Java-based tool from the NINEs project and Applied Research in Patacriticism for the comparison of texts:

“Juxta is a cross-platform tool for collating and analyzing any kind or number of textual objects. The tool can set any textual witness as the base text and can filter white space and/or punctuation. It has several kinds of visualizations, including a heat map of textual differences and a histogram that can expose the filtering results. When collations are being executed, Juxta keeps the textual transcriptions keyed to any digital images that may stand behind the transcriptions as their documentary base. Juxta also allows the collations and analyses to be annotated and saved for further use.” (from Juxta site)

Starter Links: Juxta home | NINEs Tools & Interfaces