FreelyWat

FreelyWat is an open‑source platform designed to streamline the monitoring, analysis, and management of water resources. The project was launched in 2023 by a consortium of environmental scientists, civil engineers, and software developers headquartered in Copenhagen. Its core mission is to provide municipalities, research institutions, and non‑profit organizations with a low‑cost, adaptable tool for real‑time water quality and usage monitoring.

The software stack is built on Python 3 and leverages the Flask micro‑framework for its web interface. Data ingestion is handled through a modular plug‑in architecture that supports a range of IoT sensors, satellite feeds, and legacy SCADA systems. FreelyWat includes a set of analytical modules that can calculate parameters such as turbidity, pH, dissolved oxygen, and flow rate, as well as predictive models based on machine learning algorithms. Results are visualized on interactive dashboards that can be embedded into existing management portals.

FreelyWat is distributed under the GNU Lesser General Public License version 3, which encourages contribution and redistribution. Since its initial release, the platform has been adopted by over 50 municipalities across Europe and has been cited in several peer‑reviewed studies on urban water sustainability. The community around FreelyWat maintains an online forum, a bi‑annual hackathon, and a dedicated issue tracker on GitHub. The project’s documentation, inclusive of installation guides, API references, and best‑practice case studies, is available in both English and German.