CasualConcordence is a program designed for Mac OS and runs text concordance that allows you to analyze your own collection of text files (primarily English, though users reported success with other European languages). It also comes with additional tools that allow you to tag, transcribe, and extract text.
GloVe is a an unsupervised learning algorithm for obtaining vector representations for global word-word co-occurrence in a text corpus to show interesting linear substructures of the word vector space. This tool provides an effective method for measuring the linguistic or semantic similarity of the corresponding words and reveals relevant words that may lie outside of an average human's vocabulary. For example, the word frog can result in frogs, toad, litoria, leptodactylidae, rana, lizard, and eleutherodactylus.
ImagePlot is a free software tool from Software Studies Initiative that visualizes collections of images and video of any size.
This tool does all three components of data processing: extraction, transformation and loading. Users can create nodes for visualization as well as a platform for analysis, reporting, and integration for machine learning. It is easy to extend and to add plugins and other functionality. Plenty of data integration modules are already included in the core version.