View GeoJSON files in your browser
The plain JSON of web maps. Open a GeoJSON right here on a map and click any feature for its properties. The file never leaves your device.
Or drop it anywhere on this page
What you'll see
Your file opens on a map, framed to fit, its layers drawn over OpenStreetMap's streets and what it holds listed beside it.
- OpenStreetMap, dark or light • Flat or a globe
- Every layer and feature in a list • Search their names and fields
- Click a feature for its fields • Measure distances
- Export • PNG, GeoJSON, GPX, KML and CSV
About GeoJSON
A group of developers wrote GeoJSON in 2008 as a simple way to put map features in JSON, and the IETF made it RFC 7946 in 2016. Web maps, GitHub, QGIS, open data portals and most mapping libraries read and write it.
A GeoJSON is a FeatureCollection of features, each a geometry, a point, a line, a polygon or several of them, with properties of any kind. Coordinates are longitude and latitude, though older files may name another system with crs.
Filepeek draws it over OpenStreetMap, colored by simplestyle's stroke, fill and marker-color when a feature has them. Click a feature for its properties, search them, measure a distance, and save the features as KML, GPX or CSV, or the view as PNG. A .json file opens on the map too, when its top object is a FeatureCollection.
GeoJSON
.geojson
Format
- MIME type
- application/geo+json
- Made by
- An open working group, then the IETF's RFC 7946
- Released
- 2008
Inside the file
- Holds
- Features with properties
- Shapes
- Points, lines and polygons
- Coordinates
- Longitude and latitude
- Built on
- JSON
Opens in every browser
Filepeek opens GeoJSON files on a map in Chrome, Edge, Firefox and Safari. On their own, browsers download them.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Apps that open GeoJSON
- WindowsQGIS and ArcGIS Pro
- MacQGIS
- iPhone and iPadNo app built in shows it on a map
- AndroidNo app built in shows it on a map
Questions
How do I open a GeoJSON file?
Drop it on this page or choose Peek a GeoJSON. It opens on a map, with its features listed beside it and their properties a click away.
Can I open a GeoJSON too big for my editor?
Yes. Filepeek reads it in the background and draws up to 3 million points on a computer and 750,000 on a phone, and Show details says when it left some out.
Can I convert GeoJSON to KML or CSV?
Yes. Open it, choose Export, then Save the features as KML, GPX or CSV. The CSV gives each feature its properties and where it is.
Does it use simplestyle colors?
Yes. A feature's stroke, fill and marker-color draw it in those colors, as GitHub and geojson.io do.
Is my file uploaded to draw the map?
No. Your file is read in your browser and stays there. The map under it is OpenStreetMap's, fetched as tiles through Filepeek's own server, which only learns which part of the world is on screen and keeps nothing.