Show HN: Dataviz, ranked daily from GitHub, NPM, PyPI and CRAN

A new community-curated directory provides a ranked list of 291 data visualization tools sourced from GitHub, NPM, PyPI, and CRAN. The project includes an MCP server to allow AI agents to access and recommend these tools programmatically.
Why it matters
It simplifies the discovery of specialized development tools and integrates directly with AI workflows to improve developer productivity.
An open, community-curated directory of 291 charting libraries, mapping toolkits, graph visualizers, dashboards and more, ranked with live GitHub, npm, PyPI and CRAN data refreshed daily.
Search Popular: JS charting · Python · React · JS maps · R · JS graphs & networks
Each dot is one tool, placed by its GitHub stars on a log scale and grouped by category; the most-starred tool in each row is labeled. Hover for details, click to open.
Web app for creating and sharing Sankey diagrams of flows and budgets without code.
JavaScript library for producing dynamic, data-driven visualizations with SVG, Canvas and HTML.
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