Node.js

Apache ECharts

OSS

JavaScript visualization library with interactive charts, maps, and geographic data components.

CesiumJS

OSS

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

Alternative to Google Earth

geoblaze

OSS

Pure-JavaScript raster processing engine for GeoTIFFs in the browser and Node.js.

geojson-vt

OSS

Slices GeoJSON into vector tiles on the fly in the browser, for rendering without a tile server.

Turf.js

OSS

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

Alternative to ArcGIS

OSRM

OSS

High-performance routing engine designed to run on OpenStreetMap data.

Alternative to HERE Technologies, TomTom, Google Maps Platform

mapshaper

OSS

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

Mapnik

OSS

C++ cartographic rendering library for maps and tiles from geospatial data sources.

Pelias

OSS

Open-source geocoder using data from OpenStreetMap, OpenAddresses, and more.

Alternative to Google Maps Platform, HERE Technologies

Supercluster

OSS

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

MapLibre Native

OSS

Open-source native mapping engine for vector maps across mobile, desktop, and embedded platforms.

Proj4js

OSS

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

geotiff.js

OSS

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

Koop

OSS

JavaScript toolkit for serving transformed geospatial data through web mapping APIs.