International Open Data Portals

Open data portals from national governments and international organizations. Many use CKAN or DCAT standards for interoperability, enabling cross-border data access and comparison of datasets across jurisdictions.

PortalCountry/OrgDatasetsAPILicense
data.gov.ukUnited Kingdom53,000+CKAN APIOpen Government Licence (OGL) v3.0
data.europa.euEuropean Union1,700,000+SPARQLCC0, CC-BY 4.0, and national licenses (varies)
open.canada.caCanada100,000+CKAN APIOpen Government Licence - Canada
data.gov.auAustralia100,000+CKAN APICreative Commons Attribution 4.0 (CC-BY 4.0)
World Bank Open DataInternational20,000+ indicatorsWorld Bank Indicators API v2Creative Commons Attribution 4.0 (CC-BY 4.0)
UN DataInternational60+ databasesUNdata API (SDMX-based)Varies by database (mostly open access for non-commercial)
OECD Data ExplorerInternationalThousands of indicatorsOECD SDMX REST APIOECD Terms and Conditions (free for non-commercial with attribution)

Portal Details

data.gov.uk

United Kingdom
https://data.gov.uk

The UK government open data portal publishing datasets from central government, local authorities, and public bodies. Uses CKAN as its underlying platform.

Datasets:53,000+
API:CKAN API
License:Open Government Licence (OGL) v3.0
Formats:CSV, JSON, XML, RDF, GeoJSON, KML
Categories:Government spending, transport, environment, health, education, crime

data.europa.eu

European Union
https://data.europa.eu

The official portal for European open data, aggregating datasets from EU institutions, agencies, and member state portals. Implements DCAT-AP for metadata interoperability.

Datasets:1,700,000+
API:SPARQL, CKAN API, DCAT-AP harvesting
License:CC0, CC-BY 4.0, and national licenses (varies)
Formats:CSV, JSON, RDF, XML, PDF, XLSX, GeoJSON
Categories:Economy, environment, transport, science, population, agriculture, justice

open.canada.ca

Canada
https://open.canada.ca/data/en

Canada's federal open data portal providing datasets from Government of Canada departments and agencies. Features proactive disclosure of government information.

Datasets:100,000+
API:CKAN API
License:Open Government Licence - Canada
Formats:CSV, JSON, XML, GeoJSON, SHP, KML, PDF
Categories:Science, government finances, demographics, agriculture, environment, transport

data.gov.au

Australia
https://data.gov.au

Australian Government open data portal powered by CKAN. Publishes datasets from Commonwealth agencies covering geography, environment, economy, and government operations.

Datasets:100,000+
API:CKAN API
License:Creative Commons Attribution 4.0 (CC-BY 4.0)
Formats:CSV, JSON, XML, GeoJSON, SHP, KML, WMS
Categories:Geography, environment, economy, government, health, education

World Bank Open Data

International
https://data.worldbank.org

Global development data from the World Bank covering 217 economies. Includes World Development Indicators (WDI), enterprise surveys, microdata, and financial data.

Datasets:20,000+ indicators
API:World Bank Indicators API v2
License:Creative Commons Attribution 4.0 (CC-BY 4.0)
Formats:JSON, XML, CSV, Excel
Categories:Poverty, health, education, infrastructure, governance, climate, economy

UN Data

International
https://data.un.org

United Nations statistical databases bringing together data from UN agencies including UNICEF, WHO, FAO, UNESCO, ILO, and the UN Statistics Division. Covers SDG indicators.

Datasets:60+ databases
API:UNdata API (SDMX-based)
License:Varies by database (mostly open access for non-commercial)
Formats:CSV, XML, SDMX, JSON
Categories:SDG indicators, population, trade, energy, education, health, environment

OECD Data Explorer

International
https://data-explorer.oecd.org

Economic and social data from OECD member countries (38 members). Covers GDP, trade, employment, education, health, and well-being indicators for developed economies.

Datasets:Thousands of indicators
API:OECD SDMX REST API
License:OECD Terms and Conditions (free for non-commercial with attribution)
Formats:CSV, JSON, SDMX-ML, Excel
Categories:Economy, employment, education, health, environment, trade, governance