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NationsTree / About

An open, independent database of every nation

Official statistics from the World Bank, United Nations agencies, the IMF and WHO, stored on our own servers, ranked with one public method and shown as living trees anyone can read.

Explore the countriesMethodology
217countries and territories
94indicators in 12 categories
713,882values with year and source
weeklyautomatic refresh · 1990–2025

NationsTree is built so that anyone — a student, a journalist, a professor or simply a curious reader — can understand how countries differ and change, and can cite the numbers. Each country is a tree: its height, crown, roots, dry branches and limbs are calculated from published statistics, with public rules and sources. Nothing on a tree is decoration and nothing depends on opinion.

Official sources only

Every value carries its year, series code, publisher and licence.

Same rules for all

One algorithm, public weights, versioned with the index.

Free to download

CSV for every indicator, read-only JSON API, checksums.

Independent

Support from readers never changes data, scores or rankings.

From a published number to a tree

1 · collectDownload

World Bank WDI and WGI, Wikidata; raw responses archived.

2 · storeKeep

PostgreSQL on our servers, with year, series and download date.

3 · rankCompare

World rank among countries with data for the same period.

4 · scoreIndex

Five pillars from percentiles, public weights.

5 · growTree

Height, crown, branches and roots drawn from the numbers.

Questions, corrections, partnerships

Messages are usually answered within two working days.

Contact

NationsTree.org is operated by Event Space Sp. z o.o., Olsztyn, Poland.

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