Dataoverheidnl

Dataoverheidnl is a Dutch government open data portal that aggregates datasets published by national, regional, and local authorities in the Netherlands. Its purpose is to promote transparency, support research and innovation, and enable reuse of public data. Datasets are described with standardized metadata and made available in machine-readable formats such as CSV, JSON, XML, and RDF, with supported programmatic access through APIs.

Metadata and interoperability follow national and European standards, including the DCAT-AP-NL profile. Most datasets are released under open licenses, commonly CC BY 4.0 or CC0, allowing broad reuse with attribution or without constraints beyond basic licensing notices. The portal emphasizes data quality, provenance, and versioning to support reproducibility.

Dataoverheidnl operates under a government information policy framework and is maintained by a designated public body. Submitting agencies follow publication guidelines that address privacy, security, and data governance. Privacy considerations lead to redaction or aggregation of personal data, with clear notices about data limitations and uncertainties.

Users include journalists, researchers, developers, and policymakers who build dashboards, conduct analyses, or create applications based on public data. The portal is part of a broader open data ecosystem in the Netherlands and links to related portals and catalogs at different government levels to facilitate cross-sector reuse.

See also: open data, CKAN, DCAT-AP-NL, Netherlands government portals.