awesome geojson 
GeoJSON utilities that will make your life easier.
Sponsored by Placemark, a collaborative editor for maps with great
support for GeoJSON
operations
- CoGran:
Resample statistics from one set of GeoJSON polygons to another
- geo_assigner:
Copy a property to all intersecting features
- geojson-coords:
Extract coordinates from GeoJSON
- geojson-extent:
compute the bounding box of geojson features
- geojson-flatten:
flatten multi geometries into normal geometries
- geojson-multiply:
merge normal geojson features into one multi geometry type feature
- geojson-js-utils:
JavaScript helper functions for manipulating GeoJSON
- geojson-merge:
Merge multiple GeoJSON files into one FeatureCollection.
- geojson-normalize:
normalize any geojson object into a geojson featurecollection
- geojson-pick:
remove all but specified properties from features in a geojson
featurecollection
- geojson-random:
generate random geojson points, lines, and polygons
- geojson-rewind:
enforce ring winding order
- rfc7946-to-d3:
Converts polygon winding order between rfc7946 and d3 compatible
conventions.
- geojson-summary:
get a plain-english summary of what’s in a geojson file
- point-grouper:
group geojson points into containing polygons
- geojson-join:
join geojson against json, dbf, and csv files
- simplify-geojson:
apply the ramer-douglas-peucker line simplification to geojson features
or feature collections in JS or on the CLI
- turf: collection of
functions for spatial operations and analysi
- turf_dart: a
turf.js port for Dart and Flutter
- de9im: collection
of fast functions for spatial javascript operations
- winnow: run sql
queries against geojson with javascript
- geojson-id-streaming:
Add a unique id to each Feature
- geojson-mesh:
extract shared borders of Polygons in a GeoJSON
- geojson-polygon-labels:
generate point labels from GeoJSON polygons
- geojsontools:
Python tools for manipulating GeoJSON files
- geojson-indoor-tools:
Python tools for editing indoor GeoJSON features: adding room heights,
building walls and creating doors
- geojson-shave: a
Python command-line tool for reducing the size of GeoJSON files.
editors & viewers
- play.placemark.io:
web-based editor, supports many filetype imports & exports,
operations
- geojson.io: web-based editor,
supports many filetype imports & exports, operations, sharing via
GitHub
- umap: web-based
editor, supports sharing on-site
- geojson.tools: web-based editor
from HERE XYZ
- mapstarter: helps generate svg,
images, and code from GeoJSON
- gjv: electron app
enables viewing GeoJSON locally and hack on it with turf; works
offline
- GeoJSON
editor: a modified version of Google’s simple geojson editor
- geojson2image:
library for generating images from GeoJSON
- dropchop: browser-based GIS based
on Turf.js
- Web GIS: tools
to view, inspect, and manipulate geospatial data
- img2geojson:
digitize images by overlaying on a web map and drawing
- point_ed: click on
map to add points, download those as GeoJSON file
- geojson.io-for-vscode:
create, edit, and preview GeoJSON data in VSCode, just like geojson.io
validation
- geojsonhint:
find errors in your geojson files
- check-geojson:
alternative to geojsonhint
- geojson-validation:
many validation functions, plus simple gjv command line tool
- gjf: A tool to fix
invalid GeoJSON objects
- Jest-GeoJSON:
an extended set of matcher functions for the Jest Javascript unit
testing framework tailored to evaluating GeoJSON data
- antimeridian:
Fix GeoJSON polygons that cross the antimeridian (Python package)
- geojson-pydantic:
Pydantic models for
GeoJSON
services
- geojsonio-cli:
send geojson features to geojson.io from your command line
- geojsonio-extension:
chrome extension for editing github files in geojson.io
- geojsonlint: REST interface
for GeoJSON validation
- mapshaper: Simple interface for
simplification and conversion of GeoJSON and TopoJSON
- koop: Server with plugins
that recast Esri, GitHub, Socrata and other services as GeoJSON
endpoints
- featureserver:
An open source Esri-Style Feature Server
- geojson
minify: Minifier (compressor) to reduce file sizes
conversion
- CSV
- geojson-mapnikify:
Transform GeoJSON objects into Mapnik XML stylesheets with embedded
GeoJSON data and simplestyle-spec-derived styles.
- geojson-vt: Slice
GeoJSON into vector tiles on the fly in the browser
- vt-geojson:
Extract GeoJSON from Mapbox vector tiles
- geojson2rtree:
generate a static rtree (using terraformer) from a set of geojson
features
- ogr2ogr: convert
anything to anything
- fiona: nice python
interface on top of ogr
- shp2json: convert
shapefile zip archives to streaming GeoJSON
- togeojson: convert
GPX & KML to geojson
- tokml: convert GeoJSON
to KML
- topojson: convert
GeoJSON to & from TopoJSON, join data from CSV
- wellknown: convert
WKT to GeoJSON
- betterknown:
convert WKT to GeoJSON (successor to wellknown)
- esri2open
converts proprietary Esri formats to GeoJSON
- gtfs2geojson:
convert GTFS transit data to GeoJSON
- geoxform: convert
any size stream of geojson into a streaming CSV, Shapefile or KML,
etc.
- supercluster: A
fast GeoJSON clustering library for browsers and Node.
- SVG
- geojson2svg:
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.
- geojson2ndjson:
convert GeoJSON to/from newline-delimited GeoJSON
- geobuf:
convert GeoJSON to/from GeoBuf
- OpenStreetMap
- topojson for
Python: Topojson is a library that is capable of creating a topojson
encoded format of merely any spatial object in Python.
- geomet: Pure Python
conversion library for common geospatial data formats
data
serialization
resources
License
To the extent possible under law, Tom MacWright has waived all
copyright and related or neighboring rights to this work.
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