JSON - GeoJSON

Resample statistics from one set of GeoJSON polygons to another

Copy a property to all intersecting features

Extract coordinates from GeoJSON

compute the bounding box of geojson features

flatten multi geometries into normal geometries

merge normal geojson features into one multi geometry type feature

JavaScript helper functions for manipulating GeoJSON

Merge multiple GeoJSON files into one FeatureCollection.

normalize any geojson object into a geojson featurecollection

remove all but specified properties from features in a geojson featurecollection

generate random geojson points, lines, and polygons

enforce ring winding order

Converts polygon winding order between rfc7946 and d3 compatible conventions.

get a plain-english summary of what's in a geojson file

group geojson points into containing polygons

join geojson against json, dbf, and csv files

apply the ramer-douglas-peucker line simplification to geojson features or feature collections in JS or on the CLI

collection of functions for spatial operations and analysi

a turf.js port for Dart and Flutter

collection of fast functions for spatial javascript operations

run sql queries against geojson with javascript

Add a unique id to each Feature

extract shared borders of Polygons in a GeoJSON

generate point labels from GeoJSON polygons

Python tools for manipulating GeoJSON files

Python tools for editing indoor GeoJSON features: adding room heights, building walls and creating doors

a Python command-line tool for reducing the size of GeoJSON files.

web-based editor, supports many filetype imports & exports, operations

web-based editor, supports many filetype imports & exports, operations, sharing via GitHub

web-based editor, supports sharing on-site

Validate & Analyze Geographic Data Online

web-based editor from HERE XYZ

helps generate svg, images, and code from GeoJSON

electron app enables viewing GeoJSON locally and hack on it with turf; works offline

a modified version of Google's simple geojson editor

library for generating images from GeoJSON

browser-based GIS based on Turf.js

tools to view, inspect, and manipulate geospatial data

digitize images by overlaying on a web map and drawing

click on map to add points, download those as GeoJSON file

create, edit, and preview GeoJSON data in VSCode, just like geojson.io

find errors in your geojson files

alternative to geojsonhint

many validation functions, plus simple gjv command line tool

A tool to fix invalid GeoJSON objects

an extended set of matcher functions for the Jest Javascript unit testing framework tailored to evaluating GeoJSON data

Fix GeoJSON polygons that cross the antimeridian (Python package)

Pydantic models for GeoJSON

send geojson features to geojson.io from your command line

chrome extension for editing github files in geojson.io

REST interface for GeoJSON validation

Simple interface for simplification and conversion of GeoJSON and TopoJSON

Server with plugins that recast Esri, GitHub, Socrata and other services as GeoJSON endpoints

An open source Esri-Style Feature Server

Minifier (compressor) to reduce file sizes

CSVcsv2geojson: convert CSV to geojsongeojson2dsv: convert geojson to CSV and TSV

Transform GeoJSON objects into Mapnik XML stylesheets with embedded GeoJSON data and simplestyle-spec-derived styles.

Slice GeoJSON into vector tiles on the fly in the browser

Extract GeoJSON from Mapbox vector tiles

generate a static rtree (using terraformer) from a set of geojson features

convert anything to anythingfiona: nice python interface on top of ogr

convert shapefile zip archives to streaming GeoJSON

convert GPX & KML to geojson

convert GeoJSON to KML

convert GeoJSON to & from TopoJSON, join data from CSV

convert WKT to GeoJSON

convert WKT to GeoJSON (successor to wellknown)

converts proprietary Esri formats to GeoJSON

convert GTFS transit data to GeoJSON

convert any size stream of geojson into a streaming CSV, Shapefile or KML, etc.

A fast GeoJSON clustering library for browsers and Node.

SVGgeojson2svg: Converts GeoJSON to SVG string given SVG view port size and maps extent.geojson-svgify: Convert GeoJSON geometry paths to SVG polyline elements.geojson-to-svg-cli: Command line tool to convert GeoJSON to SVG.svg-to-geojson: Drag and drop SVG on the map and it returns GeoJSON back to you.

convert GeoJSON to/from newline-delimited GeoJSON

convert GeoJSON to/from GeoBuf

OpenStreetMaposmtogeojson: convert OpenStreetMap data to GeoJSONosm2geojson: converts OSM XML to GeoJSONosm2geojson: (Python) converts OSM XML and Overpass XML/JSON to GeoJSONminjur: converts OpenStreetMap data to GeoJSON faster than anything elsegeojsontoosm: convert GeoJSON to OSM XML[…

Topojson is a library that is capable of creating a topojson encoded format of merely any spatial object in Python.

Pure Python conversion library for common geospatial data formats

country, province, and geographical data

natural earth data in web-friendly sizes with hotlinking

customizable simplified versions of natural earth data

High Quality GeoJSON maps programmatically generated.

openflights airports & airplane routes

geojson & topojson for United States features

regional OpenStreetMap data as GeoJSON

outlines of every airport

building outlines

other features output from GeoPlanet by Aaron Straup Cope

The Getty Thesaurus of Geographic Names (TGN) As GeoJSON.

export runs & rides from Strava to GeoJSON

export all strava data to geojson, in node & on the web

Fetch geojson file by openstreetmap id

Full planet GeoJSON extracts, based on ISO and FIPS codes.

Collection of georeferenced boundaries of world countries and cultural regions for use in mapping historical data on the world scale.

Generate any maritime & land boundary in GeoJSON and other file formats or download directly from the web

Outlines of regions, departments, arrondissements, cantons and communes of France (mainland and overseas departments) in GeoJSON format

3D models of existing buildings in the City of Zagreb, Croatia in GeoJSON (CSV and Excel also available).

serialize geojson to/from python datatypes

serialize geojson to/from ruby RGeo datatypes

serialize geojson to/from rust datatypes

serialize GeoJSON to and from Java datatypes (based on Jackson)

serialize GeoJSON to and from Java datatypes (based on Gson)

serialize Java with annotations as GeoJSON

the current GeoJSON standard by IETF

the first specification, defining all the rules for GeoJSON structures

a review of the concepts behind the specification in a more narrative format.

List of GeoJSON invalid geometry issues with example files.