JavaScript

ArcGIS

Esri's comprehensive GIS platform for mapping, spatial analysis, and data management.

CesiumJS

OSS

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

Alternative to Google Earth

deck.gl

OSS

WebGL-powered framework for visual exploratory data analysis of large datasets.

geotiff.js

OSS

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

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

H3

OSS

Uber's hexagonal hierarchical geospatial indexing system for efficient spatial analysis.

HERE

Location platform with mapping, routing, and location services for enterprise applications.

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.

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.

Turf.js

OSS

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

Alternative to ArcGIS

Protomaps

OSS

Free, open-source map of the world deployable as a single static file (PMTiles).

Alternative to Mapbox, Google Maps Platform

Supercluster

OSS

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