303,525 datasets indexed1,419 publishers
Open Data IndexThe index of open data about the Netherlands
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Foundation or organisation

4TU.ResearchData

Data repository of the 4TU federation (TU Delft, TU Eindhoven, University of Twente and Wageningen University & Research) for engineering and science research data.

data.4tu.nl

6,768datasets in our index
100%with an API or map service in the metadata
1sources explained
0examples with their data

What they publish

Counted across all indexes we harvest; modified between June 2017 and 30 October 2026.

Where it is

  • 4TU.ResearchData (via DataCite)6,768

Formats

CSV777XLSX731TXT661PDF453PY262PNG261ZIP224MAT187DOCX149NETCDF135

Subjects (per the publisher)

Earth and related environmental sciences1,087Mechanical engineering850Civil engineering764Computer and information sciences747Physical sciences607Biological sciences571Other engineering and technologies449Environmental engineering356

Sources explained

4TU.ResearchData

4TU.ResearchData (TU Delft, TU Eindhoven, Universiteit Twente, Wageningen University & Research)Netherlands, dataset

The data repository of the 4TU federation (TU Delft, TU Eindhoven, University of Twente and Wageningen University & Research). According to its homepage 12,494 datasets with 191,894 files and about 102 TB (16 October 2026), mostly engineering, water, coast, climate and traffic, often as NetCDF with OPeNDAP. Each dataset has a DOI with prefix 10.4121 and its own licence, usually Creative Commons. The software is called djehuty and has a Figshare-like API.

OpenAPIDownloadEducationClimate and environment
Reachable
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