| Ecological Metadata Language | XML application using modules to hold ecological metadata. | | |
| EXPRESS Data Manager VisualExpress | Data management | | |
| FGDC DTD | This is a document type definition for FGDC compliant metadata | | |
| FGDC ISO Metadata Standard Harmonization | | | |
| FGDCMETA.AML | This is an AML tool that extracts metadata from an ArcInfo file. | | |
| GCMD-DIF crosswalks to other standards | | | |
| Generic Knowledge-Base Editor | Tool for graphically browsing and editing knowledge bases across multiple Frame Representation Systems (FRSs) | | |
| Geonetwork | Set of tools for dealing with geospatial data and metadata. | | |
| GeoScience Markup Language (GeoSciML) | XML schema for data exchange over the Internet that incorporates the ability to represent geography (geometries e.g. polygons, lines and points using the OGC's GML specification) as part of the features that are being exchanged | | |
| Geospatial Web Services | Geospatial Knowledge Discovery via Intelligent Web Services | | |
| Getty Research Institute - Metadata Crosswalks | This crosswalk includes only a partial list of the elements for each standard, focusing on the areas of overlap, and is for planning purposes only. | | |
| IBM Integrated Ontology Development Toolkit | IBM Integrated Ontology Development Toolkit | | |
| ICOM (Intelligent Conceptual Modelling) | Freeware conceptual modelling tool | | |
| IHO S-57 Feature Type Catalogue | A registry developed following the procedures laid down in ISO19135 | | |
| InferEd | Gives user ability to navigate and edit RDF documents | | |
| Integrated Publishing Toolkit (IPT) | A data publishing tool for biological data used by GBIF | | |
| IRI Data Library Ontology | International Research Institute Data Library Ontology | | |
| IsaViz | IsaViz is a visual environment for browsing and authoring RDF models represented as graphs. | | |
| Isite Metadata Server | Isite software creates a server process on a networked server that can respond to queries against full-text, spatial terms, temporal terms, and text fields within metadata documents. | | |
| JENA JAVA API toolkit from HP Research Labs | Jena is a Semantic Web Framework. Is a JAVA library that facilitates JAVA programmers to handle RDF models, DAML and OWL ontologies. It has build in Vocabularies for Dublin Core and VCard. | | |
| Library of Congress Network Development and MARC Standards Office Crosswalks | Crosswalks between the fifteen elements in the Dublin Core Element Set and MARC 21 bibliographic data elements. | | |
| LinkFactory | LinkFactory® is specifically designed to build ontologies exceeding millions of concepts. | | |
| Live Access Server | The Live Access Server (LAS) is a highly configurable Web server designed to provide flexible access to geo-referenced scientific data. It can present distributed data sets as a unified virtual data base through the use of DODS networking. Ferret is the default visualization application used by LAS, though other applications (Matlab, IDL, GrADS, ...) can also be used. | | |
| M3Cat | A multi-standard and multi-lingual metadata cataloging tool. | | |
| Marine Environmental Data Information Catalogue | The Marine Environmental Data Information Catalogue (MEDI) is a directory system for marine related datasets and data inventories within the framework of the IODE system. | | |
