License

A list of licenses and credits for the tools provided by this service.

Open Source Software

The following tools are based on original open source projects. We are grateful to the developers of each project.

  • Color Brewer — Apache-2.0 License (Cynthia Brewer, Mark Harrower, The Pennsylvania State University)
  • Cytoscape — MIT License (Cytoscape Consortium)
  • D3.js — ISC License (Mike Bostock)
  • Data Illustrator — MIT License (Georgia Tech)
  • (Geo) Data Merger — MIT License (Fabio Berta)
  • GeoJSON.io — ISC License (Mapbox)
  • Gephi Lite — GPL-3.0 License (Gephi / OuestWare)
  • iwanthue — MIT License (Sciences Po médialab)
  • JSON Crack — Apache-2.0 License (Aykut Saraç)
  • kepler.gl — MIT License (Urban Computing Foundation)
  • Leonardo — Apache-2.0 License (Adobe)
  • Mapshaper — Mozilla Public License 2.0 (Matthew Bloch)
  • OpenRefine — BSD-3-Clause License (OpenRefine contributors)
  • Parallel Coordinates — BSD-3-Clause License (Kai Chang)
  • RAWGraphs — Apache-2.0 License (DensityDesign Lab, Politecnico di Milano)
  • Sankeymatic — ISC License (Steve Bogart)
  • Tabula PDF — MIT License (Manuel Aristarán, Mike Tigas, Jeremy B. Merrill)
  • Tilegrams — ISC License (Pitch Interactive)
  • Vega Editor — BSD-3-Clause License (UW Interactive Data Lab)
  • Voyager 2 — BSD-3-Clause License (UW Interactive Data Lab)
  • Easings Cheat Sheet — GPL-3.0 License (Andrey Sitnik, Ivan Solovev)
  • Map Tile Browser — MIT License

dataviz.jp Original Tools

The following tools are originally developed by dataviz.jp.

  • ADS-B / AIS Visualization
  • Aozora Bunko Ruby Remover
  • Address to Lat/Lon Converter
  • Buffer Generator
  • Cartogram Japan
  • Cartogram Prefectures
  • Choropleth Japan
  • Choropleth Prefectures
  • Coordinate System Converter
  • GTFS Network Data Converter
  • Lat/Lon Formatter
  • Mapbox Classic Style Generator
  • QuickChart UI
  • Shift JIS / UTF-8 Encoding Converter
  • SVG / GeoJSON Converter
  • SVG Gradient Editor
  • SVG Texture Editor
  • Word Cloud
Last updated on 2026-04-12