# mapshaper

Canonical: https://gisforweb.com/tools/mapshaper/

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

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.

## Details

- Type: web-app

- Categories: editing, data-processing, vector

- Open source: Yes

- Pricing model: open-source

- License: MPL-2.0

- Platforms: web

## 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

## Project sources

- Website: https://mapshaper.org/

- Repository: https://github.com/mbloch/mapshaper

Directory descriptions are summaries. Verify current capabilities and terms with the project sources.