WordSmith Tools is a commercial integrated suite of programs designed to analyze word behaviour in a text. It can be used to generate a list of all words or word clusters, concord, find keywords and more. This tool is recommended for publishers, language teachers and students, and language researchers. 

CLAWS (Constituent Likelihood Automatic Word-tagging System) is a free parts-of-speech tagging tool from Lancaster University. It has been continuously developed since the 1980s, has consistently achieved 96-97% accuracy, and has been applied to the over 100 million word British National Corpus. This tool is available for download in addition to an on-line 'trial' version.

The Oxford Concordance Program (OCP) was a major and influential early concordance program developed in the late 1970s and early 1980s at the Oxford University Computing Service. It was influnced by CLOC and COCOA, and aimed to be more user-friendly than its predecessors.

SUSS (Sunderland University SENSEVAL System) was an algorithm for word sense disambiguation developed for the inaugural SENSEVAL event in 1998.

SentiStrength is a tool for sentiment analysis available for free to academic users (with registration), in Java and Windows-optimized versions. It estimates the strength of sentiment in short texts, and can handle informal language. Strength is expressed in a scale of 1 to 5 for positive sentiments, and -1 to -5 for negative; it also includes an option for assessing neutrality. SentiStrength is available for multiple languages, with extensibility for languages and contexts not already included. According to the developers, SentiStrength has human-level accuracy for short English texts. Commercial users must purchase a license.

Poem Viewer is a free, web based experimental tool for exploring, analyzing and visualizing poetry based on linguistic characteristics, for use as a supplement to close reading. Users can choose from a list of pre-loaded poems, or paste a poem of their choosing into the provided text box.

word tree is a free, web-based tool for generating dynamic word trees from user-supplied texts. Users can paste their text directly in the box provided, enter a URL or Twitter handle in the search bar, or install the bookmarklet into their browser's bookmarks bar to run the tool on their current page. Within the visualization, users can generate trees for any keyword based on search or from a click in the interface, and can reverse the direction of the tree (forward or back from the keyword within the text).