Global Map Builder

Select countries by region, then choose whether to show only country boundaries or add one internal administrative detail layer.

Map detail

ADM0 onlySelected country polygons and boundaries only. ADM0 + ADM1Selected countries plus states, provinces, regions, or similar first-level subdivisions where available. ADM0 + ADM2Selected countries plus county/district-level boundaries where available. Loads country-by-country to stay lighter.

ADM0 only mode selected.

Base layers

Show world outline layer

Country boundaries for selected countries remain visible in every detail mode.

Data layer

No data layer Plot locations as markers Shade selected regions by value

Active map layers

Show region shading

Show markers

Turn on a data workflow to paste locations or region values. Markers and shading can be displayed together after they are created.

Countries

0 countries selected 0 ADM1 features 0 ADM2 features

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Sources

Countries: World Atlas / Natural Earth 110m. ADM1: Natural Earth 10m Admin 1. ADM2: U.S. counties via us-atlas; additional selected countries load first from hosted simplified TopoJSON files, then fall back to geoBoundaries if needed. Marker geocoding uses the hosted /api/geocode cache endpoint when available, with browser-side caching and safety guardrails.

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I have place names / addresses I have latitude / longitude

Tip: click the first cell, then paste a range copied from Excel. For geocoding, include city/state/country where possible. Public geocoding is intentionally paced to avoid overloading the service.