KwicKwic is a fast and easy-to-use tool for investigating text data (documents). It was designed as a simple but powerful search tool for Linguists, but it can be used in many other fields. So, if you have a bunch of text files, and you need to find stuff in them, then KwicKwic is a great place to start. It's also a great companion to larger, more complex analysis tools. If you just want to jump into the text and start checking for particular words, phrases or structures, you can pop open KwicKwic, point it at the directory containing your document set, and start looking.
Although simple in concept, and even usage, KwicKwic packs a powerful set of features. The standard search allows wildcards, multiple words, proximities, an option to combine queries, and if needed, full access to Regular Expressions. The results are presented in a Key-Word-In-Context (KWIC) display for fast scanning of the data, and this can be sorted in a number of ways. With a quick click on the KWIC entry, the target phrase is presented in the context of the parent document. Any result can be saved in the included journal for later reference or linking back to the original data. As well, all work is instantly saved as a "project" which can be opened or closed at will with no loss.