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mapshaper

Open Source

Editor for Shapefile, GeoJSON and TopoJSON — simplify, clip and convert in the browser.

License

MPL-2.0

About

mapshaper is a fast editor and converter for geospatial vector data. It runs in the browser and as a Node.js CLI, and is best known for best-in-class polygon simplification that preserves topology. It also handles clipping, dissolving, attribute joins and conversion between Shapefile, GeoJSON, TopoJSON and CSV.

Features

  • Topology-preserving polygon simplification
  • Converts Shapefile, GeoJSON, TopoJSON and CSV
  • Clip, erase, dissolve and filter operations
  • Attribute table editing and joins
  • Browser UI with local in-browser processing
  • Node.js command line interface

Details

Type
Web App
Pricing
open-source
License
MPL-2.0

Platforms

web

Languages

JavaScript

Data formats

Shapefile
GeoJSON
TopoJSON
CSV