Free data viewers for a variety of GIS data formats. These viewers allow you to display geographic data as well as perform some basic GIS functions.
The free GIS application offered by ESRI products. A lighter version of ArcView this application allows basic mapping and spatial querying.
ArcReader is a free, easy-to-use mapping application that allows users to view, explore, and print maps.
Christine GIS system is free GIS software allows you viewing and spatial querying vector and raster data, creating and editing tabular data, connect DBMS by ODBC, creating applications by integrated script language.
Geomatica Freeview is a standalone dataviewer that allows browsing of a variety of vector and raster based data including satellite imagery. You can also access attribute data within this viewer.
Free download of this data viewer by Cyze & Associates. This viewer was especially created for environmental scientists, geologists and engineers.
Natural Resources Database
The Natural Resources Database (NRDB) is a GIS-based tool for developing and distributing environmental databases. Data may be output as resource maps, graphs and reports using simple selections or powerful queries. The program supports the import and export of data to and from shapefiles and supports universal (UTM) and other transverse mercator projections. Data may also be imported from Excel files, Access databases and text files.
Shape Viewer is a free tool, which you can use to view ESRI Shapefiles.
Open and view a wide range of vector, image, grid, and geodatabase data types ranging from common ESRI SHP files to advanced spatial server databases. All format support is “native”, without any import procedure or format conversion. WMS, WFS, and WMTS services may be opened from the web as map layers. Comprehensive visual layer property, legend, and scale controls provide for deep customization of the map appearance, including colors, labels, fills, line styles, sybology, thematic presentation, pie charts, sublayers and layer hierarchies… Advanced coordinate system support with on-the-fly reprojection and 3,000 coordinate systems pre-defined. Attribute data grid table with advanced query and selection tools.
TNTatlas is a free Geodata viewing tool for Mac OS X and Windows. Geodata files currently supported include shapefiles, DWG, DGN, DXF, JPEG, JP2, TIFF, GeoTIFF, PNG, ECW, and MrSID formats. TNTatlas also has features for querying, measurement, printing, sketching of the displayed geodata.