Web mapping

Web mapping is a wonderfully broad corner of the web: part developer toolkit, part research desk, part visual playground. If you’re building maps into an app, this collection gives you strong foundations in libraries and platforms like Leaflet, OpenLayers, MapLibre, MapTiler, Felt, uMap, kepler.gl, and QGIS — from lightweight interactive maps and embeddable OpenStreetMap-based projects to full GIS workflows, geospatial dashboards, vector tile rendering, styling, analysis, sharing, and export tools. There’s a nice spread here between approachable browser-based tools and deeper developer or professional mapping stacks, so you can start with a simple custom map or move into more involved spatial data work without leaving the ecosystem entirely.

The category also has some excellent destinations for exploring the world through data, history, and imagery. overpass turbo opens a window into querying OpenStreetMap data directly; EOSDA LandViewer helps search and inspect satellite imagery; WikiShootMe connects mapped places with Wikidata and Commons photography needs; and WiGLE maps contributor-discovered wireless networks. For historical and educational browsing, the David Rumsey Historical Map Collection, Chronas, and TrueSize each offer a different way to understand place — through digitized cartography, shifting borders over time, or the way map projections distort our sense of scale. Taken together, these listings show web mapping at its best: not just maps on a screen, but tools for asking better questions about where things are, how they relate, and how places change.