Scribe, now in version 3.5, is a free note-taking program available for both PC and Mac. Aimed particularly at historians, this program allows researchers to create digital note cards for managing sources, research notes, contacts, images, glossaries, outlines, timelines and more. Furthermore, it enables organization, keyword indexing, searching, linking and cross-referencing of all entries. Entries can be entered directly or imported from online catalogues such as Amazon.com. Information entered in Scribe can be exported directly to Zotero in addition to assembling, printing or copying formatted bibliographies directly from the program. Articles can be stored directly within the program, enabling researchers to search out and highlight particular words within the text in addition to the relevant researcher notes.

Flamenco Search is a downloadable web-based interface from the UC Berkley School of Information based in Python, designed to run on a server. It streamlines the browsing of large collections. It is particularly valuable for items such as documents or images, enabling website visitors to explore content via a hierarchy of categories and subcategories called facets. Users can assign keywords and metadata which is then used to guide site visitors to the choices that best meet their interests, while allowing them to refine or expand their query and remain oriented in relation to the rest of the collection.

Apache OpenNLP is a free, open source toolkit for processing natural language text, based on machine learning. It includes common natural language processing functions such as tokenization, sentence segmentation, part-of-speech tagging, named entity extraction, chunking, parsing, and coreference resolution.

Processing is a free, open source programming language and development library for the visual arts. It is a software sketchbook, a way to visually learn programming fundamentals, and a tool for creating finished professional work, including mapping networks, textual analysis and producing visualizations. It runs under Windows, OSX and Linux environments, and can export graphics and applets in a variety of formats.

GATE (General Architecture for Text Engineering) is free, open source software offered by the University of Sheffield since 1995. It provides a framework for users to gather a corpus, apply an ontology to it, develop markup, automate the application of the markup to the corpus and add tools such as knowledge facet search, ontology browsing or graphing.