A modular geospatial engine written in JavaScript and TypeScript

🌎 Large-scale WebGL-powered Geospatial Data Visualization analysis engine.

地理坐标系转换工具

A flexible web-based editor, converter, visualization tool, for geospatial data

A library for drawing on maps that supports Mapbox, MapLibre, Google Maps, OpenLayers and Leaflet out the box

🌐 📍 Geolocation Queries with Firestore & RxJS

Import GTFS transit data into SQLite and query routes, stops, times, fares and more.

convert KML, TCX, and GPX to GeoJSON, without the fuss

Display arbitrary GeoJSON on a map with a timeline slider and play button

CesiumJS 的扩展库，提供事件订阅、大数据geojson加载、geojson样式、tooltip、popup、缩放控制、绘图工具、测量工具、双屏联动、指南针、热力图等功能

An ogr2ogr wrapper library

Visualize country borders from different times in history (2000 BC-1994)

A react component framework for declarative GIS application development.

Generate geoJSON of transit route data from a GTFS file.

🌍 Geospatial Visualization Chart Library

a checker for the geojson format. goes beyond a schema, checking semantics and producing character-level warnings.

A downloader of geodata

Easily download boundaries from OpenStreetMap

XYZ Maps is an open-source map editor written in TypeScript.

Geographic data editing tool based on L7