Montlake FindUnique simply identifies the set of words used within any document to which it is pointed. You can enter up to 32K from the clipboard, or you can point the application to a particular text file representing the document you want to process.

Additionally, the application calculates how many times each word has been used within that body of text.

A kid at work told me that this is the program that they all learn how to write in the first grade, but not everyone has gone to the first grade, so there might be folks out there who could use this. Although I can no longer remember why I wrote it, I've enjoyed seeing these lists of unique words in the various documents I've examined over the years. Sometimes, you see misspellings or word mis-use, but mostly it's just interesting. Or whatever.

As a tool of linguistic (or even literary) analysis, it would undoubtedly require more features, but it's fun as it is. For example, I can open the text of Moby Dick, read it, find the set of unique words (about 17,000), determine how many times each word was used, and then sort the list alphabetically, all in about a minute.

See the support site, for more details.