VARD 2 is a free, creative commons tool for preprocessing historical corpora. Built in Java, it enables researchers to easily match up historic variant spellings with modern conventions. Though optimized for Early Modern English, other languages can be accomodated with user-supplied variant word lists.

Wmatrix is a free tool for corpus analysis and comparison. It provides a web interface for USAS and CLAWS, in addition to enabling standard corpus linguistic functions such as frequency lists and concordances.

Concordance is a commerical text analysis and concordance tool originally developed for the Humanities (formerly available via the University of Dundee School of Humanities). It offers features for text analysis, word lists, indexes, full concordances, word frequencies and more. A free trial version is available.

Collate was a program designed for scholars concerned with the difficulties of medieval vernacular traditions. It aimed to help scholars with the preparation of critical editions, and could collate up to a hundred texts. Collate was also capable of handling marked up text. It was available for Macintosh only, and could be purchased directly from its creator.

Micro-OCP (Oxford Concordance Program) was a major and historically important textual analysis tool for microprocessor computers. It enabled users to generate concordances, word lists and indexes, in addition to facilitating text markup in COCOA or other markup languages. Micro-OCP was written in FORTRAN, ran primarily in a DOS environment and could be ported to other operating systems including UNIX.

CLOC is a general purpose text analysis package originally offered by the University of Birmingham Computing Centre in the late 1970s, and now avaiable for download. It can generate concordances, collocates and word lists for a text. This tool was developed in Fortran.

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.

Parser 1.0 was a commercial program running in DOS for analyzing English-language text, aimed at academics and other researchers.

FISHER was a string-handling package for the FORTRAN programming language. It enabled researchers to manipulate characters and character strings with greater ease than FORTRAN permitted by itself.

Collocate was a tool for language-independent corpus exploration. It interpreted concordances by assessing the significance of co-occuring words.