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. You can also connect directly with the companies supporting the...
OSGB Web Map Tools is a set of software code and installation instructions that will enable web developers to produce dynamic mapping web sites using Ordnance Survey map data on the internet.
GeoAr intends to be a rich client for WMS and WFS services. It's developed on LZX (OpenLaszlo), so it would serve dhtml(near future) and flash to the user's browser giving the chance of select between them, but having only one server's cource code.