Software

Open Data Portals

• GeoNetwork (Java)
• CKAN (Python)
• DKAN (Drupal / PHP)
• Datahub (Java)
• Huwise, formerly knonw as OpenDataSoft (Cloud Service)

Open Science Portals

• Dataverse (Java)
• Janeway (Python)

Statistics portals

• .Stat Suite
• FMR Workbench (metadata management statistics)

Geodata

• QGIS (GIS Desktop)
• PostGIS (extension for Postgres relational database)
• GeoTools (Java GIS toolkit)
• MapShaper (online file transformation)

Legislation

• LEOS (online tool for writing / editing legislation)

REST

• PostgREST

RDF / Linked Open Data

Libraries

• Apache Jena (Java)
• Comunica (Node.js)
• Eclipse RDF4J (Java)
• EasyRDF (PHP)
• Hardf (PHP)
• N3.js (Node.js)
• Redland RDF (Python)
• RDFLib (Python)

Tools

• OpenRefine (data cleaning and transformation)

Medical imaging

• Othanc (DICOM)
• Cytomine (AI / image classification)