Apache UIMA (Unstructured Information Management application) is a software system for analyzing large amounts of unstructured data, such as a plain text document, and identifying entities, such as persons, places, organizations, or relations between entities. Discrete components (written in Java or C++) may be used within the application, such as language identification or entitiy detection. Each component provides self-describing metadata via XML descriptor files.

Mallet is a Java based library and command line framework that provides statistical and machine learning tools for use with natural language processing.

Meandre is a graphical programming language for creating text analysis flows, built on top of the Seasr infrastructure. Meandre uploads its flows to a Seasr server where they can be accessed and used by anyone who can access the server.