https://video.osgeo.org/videos/watch/a9c7b184-d1e4-49b4-843f-321273202362 Highlights 🌐 Courtney and George compare four open-source web mapping libraries in a shootout, covering strengths, weaknesses, and unique features. 🚀 The presentation includes a high-level comparison, performance analysis, and conclusions. 👥 Courtney is a developer advocate at Esri, while George is a product engineer at Esri, both emphasizing open source. Library Comparisons: 🗺️ Mapping Support: All libraries support 2D maps, with MapLibre and Cesium also supporting 2.5D and 3D maps. 📊 Data and Layer Support: WebGL is fully supported by MapLibre and Cesium. Various data types are supported, with Leaflet having the smallest file size. 🎨 Styling Data: Vector tiles are fully supported by MapLibre and Cesium, while Leaflet and OpenLayers offer partial support. 📦 Library File Sizes: Leaflet is the lightest, followed by MapLibre and OpenLayers, with Cesium being larger due to its 3D capabilities. 👥 Community Involvement: Leaflet is the most active library, but all have active communities, providing support on platforms like Stack Overflow and GitHub. Performance Analysis: 🕐 Library Load Times: Leaflet has the fastest load time, with MapLibre and OpenLayers closely following. 🗺️ Base Maps: Performance analysis includes raster and vector tile base maps, map tiles, and GeoJSON data types. ⚙️ Methodology: Tests conducted using Puppeteer JS and Lighthouse on a laptop, acknowledging the non-lab conditions. 📊 Results: Performance graphs show the total time in milliseconds for library load times, with Leaflet being the fastest. Video Tags: #FOSS4GNA #OpenSource #MappingLibrary #WebDevelopment #PerformanceAnalysis #Esri #Leaflet #MapLibre #Cesium #OpenLayers #WebGL #VectorTiles #GeoJSON #CommunityInvolvement #WebMapping #LibraryShootout Sun, 23 Aug 2026 19:20:01 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://video.osgeo.org https://video.osgeo.org/lazy-static/avatars/de841c88-3a57-45ac-9eff-a00237356bfc.png https://video.osgeo.org/videos/watch/a9c7b184-d1e4-49b4-843f-321273202362 All rights reserved, unless otherwise specified in the terms specified at https://video.osgeo.org/about and potential licenses granted by each content's rightholder.