smartRefract is an open source seismic refraction software that implements the GRM method (Palmer 1980). The software allows you to select the first arrivals, assign the dromochrones to the layers and view the section.
The software is complete but it is to be considered a working prototype. It is compatible with SEG2, SU and some SEGY formats.
The executables for Windows and Linux are located under the bin folder. Smartrefract require at least JDK 11.
Smartrefract is released under the term of the GPL v3 License.