StreamGraph - This is a visualization tool using color to depict the change of the frequency of words. This tool is designed to be used with a corpus that has multiple documents and where the order of the documents is meaningful, it can also be used with only one document that gets automatically segmented.
Summary - This is a tool of a simple but textual overview of the current corpus. This tool provides a simple view but with very rich textual overview of the current corpus, such as number of words, number of unique words, longest and shortest documents, highest and lowest vocabulary density, average number of words per sentence, most frequent words, notable peaks in frequency, and distinctive words.
(Source: https://voyant-tools.org/docs/#!/guide/start)
