A program for gamma-ray spectroscopy or similar data analysis. Uses GTK for the user interface. Things should mostly work (I'm using this to analyze real data), but there's no warranty.

A list of features is here.

Detailed build instructions for Linux-based systems are here.

• Preferences are stored in a plaintext configuration file on a per-user basis at $XDG_CONFIG_HOME/specfitter/specfitter.conf (usually ~/.config/specfitter/specfitter.conf).
• When running the program from the command line, it is possible to automatically open files by specifying the filename(s) as arguments (eg. specfitter /path/to/file1 /path/to/file2).

The peak fitter is based on RadWare code by David C. Radford with some modifications. The RadWare source code can be obtained from this repository.