Real-time Geospatial and Geofencing

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

A modular geospatial engine written in JavaScript

A light and plugable JavaScript library for integrated 2D/3D maps.

Mapnik is an open source toolkit for developing mapping applications

Blender addons to make the bridge between Blender and geographic data

OSMnx: Python for street networks. Retrieve, model, analyze, and visualize street networks and other spatial data from OpenStreetMap.

Tools for editing Shapefile, GeoJSON, TopoJSON and CSV files

Google Earth Enterprise - Open Source

Reversing Google's 3D satellite mode

🌎 Large-scale WebGL-powered Geospatial Data Visualization analysis framework which relies on Mapbox GL or AMap to render basemaps.

😎Awesome GIS is a collection of geospatial related sources, including cartographic tools, geoanalysis tools, developer tools, data, conference & communities, news, massive open online course, some amazing map sites, and more.

Rasterio reads and writes geospatial raster datasets

JavaScript library to transform coordinates from one coordinate system to another, including datum transformations

Mesa is an agent-based modeling framework in Python

Official GeoTools repository

GeoNode is an open source platform that facilitates the creation, sharing, and collaborative use of geospatial data.

Specification for streaming massive heterogeneous 3D geospatial datasets 🌎

🍂🗺️ The most powerful leaflet plugin for drawing and editing geometry layers

PostGIS spatial database extension to PostgreSQL [mirror]

Make social simulations on interactive maps with Javascript! Agent-based modeling for the web.

Documentation and samples for ArcGIS API for Python

Geographic add-ons for Django REST Framework

Fiona reads and writes geographic data files

GMap.NET - Great Maps for Windows Forms & Presentation

Neo4j Spatial is a library of utilities for Neo4j that faciliates the enabling of spatial operations on data. In particular you can add spatial indexes to already located data, and perform spatial operations on the data like searching for data within specified regions or within a specified distance of a point of interest. In addition classes are provided to expose the data to geotools and thereby to geotools enabled applications like geoserver and uDig.

Tegola is a Mapbox Vector Tile server written in Go

R Interface to Leaflet Maps

A collection of 360+ Jupyter Python notebook examples for using Google Earth Engine with interactive mapping

An easy-to-use mapping library for use in web and desktop applications