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intersecting features 11 | * [geojson-coords](https://github.com/mapbox/geojson-coords): Extract coordinates from GeoJSON 12 | * [geojson-extent](https://www.npmjs.com/package/geojson-extent): compute the bounding box of geojson features 13 | * [geojson-flatten](https://github.com/tmcw/geojson-flatten): flatten multi geometries into normal geometries 14 | * [geojson-multiply](https://github.com/haoliangyu/geojson-multiply): merge normal geojson features into one multi geometry type feature 15 | * [geojson-js-utils](https://github.com/maxogden/geojson-js-utils): JavaScript helper functions for manipulating GeoJSON 16 | * [geojson-merge](https://github.com/mapbox/geojson-merge): Merge multiple GeoJSON files into one FeatureCollection. 17 | * [geojson-normalize](https://github.com/mapbox/geojson-normalize): normalize any geojson object into a geojson featurecollection 18 | * [geojson-pick](https://www.npmjs.com/package/geojson-pick): remove all but specified properties from features in a geojson featurecollection 19 | * [geojson-random](https://github.com/tmcw/geojson-random): generate random geojson points, lines, and polygons 20 | * [geojson-rewind](https://github.com/mapbox/geojson-rewind): enforce ring winding order 21 | * [rfc7946-to-d3](https://github.com/tyrasd/rfc7946-to-d3): Converts polygon winding order between rfc7946 and [d3 compatible](https://github.com/d3/d3-geo#d3-geo) conventions. 22 | * [geojson-summary](https://github.com/mapbox/geojson-summary): get a plain-english summary of what's in a geojson file 23 | * [point-grouper](https://github.com/substack/point-grouper): group geojson points into containing polygons 24 | * [geojson-join](https://github.com/tmcw/geojson-join): join geojson against json, dbf, and csv files 25 | * [simplify-geojson](https://github.com/maxogden/simplify-geojson): apply the ramer-douglas-peucker line simplification to geojson features or feature collections in JS or on the CLI 26 | * [turf](https://github.com/Turfjs/turf): collection of functions for spatial operations and analysi 27 | * [turf_dart](https://github.com/dartclub/turf_dart): a turf.js port for Dart and Flutter 28 | * [de9im](https://github.com/dpmcmlxxvi/de9im): collection of fast functions for spatial javascript operations 29 | * [winnow](https://github.com/dmfenton/winnow): run sql queries against geojson with javascript 30 | * [geojson-id-streaming](https://github.com/andrewharvey/geojson-id-streaming): Add a unique id to each Feature 31 | * [geojson-mesh](https://github.com/andrewharvey/geojson-mesh): extract shared borders of Polygons in a GeoJSON 32 | * [geojson-polygon-labels](https://github.com/andrewharvey/geojson-polygon-labels): generate point labels from GeoJSON polygons 33 | * [geojsontools](https://github.com/micolous/geojsontools): Python tools for manipulating GeoJSON files 34 | * [geojson-indoor-tools](https://github.com/armanjr/geojson-indoor-tools): Python tools for editing indoor GeoJSON features: adding room heights, building walls and creating doors 35 | * [geojson-shave](https://github.com/ben-n93/geojson-shave): a Python command-line tool for reducing the size of GeoJSON files. 36 | 37 | 38 | 39 | ### editors & viewers 40 | 41 | * [play.placemark.io](https://play.placemark.io/): web-based editor, supports many filetype imports & exports, operations 42 | * [geojson.io](http://geojson.io/): web-based editor, supports many filetype imports & exports, operations, sharing via GitHub 43 | * [umap](http://umap.openstreetmap.fr/en/): web-based editor, supports sharing on-site 44 | * [geojson.tools](http://geojson.tools/): web-based editor from HERE XYZ 45 | * [mapstarter](http://mapstarter.com/): helps generate svg, images, and code from GeoJSON 46 | * [gjv](https://github.com/anandthakker/gjv): electron app enables viewing GeoJSON locally and hack on it with turf; works offline 47 | * [GeoJSON editor](https://tomscholz.github.io/geojson-editor/): a modified version of Google's simple geojson editor 48 | * [geojson2image](https://github.com/brycejohnston/geojson2image): library for generating images from GeoJSON 49 | * [dropchop](http://dropchop.io/): browser-based GIS based on Turf.js 50 | * [Web GIS](https://drewweth.github.io/geodebugger): tools to view, inspect, and manipulate geospatial data 51 | * [img2geojson](https://caseymm.github.io/img2geojson/): digitize images by overlaying on a web map and drawing 52 | * [point_ed](https://zverik.github.io/point_ed/): click on map to add points, download those as GeoJSON file 53 | * [geojson.io-for-vscode](https://marketplace.visualstudio.com/items?itemName=swallow.geojson-io-for-vscode): create, edit, and preview GeoJSON data in VSCode, just like [geojson.io](http://geojson.io/) 54 | 55 | ### validation 56 | 57 | * [geojsonhint](https://github.com/mapbox/geojsonhint): find errors in your geojson files 58 | * [check-geojson](https://github.com/placemark/check-geojson): alternative to geojsonhint 59 | * [geojson-validation](https://www.npmjs.com/package/geojson-validation): many validation functions, plus simple gjv command line tool 60 | * [gjf](https://github.com/yazeed44/gjf): A tool to fix invalid GeoJSON objects 61 | * [Jest-GeoJSON](https://github.com/M-Scott-Lassiter/jest-geojson): an extended set of matcher functions for the Jest Javascript unit testing framework tailored to evaluating GeoJSON data 62 | * [antimeridian](https://github.com/gadomski/antimeridian): Fix GeoJSON polygons that cross the antimeridian (Python package) 63 | * [geojson-pydantic](https://github.com/developmentseed/geojson-pydantic): [Pydantic](https://docs.pydantic.dev/latest/) models for GeoJSON 64 | 65 | ### services 66 | 67 | * [geojsonio-cli](https://github.com/mapbox/geojsonio-cli): send geojson features to geojson.io from your command line 68 | * [geojsonio-extension](https://github.com/mapbox/geojsonio-extension): chrome extension for editing github files in geojson.io 69 | * [geojsonlint](http://geojsonlint.com/): REST interface for GeoJSON validation 70 | * [mapshaper](http://mapshaper.org/): Simple interface for simplification and conversion of GeoJSON and TopoJSON 71 | * [koop](https://koopjs.github.io): Server with plugins that recast Esri, GitHub, Socrata and other services as GeoJSON endpoints 72 | * [featureserver](https://github.com/featureserver/featureserver): An open source Esri-Style Feature Server 73 | * [geojson minify](https://open-innovations.github.io/geojson-minify/): Minifier (compressor) to reduce file sizes 74 | 75 | ### conversion 76 | 77 | * **CSV** 78 | * [csv2geojson](https://github.com/mapbox/csv2geojson): convert CSV to geojson 79 | * [geojson2dsv](https://github.com/tmcw/geojson2dsv): convert geojson to CSV and TSV 80 | * [geojson-mapnikify](https://github.com/mapbox/geojson-mapnikify): Transform GeoJSON objects into Mapnik XML stylesheets with embedded GeoJSON data and simplestyle-spec-derived styles. 81 | * [geojson-vt](https://github.com/mapbox/geojson-vt): Slice GeoJSON into vector tiles on the fly in the browser 82 | * [vt-geojson](https://github.com/developmentseed/vt-geojson): Extract GeoJSON from Mapbox vector tiles 83 | * [geojson2rtree](https://github.com/maxogden/geojson2rtree): generate a static rtree (using terraformer) from a set of geojson features 84 | * [ogr2ogr](http://www.gdal.org/ogr2ogr.html): convert anything to anything 85 | * [fiona](https://github.com/toblerity/fiona): nice python interface on top of ogr 86 | * [shp2json](https://github.com/substack/shp2json): convert shapefile zip archives to streaming GeoJSON 87 | * [togeojson](https://github.com/tmcw/togeojson): convert GPX & KML to geojson 88 | * [tokml](https://github.com/mapbox/tokml): convert GeoJSON to KML 89 | * [topojson](https://github.com/topojson/topojson): convert GeoJSON to & from TopoJSON, join data from CSV 90 | * [wellknown](https://github.com/mapbox/wellknown): convert WKT to GeoJSON 91 | * [betterknown](https://github.com/placemark/betterknown): convert WKT to GeoJSON (successor to wellknown) 92 | * [esri2open](https://github.com/project-open-data/esri2open) converts proprietary Esri formats to GeoJSON 93 | * [gtfs2geojson](https://github.com/tmcw/gtfs2geojson): convert GTFS transit data to GeoJSON 94 | * [geoxform](https://github.com/koopjs/geoxform): convert any size stream of geojson into a streaming CSV, Shapefile or KML, etc. 95 | * [supercluster](https://github.com/mapbox/supercluster): A fast GeoJSON clustering library for browsers and Node. 96 | * **SVG** 97 | * [geojson2svg](https://github.com/gagan-bansal/geojson2svg): Converts GeoJSON to SVG string given SVG view port size and maps extent. 98 | * [geojson-svgify](https://github.com/juliuste/geojson-svgify): Convert GeoJSON geometry paths to SVG polyline elements. 99 | * [geojson-to-svg-cli](https://github.com/derhuerst/geojson-to-svg-cli): Command line tool to convert GeoJSON to SVG. 100 | * [svg-to-geojson](https://github.com/mapbox/svg-to-geojson): Drag and drop SVG on the map and it returns GeoJSON back to you. 101 | * [geojson2ndjson](https://www.npmjs.com/package/geojson2ndjson): convert GeoJSON to/from newline-delimited GeoJSON 102 | * [geobuf](https://www.npmjs.com/package/geobuf/v/0.2.1): convert GeoJSON to/from GeoBuf 103 | * **OpenStreetMap** 104 | * [osmtogeojson](https://github.com/tyrasd/osmtogeojson): convert OpenStreetMap data to GeoJSON 105 | * [osm2geojson](https://github.com/rclark/osm2geojson): converts OSM XML to GeoJSON 106 | * [osm2geojson](https://github.com/aspectumapp/osm2geojson): (Python) converts OSM XML and Overpass XML/JSON to GeoJSON 107 | * [minjur](https://github.com/mapbox/minjur): converts OpenStreetMap data to GeoJSON faster than anything else 108 | * [geojsontoosm](https://github.com/tyrasd/geojsontoosm): convert GeoJSON to OSM XML 109 | * [geojson2osm](https://github.com/Rub21/geojson2osm): convert GeoJSON to OSM XML 110 | * [osm-and-geojson](https://github.com/aaronlidman/osm-and-geojson): convert GeoJSON to OSM XML and OSM XML to GeoJSON 111 | * [geojson2osm-es6](https://github.com/DenisCarriere/geojson2osm-es6/): convert GeoJSON to OSM XML 112 | * [query-overpass](https://github.com/perliedman/query-overpass) CLI to make Overpass query and transform result to GeoJSON. Based on [osmtogeojson](https://github.com/tyrasd/osmtogeojson) 113 | * [topojson for Python](https://github.com/mattijn/topojson): Topojson is a library that is capable of creating a topojson encoded format of merely any spatial object in Python. 114 | * [geomet](https://github.com/geomet/geomet): Pure Python conversion library for common geospatial data formats 115 | 116 | 117 | ### data 118 | 119 | * [natural earth](http://www.naturalearthdata.com/): country, province, and geographical data 120 | * [geojson.xyz](http://geojson.xyz/): natural earth data in web-friendly sizes with hotlinking 121 | * [world-atlas](https://github.com/topojson/world-atlas): customizable simplified versions of natural earth data 122 | * [geo-maps](https://github.com/simonepri/geo-maps): High Quality GeoJSON maps programmatically generated. 123 | * [openflights-geojson](https://github.com/tmcw/openflights-geojson): [openflights](http://openflights.org/) airports & airplane routes 124 | * [us-atlas](https://github.com/topojson/us-atlas): geojson & topojson for United States features 125 | * [metro-extracts](https://mapzen.com/data/metro-extracts/): regional OpenStreetMap data as GeoJSON 126 | * [whereonearth-airport](https://github.com/straup/whereonearth-airport): outlines of every airport 127 | * [whereonearth-building](https://github.com/straup/whereonearth-building/): building outlines 128 | * [whereonearth repos](https://github.com/search?q=user%3Astraup+whereonearth): other features output from GeoPlanet by Aaron Straup Cope 129 | * [tgn-geojson](https://github.com/straup/tgn-geojson): The Getty Thesaurus of Geographic Names (TGN) As GeoJSON. 130 | * [strava-to-geojsonio](https://github.com/taketime/strava-to-geojsonio): export runs & rides from Strava to GeoJSON 131 | * [strava-geojson](https://github.com/tmcw/strava-geojson): export _all_ strava data to geojson, in node & [on the web](http://www.macwright.org/strava-geojson/) 132 | * [gimme OSM](http://ustroetz.github.io/gimmeOSM/): Fetch geojson file by openstreetmap id 133 | * [country-levels](https://github.com/hyperknot/country-levels-export) Full planet GeoJSON extracts, based on ISO and FIPS codes. 134 | * [historical-basemaps](https://github.com/aourednik/historical-basemaps): Collection of georeferenced boundaries of world countries and cultural regions for use in mapping historical data on the world scale. 135 | * [99boundaries](https://github.com/TimMcCauley/nintynine-boundaries): Generate any maritime & land boundary in GeoJSON and other file formats or [download directly from the web](https://99boundaries.com) 136 | * [france-geojson](https://github.com/gregoiredavid/france-geojson): Outlines of regions, departments, arrondissements, cantons and communes of France (mainland and overseas departments) in GeoJSON format 137 | * [zg3d](https://data.zagreb.hr/dataset/zg3d-2022-3d-model-gz): 3D models of existing buildings in the City of Zagreb, Croatia in GeoJSON (CSV and Excel also available). 138 | 139 | ### serialization 140 | 141 | * [python-geojson](https://github.com/frewsxcv/python-geojson): serialize geojson to/from python datatypes 142 | * [rgeo-geojson](https://github.com/rgeo/rgeo-geojson): serialize geojson to/from ruby RGeo datatypes 143 | * [rust-geojson](https://github.com/georust/rust-geojson): serialize geojson to/from rust datatypes 144 | * [geojson-jackson](https://github.com/opendatalab-de/geojson-jackson): serialize GeoJSON to and from Java datatypes (based on [Jackson](http://wiki.fasterxml.com/JacksonHome)) 145 | * [mapbox-java](https://github.com/mapbox/mapbox-java): serialize GeoJSON to and from Java datatypes (based on [Gson](https://github.com/google/gson)) 146 | * [geojson-serializer](https://github.com/ancore/geojson-serializer): serialize Java with annotations as GeoJSON 147 | 148 | ### resources 149 | 150 | * [RFC 7946 – The GeoJSON Format](https://tools.ietf.org/html/rfc7946): the current GeoJSON standard by IETF 151 | * [GeoJSON.org](http://geojson.org/): the first specification, defining all the rules for GeoJSON structures 152 | * [More than you ever wanted to know about GeoJSON](http://www.macwright.org/2015/03/23/geojson-second-bite.html): a review of the concepts behind the specification in a more narrative format. 153 | * [geojson-invalid-geometry](https://github.com/chrieke/geojson-invalid-geometry): List of GeoJSON invalid geometry issues with example files. 154 | 155 | ## License 156 | 157 | [![CC0](https://licensebuttons.net/p/zero/1.0/88x31.png)](https://creativecommons.org/publicdomain/zero/1.0/ ) 158 | 159 | To the extent possible under law, [Tom MacWright](http://www.macwright.org) has waived all copyright and related or neighboring rights to this work. 160 | --------------------------------------------------------------------------------