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
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An extension of GeoJSON that encodes topology! 🌐
Tools for editing Shapefile, GeoJSON, TopoJSON and CSV files
Slice GeoJSON into vector tiles on the fly in the browser
🗺 High Quality GeoJSON maps programmatically generated.
- geojson
- country
- boundaries
- world
Extended geographic projections for d3-geo.
Geographic projections, spherical shapes and spherical trigonometry.
Collection of georeferenced boundaries of world countries and cultural regions for use in mapping historical data on global or continental scale
convert osm to geojson
- openstreetmap
- openstreetmap-data
- geojson
- javascript
JavaScript helper functions for manipulating GeoJSON
magically convert csv files to geojson files
- banished
GeoJSON-emitting WKT parser for browsers and node
Converts GeoJSON to SVG string given SVG view port size and maps extent.
Merge multiple GeoJSON files into one FeatureCollection.
- banished
A geographic toolkit for dealing with geometry, geography, formats, and building geodatabases
- data-management
- arcgis
- geojson
- javascript
Morphing geojson polygons into rectangles
Convert GeoJSON to KML.
apply the ramer-douglas-peucker line simplification to geojson features or feature collections in JS or on the CLI
Make queries to OpenStreetMap's overpass API and output as GeoJSON
A web-based GTFS editing framework. THIS PROJECT IS DEPRECATED. See https://github.com/ibi-group/datatools-ui for current version.
enforce polygon ring winding order for geojson
Clipping and geometric operations for spherical polygons.
- d3
- map
- polygon-clipping
- projection
A very simple "choropleth" style map with D3. All you need is a GeoJSON of polygons.
An open source Geoservices Implementation (deprecated)