Project Quintessence is an excellent tool for text-based data analysis. Quintessence, produced by UC Davis Datalab, draws on 60,000 texts to generate in-depth analytics for word meanings, word frequencies and text topics. The image here is a graph from the
Voyant-tools
Voyant Tools offer a web-based platform that allow one to upload a Word doc or PDF and generate visualizations of text-based data, including single text and corpus analyses. The image here depicts a Voyant Tools generated visualization of term analytics of the