# mapbox/geojson.io

A quick, simple tool for creating, viewing, and sharing spatial data

Repository: https://github.com/mapbox/geojson.io
Canonical: https://ross.abutalabs.com/products/geojsonio
Homepage: http://geojson.io/
Language: TypeScript
License: ISC
License Family: permissive
Topics: geojson
Last push: 2026-08-17T20:17:11+00:00

## Health v2 (maintenance only)
Score: 76/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 35, longevity 100
- inputs: {"age_days": 4863, "days_push": 16, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2234, forks 641 (observed 2026-08-28T04:06:29.242297+00:00)

## What it is
geo.io is a browser-based editor for creating, viewing, and sharing spatial map data, originally built by Mapbox in 2013 and overhauled in 2026 with a modern React/TypeScript codebase based on Placemark Play. It supports drawing geometries on an interactive Mapbox GL map and importing/exporting GeoJSON, KML, CSV, and Shapefile formats.

## Use cases
- draw polygons on a map and export as geo
- convert kml to geo in the browser
- quickly visualize a geo file
- edit feature properties of spatial data
- create points lines and polygons for a mapping project
- share map data with a colleague
- convert csv coordinates to geo

## When to choose
- you need a fast, no-install browser tool to create or edit GeoJSON
- you want to convert between GeoJSON, KML, CSV, and Shapefile without GIS software
- you need to visually inspect or share small spatial datasets

## When to avoid
- you need heavy-duty desktop GIS analysis like QGIS or ArcGIS
- you need offline editing or large-dataset processing
- you require programmatic headless GeoJSON manipulation (use a library instead)

## Facets
- artifact type: application
- maturity: active
- function: geospatial, editor, gui, data-visualization
- domain: web-development, developer-tools
- platform: browser, cross-platform
- tags: geo, map-editor, gis, spatial-data, mapbox-gl, kml, shapefile, csv-import, maps, geospatial, web-server, nodejs

## Member repositories
- mapbox/geojson.io (main) score 76

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:29.242297+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:44:23.124204+00:00, confidence not recorded.
  - readme: https://github.com/mapbox/geojson.io (fetched 2026-08-28T04:06:29.242297+00:00, sha e5b52760f495)
  - homepage: http://geojson.io/ (fetched 2026-08-29T10:25:00.741352+00:00, sha bb9558d9dbc1)
  - registry_npm: https://registry.npmjs.org/geojson.io (fetched 2026-08-29T10:25:00.750335+00:00, sha f7109dea9750)
- Data as of 2026-08-30T08:39:29.467469+00:00.