Applications – Edesma GeoLab

QGIS Layer Viewer

QGIS Layer Viewer is a lightweight, serverless web map viewer that reads QGIS Layer Definition files (.qlr) and GeoJSON data directly in the browser, rendering them on an OpenLayers map with styling that closely matches the original QGIS project — including categorized and graduated symbology, dash patterns, glow effects, SVG markers, labels, and map tips.

No backend, no server-side processing, no upload to any cloud service. Files are read locally or fetched from a URL. Everything runs in the browser. Deploy by copying two files to any static web server.

A Bridge Between QGIS and the Web, Built with AI and GIS Expertise

Several years ago, I built my first interactive GIS web applications in ActionScript, when Flex still competed on equal footing with other technologies for building rich web applications — comparable to desktop apps — including GIS viewers. Later, I migrated to OpenLayers and the HTML/JS ecosystem.

Now, having retired, I have decided to dedicate my time to humanitarian and community initiatives, supporting the development of open data and non-profit GIS tools.