Stanford Named Entity Recognizer is a free Java implementation for the recognition of proper names and other nouns and a part of the Stanford Natural Language Processing toolset. It also includes person, location and organizational recognition. This tool can be used with English or German text.

Stanford Part-of-Speech Tagger is a free Java implementation for the recognition of parts of speech, and a part of the Stanford Natural Language Processing toolset. It reads text and assigns parts of speech to each word such as noun, verb or adjective. This tool can be used with English, French, Arabic and German text.

Stanford Parser is a free Java implementation for the statistical parsing of text, and a part of the Stanford Natural Language Processing toolset. This tool can be used with English, Chinese, German and Arabic. A demo web browser version is also available. 

RapidMiner is an open source data mining tool with a GUI interface, available in both a free, unsupported 'community version' and a for-pay, fully supported 'enterprise edition'. It utilizes a standardized XML interchange format for processing, and is compatible with common relational databases and spreadsheet applications.

TextSTAT is a free text analysis tool offered by Niederländische Philologie, FU Berlin. It is a simple program designed to accept plain text, HTML, Word and OpenOffice files to produce word frequency lists and concordances, and versions are available in English, German, Dutch, Portugese, Spanish, French, Italian, Galician, Finnish, Polish and Czech. TextSTAT also includes a web spider and news reader for adding web pages and news to a corpus.

TnT, which is short for Trigrams'n'Tags, is a statistical part-of-speech tagger from Universitat de Saarlandes. It can be trained on a variety of corpora and languages, and is based on the Viterbi algorithm for second order Markov models. It includes language models for English and German. This program is only available on request.

The UVic Image Markup Tool is a free tool for annotating images and storing the annotations in XML files from the University of Victoria's Humanities Computing and Media Centre. Its interface is designed for users without prior XML experience with additional functions for users familiar with XML, and supports multiple languages. The Image Markup Tool is available for Windows, and will also run in Linux with Wine.

LEMMA was a program package for lemmatizing German word-forms released in 1978. It was designed to work with computer-readable corpora. The algorithm was implemented in PL/I on an IBM 370/168 computer.

SALEM was a system for natural language processing developed in the 1970s. It was written in standard FORTRAN, and automated lemmatization of German texts. Its main component was a program known as SATAN (Saarbrucker Automatische Text-analyse).

GERTWOL is a tool for the morphological analysis of German texts. A limited version for analyzing single words is now available for free through the developer's website.