Abstract: A software application for analyzing time of flight data obtained from chopper spectrometer is introduced. This chop analysis package, JavaCAP, is written in Java to take advantage of its platform independence and internet accessibility. Multiple large datasets, each containing about 1 000 spectra, can be examined for removal of noise and contamination. Appropriate sample, background and calibration runs are combined and normalized. Afterward, data from detector groups are binned and converted into various scattering functions in momentum and energy transfer space. The resulting datasets can be analyzed further by users with additional methods. The results can also be saved as formatted tables in text files or pasted into other applications.