This software allows you to convert geographic coordnates from one system to another. Its totally free and very efficient fro small datasets.It also presents a map that displays the location you have converted for confirmation. You can also chose a location on the map and convert its coordinates to suit your needs. See more and download following the link below.
QRod is the most widely used, free program for the design and prediction of the performance of Sucker Rod Beam Pumping Installations. Echometer has released an updated version QRod that allows the displays of both the input and output in either English or Spanish. The QRod version for the PC can be used free of charge. The software can be downloaded for installation and use on any numbers of PCs. QRod’s objective is to help the beam pumping system designer implement state of the art design technology without getting buried with details. The program uses a wave equation solution to accurately predict the surface dynamometer loads, gearbox torque and pump capacity, with a minimum amount of input. The effect of changing a parameter such as tubing anchor, stroke length, stroke rate, and pump diameter can be immediately seen in the dynamically updated plots. For updates, go to: (http://echometer.com/Software/QRod/tabid/130/Default.aspx)
QGIS is a user friendly Open Source Geographic Information System (GIS) licensed under the GNU General Public License. QGIS is an official project of the Open Source Geospatial Foundation (OSGeo). It runs on Linux, Unix, Mac OSX, Windows and Android and supports numerous vector, raster, and database formats and functionalities. For updates, go to: (https://qgis.org/en/site/forusers/download.html)
The GeoChemical Data ToolKIT, or in short GCDkit, is a system for handling and recalculation of whole-rock analyses from igneous rocks. It is written in R, a language and environment for statistical computing and graphics. For updates, go to: (http://www.gcdkit.org/)
This is a software with which you can create very good topographic three dimensional mapping projects by using aerial photogrammetric images obtained through different types of camera. The software has photogrammetric capabilities and appears to be a low cost solution compared to other systems of the same category. For updates, go to: (http://www.efoto.eng.uerj.br/)