SupraFit provides a linear regression tool for experimental data, that can be used to fit several linear functions to experimental data. The data points are continuously divided: In case of three functions, the first function is fitted using the first n 1 ...n i data points, the next functions uses the next n i+1 ...n j data points and the last functions uses the remaining n j+1 ...n N data points. The maximal number of functions is N/2, where each function is described by two points. The currently implemented method tests all available combinations and returns an ordered list. One field of use will be shown for NMR titration, to create Mole Ratio plots. Another application will be shown within the ITC examples.