mbloch/mapshaper

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

4168 stars · 580 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Mapshaper is a JavaScript tool for editing and converting geospatial vector data formats such as Shapefile, GeoJSON, TopoJSON, GeoPackage, GeoTIFF and CSV. It is available as a command-line program, a Node.js library, and an interactive web app that processes data entirely in the browser.

Use cases

• simplify GeoJSON or TopoJSON polygons for web maps
• convert Shapefile to GeoJSON from the command line
• clip, erase, dissolve or filter map layers
• edit attribute data in geospatial files
• reproject vector data
• merge or split shapefile layers
• clean up slivers and overlapping polygons
• run geospatial data processing in a data pipeline

When to choose

• you need fast, scriptable editing or conversion of vector GIS formats
• you want to simplify large map files for web visualization
• you prefer a browser-based tool that keeps data private
• you need reproducible geospatial transformations in CI or scripts

When to avoid

• you need full desktop GIS capabilities like advanced symbology or raster analysis
• you require a maintained permissive license for redistribution (license is non-standard)
• you need heavy 3D or raster geoprocessing beyond GeoTIFF basics

Facets

cli-tool · maturity active

geospatial data-visualization cli parser image-processing developer-tools cli browser cross-platform gis shapefile geojson topojson geopackage flatgeobuf geoparquet geotiff kml csv simplification cartography web-app svg geospatial maps data-engineering command-line nodejs web-server

Member repositories

For agents

markdown · JSON · MCP: product_card(name="mbloch/mapshaper")