Mapshaper

github.comtool

Web application to simplify shapes, edit attribute data, clip, erase, dissolve, filter, etc. Supported file formats: Shapefile, GeoJSON, TopoJSON, and CSV files.

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ArcGIS Developer

added

2026-10-10

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ArcGIS Developer › Data conversion tools: “Web application to simplify shapes, edit attribute data, clip, erase, dissolve, filter, etc. Supported file formats: Shapefile, GeoJSON, TopoJSON, and CSV files.”