A web based Metadata Catalog Server for data description and discovery. Supports both generic and geospatial data discovery. It implements international standards (e.g. ISO19115/19139/19119, ISO19115-3, DCAT-AP, CSW 2.0, OGC API Records). It originates from the United Nations and is used by many governments as geoportal software.
Active development and discussion takes place on GitHub and OSGeo Discourse.
GeoKettle is a powerful, metadata-driven spatial ETL (Extract, Transform and Load) tool dedicated to the integration of different data sources for building and updating geospatial databases, data warehouses and services.
It is a Client Application developed in Java that sends simultaneous OGC CSW requests to several metadata catalogues (ebRim or ISO 19115/19119 profile), processes the responses and shows them in a single web page.