javascript

CesiumJS

OSS

Open-source JavaScript library for world-class 3D globes and maps with WebGL.

Alternative to Google Earth

geotiff.js

OSS

Browser and Node.js library for parsing GeoTIFF files for visualization and analysis.

JSTS

OSS

JavaScript port of the JTS topology suite for 2D spatial predicates and operations.

Leaflet

OSS

Leading open-source JavaScript library for mobile-friendly interactive maps. Simple and lightweight.

Alternative to Google Maps Platform, Bing Maps, Mapbox

Leaflet-Geoman

OSS

Leaflet plugin for drawing, editing, measuring, and managing geometry layers.

Mapbox GL Draw

OSS

Drawing tools plugin for MapLibre/Mapbox GL maps — points, lines, polygons.

MapLibre GL JS

OSS

Open-source TypeScript library for publishing maps on your website. Fast vector tile rendering.

Alternative to Mapbox, Google Maps Platform, Bing Maps

MapLibre-Geoman

OSS

MapLibre plugin for drawing, measuring, and editing geometry layers in web maps.

mapshaper

OSS

Editor for Shapefile, GeoJSON and TopoJSON — simplify, clip and convert in the browser.

maptalks.js

OSS

Extensible JavaScript library for integrated 2D and 3D mapping.

OpenGlobus

OSS

WebGL engine for interactive 3D globes, terrain, and geospatial data at planetary scale.

Alternative to Google Earth

OpenLayers

OSS

High-performance, feature-packed library for creating interactive maps on the web.

Alternative to Google Maps Platform, Bing Maps

Proj4js

OSS

JavaScript library for reprojecting coordinates between coordinate systems, including datum transformations.

Supercluster

OSS

Fast JavaScript library for clustering large GeoJSON point datasets in browsers and Node.js.

Turf.js

OSS

Advanced geospatial analysis library for browsers and Node.js. Modular and fast.

Alternative to ArcGIS