Awesome Geojson Overview

GeoJSON utilities that will make your life easier.

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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 (⭐108): Resample statistics from one set of GeoJSON polygons to another
• geo_assigner (⭐2): Copy a property to all intersecting features
• geojson-coords (⭐31): Extract coordinates from GeoJSON
• geojson-extent: compute the bounding box of geojson features
• geojson-flatten (⭐51): flatten multi geometries into normal geometries
• geojson-multiply (⭐2): merge normal geojson features into one multi geometry type feature
• geojson-js-utils (⭐403): JavaScript helper functions for manipulating GeoJSON
• geojson-merge (⭐231): Merge multiple GeoJSON files into one FeatureCollection.
• geojson-normalize (⭐32): normalize any geojson object into a geojson featurecollection
• geojson-pick: remove all but specified properties from features in a geojson featurecollection
• geojson-random (⭐74): generate random geojson points, lines, and polygons
• geojson-rewind (⭐122): enforce ring winding order
• rfc7946-to-d3 (⭐11): Converts polygon winding order between rfc7946 and d3 compatible (⭐1k) conventions.
• geojson-summary (⭐34): get a plain-english summary of what's in a geojson file
• point-grouper: group geojson points into containing polygons
• geojson-join (⭐35): join geojson against json, dbf, and csv files
• simplify-geojson (⭐176): apply the ramer-douglas-peucker line simplification to geojson features or feature collections in JS or on the CLI
• turf (⭐9k): collection of functions for spatial operations and analysi
• turf_dart (⭐62): a turf.js port for Dart and Flutter
• de9im (⭐26): collection of fast functions for spatial javascript operations
• winnow (⭐90): run sql queries against geojson with javascript
• geojson-id-streaming (⭐2): Add a unique id to each Feature
• geojson-mesh (⭐12): extract shared borders of Polygons in a GeoJSON
• geojson-polygon-labels (⭐80): generate point labels from GeoJSON polygons
• geojsontools (⭐18): Python tools for manipulating GeoJSON files
• geojson-indoor-tools (⭐6): Python tools for editing indoor GeoJSON features: adding room heights, building walls and creating doors
• geojson-shave (⭐43): 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 (⭐75): 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 (⭐13): 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

validation

• geojsonhint (⭐257): find errors in your geojson files
• check-geojson (⭐65): alternative to geojsonhint
• geojson-validation: many validation functions, plus simple gjv command line tool
• gjf (⭐101): A tool to fix invalid GeoJSON objects
• Jest-GeoJSON (⭐9): an extended set of matcher functions for the Jest Javascript unit testing framework tailored to evaluating GeoJSON data
• antimeridian (⭐42): Fix GeoJSON polygons that cross the antimeridian (Python package)

services

• geojsonio-cli (⭐170): send geojson features to geojson.io from your command line
• geojsonio-extension (⭐1): 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 (⭐101): An open source Esri-Style Feature Server
• geojson minify: Minifier (compressor) to reduce file sizes

conversion

• CSV
  • csv2geojson (⭐360): convert CSV to geojson
  • geojson2dsv (⭐8): convert geojson to CSV and TSV
• geojson-mapnikify (⭐38): Transform GeoJSON objects into Mapnik XML stylesheets with embedded GeoJSON data and simplestyle-spec-derived styles.
• geojson-vt (⭐1.8k): Slice GeoJSON into vector tiles on the fly in the browser
• vt-geojson (⭐60): Extract GeoJSON from Mapbox vector tiles
• geojson2rtree (⭐9): generate a static rtree (using terraformer) from a set of geojson features
• ogr2ogr: convert anything to anything
  • fiona (⭐1.1k): nice python interface on top of ogr
• shp2json: convert shapefile zip archives to streaming GeoJSON
• togeojson (⭐401): convert GPX & KML to geojson
• tokml (⭐184): convert GeoJSON to KML
• topojson (⭐4.6k): convert GeoJSON to & from TopoJSON, join data from CSV
• wellknown (⭐264): convert WKT to GeoJSON
• betterknown (⭐38): convert WKT to GeoJSON (successor to wellknown)
• esri2open (⭐254) converts proprietary Esri formats to GeoJSON
• gtfs2geojson (⭐25): convert GTFS transit data to GeoJSON
• geoxform (⭐14): convert any size stream of geojson into a streaming CSV, Shapefile or KML, etc.
• supercluster (⭐2k): A fast GeoJSON clustering library for browsers and Node.
• SVG
  • geojson2svg (⭐213): Converts GeoJSON to SVG string given SVG view port size and maps extent.
  • geojson-svgify (⭐17): Convert GeoJSON geometry paths to SVG polyline elements.
  • geojson-to-svg-cli (⭐27): Command line tool to convert GeoJSON to SVG.
  • svg-to-geojson (⭐114): 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
  • osmtogeojson (⭐676): convert OpenStreetMap data to GeoJSON
  • osm2geojson (⭐12): converts OSM XML to GeoJSON
  • osm2geojson (⭐96): (Python) converts OSM XML and Overpass XML/JSON to GeoJSON
  • minjur (⭐59): converts OpenStreetMap data to GeoJSON faster than anything else
  • geojsontoosm (⭐21): convert GeoJSON to OSM XML
  • geojson2osm (⭐6): convert GeoJSON to OSM XML
  • osm-and-geojson (⭐90): convert GeoJSON to OSM XML and OSM XML to GeoJSON
  • geojson2osm-es6 (⭐1): convert GeoJSON to OSM XML
  • query-overpass (⭐156) CLI to make Overpass query and transform result to GeoJSON. Based on osmtogeojson (⭐676)
• topojson for Python (⭐175): Topojson is a library that is capable of creating a topojson encoded format of merely any spatial object in Python.
• geomet (⭐168): Pure Python conversion library for common geospatial data formats

data

• natural earth: country, province, and geographical data
• geojson.xyz: natural earth data in web-friendly sizes with hotlinking
• world-atlas (⭐1k): customizable simplified versions of natural earth data
• geo-maps (⭐1.3k): High Quality GeoJSON maps programmatically generated.
• openflights-geojson (⭐28): openflights airports & airplane routes
• us-atlas (⭐866): geojson & topojson for United States features
• metro-extracts: regional OpenStreetMap data as GeoJSON
• whereonearth-airport (⭐14): outlines of every airport
• whereonearth-building (⭐9): building outlines
• whereonearth repos: other features output from GeoPlanet by Aaron Straup Cope
• tgn-geojson (⭐15): The Getty Thesaurus of Geographic Names (TGN) As GeoJSON.
• strava-to-geojsonio (⭐7): export runs & rides from Strava to GeoJSON
• strava-geojson (⭐26): export all strava data to geojson, in node & on the web
• gimme OSM: Fetch geojson file by openstreetmap id
• country-levels (⭐19) Full planet GeoJSON extracts, based on ISO and FIPS codes.
• historical-basemaps (⭐432): Collection of georeferenced boundaries of world countries and cultural regions for use in mapping historical data on the world scale.
• 99boundaries (⭐10): Generate any maritime & land boundary in GeoJSON and other file formats or download directly from the web
• france-geojson (⭐714): Outlines of regions, departments, arrondissements, cantons and communes of France (mainland and overseas departments) in GeoJSON format

serialization

• python-geojson (⭐898): serialize geojson to/from python datatypes
• rgeo-geojson (⭐184): serialize geojson to/from ruby RGeo datatypes
• rust-geojson (⭐263): serialize geojson to/from rust datatypes
• geojson-jackson (⭐262): serialize GeoJSON to and from Java datatypes (based on Jackson)
• mapbox-java (⭐410): serialize GeoJSON to and from Java datatypes (based on Gson (⭐23k))
• geojson-serializer (⭐6): serialize Java with annotations as GeoJSON

resources

• RFC 7946 – The GeoJSON Format: the current GeoJSON standard by IETF
• GeoJSON.org: the first specification, defining all the rules for GeoJSON structures
• More than you ever wanted to know about GeoJSON: a review of the concepts behind the specification in a more narrative format.
• geojson-invalid-geometry (⭐31): List of GeoJSON invalid geometry issues with example files.

License

To the extent possible under law, Tom MacWright has waived all copyright and related or neighboring rights to this work.