Psychology researchers regularly find themselves needing to draw comparisons between diverse methodologies in their work. A common scenario is the need to compare questionnaires like the General Health Questionnaire (GHQ 12) and the Food Neophobia Scale (FNS). This process, known as harmonisation, can be an immensely laborious task without the right tools. Enter Harmony - a novel software tool designed expressly to make this task easier and more efficient; an aid that will greatly benefit those involved in the exploration of GHQ 12 vs FNS. Harmony utilises natural language processing and AI models to assist researchers in questionnaire harmonisation. It provides an easily navigable interface where users can select from an existing database or upload their own questionnaires in various languages. Then, by leveraging powerful AI models, it accurately compares items offering a percentage match between each component. This feature is invaluable in situations requiring comparisons between instruments like GHQ 12 vs FNS. The capacity for automating and hastening the harmonisation process cannot be overstated. In studies necessitating comprehensive analysis across multiple datasets, especially where the comparison is GHQ 12 vs FNS, Harmony is an indispensable resource. By enabling both intra-study and inter-study comparisons harmoniously, this software eases the workload for researchers, enhances the precision of their work, and offers a more streamlined and efficient pathway to robust, reproducible results.