Kepler.gl is a powerful open source geospatial analysis tool for large-scale data sets.
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A modular geospatial engine written in JavaScript and TypeScript
- javascript
- algorithm
- computational-geometry
- geojson
Tools for editing Shapefile, GeoJSON, TopoJSON and CSV files
🌎 Large-scale WebGL-powered Geospatial Data Visualization analysis engine.
A very fast geospatial point clustering library for browsers and Node.
- clustering
- algorithm
- computational-geometry
- javascript
Extended geographic projections for d3-geo.
Geographic projections, spherical shapes and spherical trigonometry.
Open-source backend for Kepler.gl. Self-hosted alternative to CARTO and Foursquare Studio.
- athena
- bigquey
- deck-gl
- gis-platform
JavaScript helper functions for manipulating GeoJSON
Continuous area cartograms with d3 and TopoJSON
- cartogram
- javascript
- topojson
- topology
A geographic toolkit for dealing with geometry, geography, formats, and building geodatabases
- data-management
- arcgis
- geojson
- javascript
A user friendly way to search OpenStreetMap data for features in proximity to each other.
- gui
- javascript
- open-source-research
- open-street-map
Morphing geojson polygons into rectangles
apply the ramer-douglas-peucker line simplification to geojson features or feature collections in JS or on the CLI
Clipping and geometric operations for spherical polygons.
- d3
- map
- polygon-clipping
- projection
CoGran - A command line tool for combining data of different spatial granularity
An open source Geoservices Implementation (deprecated)
Set of d3 projections for showing countries distant lands together
Command line tool to generate point labels from GeoJSON polygons
Deprecated
A command line utility to convert heavy GIS sources into elegant administrative & topographic topojson files, raster files, and web friendly svg maps.
New York City Census Reporting Tool
- census-data
- demographics
- nyc
- ember
DE-9IM spatial predicate library implemented in Javascript.
- de-9im
- spatial
- predicates
- javascript
Command line tool to extract borders of GeoJSON Polygons into a non-overlapping set of LineString's