Roadmap

• AI-powered automatic chart selection and visualization tool
• Project sharing within organizations

And more. This list will be updated as needed.

• ✅ Public sharing feature for created interactive visualization content
• ✅ CSV support for data used in Cytoscape, Gephi, and similar tools

Changelog

May 7, 2026

Prepared tools.data-viz-lectures.com as the public overview site for the data visualization and data preparation tool services.

May 4, 2026

Moved to a new pricing structure that treats data visualization and data preparation as separate service scopes.

April 21, 2026

Separated the authentication and account dashboard domains.

• Sign-up and login use https://id.data-viz-lectures.com/ as the shared entry point.
• The data visualization account dashboard is available at https://app.dataviz.jp/.
• The data preparation account dashboard is available at https://app.dataprep.jp/.

You will be redirected automatically, but please update your bookmarks.

April 16, 2026

• Added new tool: “Bar Chart Cross-Filter.” Upload CSV or TSV data and click across multiple bar charts to cross-filter and explore your data — a BI-style capability now available as a standalone tool.

April 12, 2026

• Localized checkout and sign-up flows for English users. The entire subscription experience — from pricing to payment — is now available in English.
• Introduced USD pricing for international users. Plans now start at $17/month for individuals and $72/month for small teams.
• Renamed “Enterprise Plan” to “Group Plan” for consistency across billing and pricing pages.

April 9, 2026

• Launched multi-user plans for teams and departments. Choose from plans for 5, 10, or 30 members.

April 8, 2026

• Fixed a display issue around the common header that occurred in some tools.

April 5, 2026

• Added new tool: “Japanese-Western Calendar Converter”

April 3, 2026

• Launched the “Data Library” page. Accessible from the navigation bar, it lets you browse and search sample datasets available across tools, then launch a compatible tool with the selected data.
• Added a “Sample Data” button to each tool’s toolbar. You can now browse and load compatible sample datasets directly from within the tool.

April 2, 2026

• The account dashboard domain has been changed from auth.dataviz.jp to app.dataviz.jp. You will be redirected automatically, but please update your bookmarks.
• The tools listing page has been moved from the public site https://www.dataviz.jp/ to the members-only page https://app.dataviz.jp/.

March 31, 2026

• Added a corporate number database that can be called from OpenRefine’s “Reconciliation” feature

March 24, 2026

• Added new tool: “Draw-to-Answer Line Chart”

March 23, 2026

• Added new tool: “3D Surface Chart”
• Added public sharing feature to Parallel Coordinates

March 18, 2026

• Added CSV format and Shift JIS data file support for Gephi and Cytoscape
• Added a spiral chart example using RawGraphs to the showcase

March 17, 2026

• Added Shift JIS data file support for RawGraphs, Parallel Coordinates, Voyager, Word Cloud, and Data Illustrator

March 14, 2026

• Added new tool: “Parallel Coordinates”

March 12, 2026

• Removed unnecessary line breaks within cells in Tabula
• Added new tool: “Text Entity Extraction Tool”

March 11, 2026

• The service was officially launched.