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Geoserver is a fully functional open source WFS-T and WMS server that follows the OGC open standards. With Geoserver you can publish data as maps/images (using the WMS), as actual data (using the WFS), and allow users to update, delete, and insert features (using the WFS-T). GeoServer's focus is ease of use and support for open standards, in order to enable anyone to quickly share their geospatial information in an interoperable way. More information on specific features of GeoServer can be found here .