World choropleth generator
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World choropleth
Compare a value across countries by filling each country with an intensity tied to its data value. Create a private, publication-ready world choropleth directly in your browser without transmitting sensitive rows off-device. Data is processed locally on your hardware with zero server uploads, enabling instant export to SVG, PNG, and Excel data.
Edit the data, then export.
Everything runs in your browser. Your data is not uploaded.
Data
Paste tab-separated data from Excel or edit the cells directly.
Paste or import table data
Paste a header row, or choose a local CSV/TSV file. Files are read in this browser and capped at 500 rows.
Appearance
Preview
Sample preview of the example data. The live chart takes over as soon as you start working.
SVG, PNG, and Excel exports are generated locally in this browser. PowerPoint export is temporarily unavailable while its dependency path is reviewed for a high-severity image parser advisory.
Multi-Variable Correlation & Flow Mechanics
A world choropleth map visualizes spatial data across countries by shading each geographic region with a color tied to a statistical metric. It uses bundled Natural Earth properties to map your dataset to specific geographic boundaries and renders the polygons dynamically. Trendalyzer processes all geographic matching and rendering entirely locally in your browser, guaranteeing your data is never uploaded to external servers.
Coordinate & Matrix Data Structure
Format input columns for world choropleth with explicit headers and numerical measurements. Verify that rows represent discrete categories or observations without unformatted symbol artifacts.
Sample Observation Matrix
| Country | Renewable energy (%) |
Correlation Traps & Analytical Guidelines
- Ensure sufficient visual distinction for world choropleth marks across standard and high-contrast viewports.
- Align text labels horizontally whenever possible to improve cognitive readability for world choropleth elements.
- Double-check scale boundaries and zero-anchors before exporting world choropleth presentation artwork.
- Data shape
- Country name and numeric value columns; names are matched to bundled Natural Earth country properties
- Exports
- SVG, PNG, and Excel data; PowerPoint export is temporarily unavailable pending dependency review.
How it works
You edit a table in this page. The renderer draws an SVG from those rows in your browser, then you can download SVG, PNG, or Excel data. The table is not uploaded to any external processing server.
Frequently asked questions
Why must choropleth map data always be normalized?
Raw counts make large, populated regions look artificially intense. Normalizing (e.g. per capita or % of total) reveals true geographic rates.
Related tools
Reviewed 16 August 2026.