A fast, simple tool to create, change, and publish maps.
Download the latest release of the geojson.io extension to add a 'geojson.io' button to applicable Gists and files on GitHub.
This site is an open source project.
This is open source software under the permissive MIT license. That license applies to the software and not the data you create with geojson.io - you can safely edit private, copywritten, open, or any other kind of data with this tool without the tool changing its legal status.
If you just want to share your map, you can click the 'Share' tab and send a link to friends, or grab HTML for embedding it on your website.
For more flexibility, download the GeoJSON data and you can use it with a number of different tools:
geojson.io doesn't support Shapefile import directly, but you can convert Shapefiles to GeoJSON first, and then upload GeoJSON to geojson.io.