Esri software

The ArcGIS Editor for OpenStreetMap is a free, open source add-on for ArcGIS for Desktop that helps you become an active member of the growing OpenStreetMap (OSM) community. OpenStreetMap is an open and freely available database of geographic data. The editor makes it easy for you to download OSM data, make changes to the dataset, and contribute those changes back to the entire OSM community.

Esri Geoportal Server is a free, open source product that enables discovery and use of geospatial resources including datasets, rasters, and Web services. It helps organizations manage and publish metadata for their geospatial resources to let users discover and connect to those resources. The Geoportal Server supports standards-based clearinghouse and metadata discovery applications.

ArcGIS Viewer for Flex provides a smart, intuitive framework for looking at and interacting with maps. It is a configurable web application that allows you to easily build your own custom mapping application in just a few minutes, with no programming required.