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Become a sponsor to Matthew Bloch

Mapshaper is free, open-source software for editing map data — used by cartographers, journalists, students and hobbyists worldwide.

What your contribution supports:

  • Development time — bug fixes, new features, performance improvements
  • Responding to user issues and requests

Want to help shape the roadmap? You can take a one-minute survey telling me what you'd like to see improved.

— Matthew Bloch, maintainer

Featured work

  1. mbloch/mapshaper

    Tools for editing Shapefile, GeoJSON, TopoJSON and CSV files

    JavaScript 4,111

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