 with 92 junctions. It also states that the interface is available in 27 languages and is released under GPL v3+. The project is soliciting bug reports, wish lists, and governance advice while its nonprofit structure remains undecided.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
◉HumanPersonal, local, civic, or handmade

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epanetpp.org

Landing page observed 2026-09-12. The live site may have changed.