Repository Index

A spy satellite simulator in your browser, except the data is real. Live open source spatial intelligence on a photorealistic 3D globe.

• 3d-globe
• cesium
• flight-tracking
• geospatial

🍃 number one JavaScript library for interactive maps 🇺🇦

• javascript
• leaflet
• maps

🍃 Organic Maps is a free Android & iOS offline maps app for more than 12M travelers, tourists, hikers, and cyclists. It uses crowd-sourced OpenStreetMap data and is developed with love by the community. No ads, no tracking, no data collection, no crapware. Please donate to support the development!

• ios
• android
• privacy
• cpp

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

• 3d
• geospatial
• gis
• 3d-tiles

WebGL2 powered visualization framework

• webgl
• data-visualization
• javascript
• visualization

OpenLayers

• openlayers
• javascript
• maps

Interactive, thoroughly customizable maps in the browser, powered by vector tiles and WebGL

• 3d
• javascript
• maps
• webgl

A modular geospatial engine written in JavaScript and TypeScript

• javascript
• algorithm
• computational-geometry
• geojson

Visualization of all roads within any city

🗺 MapSCII is a Braille & ASCII world map renderer for your console - enter => telnet mapscii.me <= on Mac (brew install telnet) and Linux, connect with PuTTY on Windows

• ascii-art
• map
• vector-tiles
• braille

Open source GPS tracking platform - self-hosted or managed, 200+ device protocols

• gps
• java
• traccar
• gps-tracking

Python Data. Leaflet.js Maps.

• data-science
• data-visualization
• javascript
• maps

TranslatedProvince, city, district/county and township level (three-level or four-level) city data, with pinyin annotations, coordinates, and administrative region boundary ranges; latest collection on April 3, 2026; provides csv format files, supports online conversion into multi-level linked js code and general json format, provides software to convert into shp, geojson, sql and import into databases; includes js collection source code that runs in the browser, combining administrative division data from the Ministry of Civil Affairs of the People's Republic of China, China National Geographical Names Information Library, the Bureau of Statistics, Amap (Gaode Map), and Tencent Maps

Open source routing engine for OpenStreetMap. Use it as Java library or standalone web server.

• openstreetmap
• java
• geospatial
• dijkstra

Google map library for react that allows rendering components as markers :tada:

• react
• map
• google
• component

OsmAnd

Translated江山时序 (Jiangshan Shixu, "Rivers, Mountains and the Order of Time") · Interactive Historical Atlas of China across 18 dynasties, 164 territory snapshots, ancient-to-modern place genealogy & classical poetry routes. Interactive map timeline of Chinese history (403 BCE – Present)

• ancient-china
• cartography
• china-map
• chinese-history

Apache Calcite

• geospatial
• calcite
• java
• big-data

An extension of GeoJSON that encodes topology! 🌐

Browser-based ground station suite for celestial body, mission and satellite tracking, SDR reception, hardware control, and telemetry decoding

• antenna
• fft
• python
• radio

Official GeoServer repository

• web
• mapping
• web-mapping
• java

Tools for editing Shapefile, GeoJSON, TopoJSON and CSV files

• geojson
• topojson
• shapefile
• gis

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

• webgl
• gis
• data-visualization
• mapbox

🆔 The easy-to-use OpenStreetMap editor in JavaScript.

• openstreetmap
• d3
• editor
• mapping