WordStatix is a free and multiplatform software application for creating concordances. The document may be structured in chapters, numbers, or in any another way. The tool allows you to track specific words by prefix or suffix, to skip those which are meaningless (like articles or prepositions), to create simple statistics of the recurrence of all words or of some of them, possibly within the different sections of the document, and to create three kinds of diagrams to visualize the statistical data in different ways.
