303,525 datasets indexed1,419 publishers
Open Data IndexThe index of open data about the Netherlands
Open Data Index›Publishers
Central government

Nationaal Archief

The archive of central government, parliament and the Dutch East India Company. Shares over 7,400 finding aids as open data (CC0) via OAI-PMH, with links to scans.

www.nationaalarchief.nl

nationaalarchief.nl
Screenshot of nationaalarchief.nl
101datasets in our index
80%with an API or map service in the metadata
2sources explained
2examples with their data

What they publish

Counted across all indexes we harvest; modified between August 2020 and 27 October 2026.

Where it is

  • Open Archieven47
  • NDE Datasetregister34
  • data.overheid.nl20

Formats

XML40SPARQL34HTML11CSV2ZIP1

Subjects (per the publisher)

Cultuur en recreatie17Staat van dienst2Pensioenregister2Benoemingen2Verkaufsbücher2Interneringskaarten2Sententies2Uitleveringsverzoek2

Sources explained

National Archives of the Netherlands, finding aids and scans

Nationaal Archief (agentschap van het ministerie van OCW)Netherlands, inventory number

The National Archives publish their finding aids as open data (CC0) via OAI-PMH, in EAD XML. On 16 October 2026 there were 7,411 finding aids (7,442 sets), each with the description of the archive and its inventory numbers. Where scans exist, each inventory number has a METS file linking to the images (public domain or CC0). Finding aids made by third parties (2.8 percent) are not open data.

OpenAPIDownloadHeritage and cultureGovernment
Up to date
updated 1 hours ago

NDE Dataset Register

Netwerk Digitaal Erfgoed, beheerd door het Nationaal ArchiefNetherlands, dataset

The Dataset Register of the Dutch Digital Heritage Network is the catalogue of Dutch heritage data: archives, museums, libraries and municipalities register their dataset descriptions, the register harvests and validates them and loads them into a SPARQL endpoint. On 16 October 2026 it held 3,401 datasets with a valid registration from 159 publishers. The register contains descriptions, not the data itself: each description points to downloads or APIs (OAI-PMH, SPARQL, IIIF) at the institution. It is maintained by the National Archives.

OpenAPISearch serviceHeritage and culture
Up to date
updated 4 hours ago

Examples with their data

National Archives finding aids by year of last change: 2024 is the largest part, 58% in October 2026

Heritage and culture · oktober 2026

Heritage datasets in the NDE Dataset Register by licence: most CC BY 4.0 (1,833 datasets), then CC0 1.0 and CC BY-SA 4.0

Heritage and culture · oktober 2026

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