DEM Masher

DEM Masher is a graphical user interface (GUI) for GDAL commands for manipulating digital elevation models (DEMs) in various formats. DEM Masher requires GDAL to be installed on your computer in order to operate. Click here to go to the download page for GDAL. With the app, you can:

Combine DEMs from different sources in different formats and resolutions into a single DEM
Change DEM resolution and crop DEMs to your desired size.
Set all elevations below a user specified values to the “No Data” value
Batch combine multiple DEMs into a single DEM
Handle DEMs with elevations in feet (state agencies, I’m looking at you) and convert them to elevations in meters
Save your DEM in GridFloat, TIFF, or IMG formats in either Geographic or Spherical Mercator projections
Visualize your DEM as a hillshade or color relief image with or without contours and save it with georeferencing metadata, either embedded in the case of TIFF format or as a world file in the case of PNG or JPG formats
Translate vector GIS formats (Shape, Spatialite, or GeoDatabse) to or from GeoPackage format (.gpkg). Export cotours in the vector format of your choice

Download for Mac

Download for Windows

Download for Linux

DEM Masher comes with a very nice and complete users manual. Just look under the Help Menu!