List of natural language processing toolkits

List of natural language processing toolkits

The following natural language processing toolkits are popular collections of natural language processing software. They are suites of libraries, frameworks, and applications for symbolic, statistical natural language and speech processing. NLP tools usually perform sentence detection, tokenization, POS-tagging, text chunking, lemmatisation, coreference analysis and resolution, and named-entity detection among others.

Name Language License Creators Website
AlchemyAPI C, C++, C#, Java, Python, Perl, Ruby Free or Commercial Orchestr8 [1]
Antelope framework C#, VB.net Free for research Proxem [2]
Apertium C++, Java GPL (various) [3]
Cogito Commercial Expert System S.p.A. [4]
Carabao Language Kit Any COM+ compliant language. Customization is via data entry Commercial with free development tools Digital Sonata Pty Ltd [5]
DELPH-IN LISP, C++ LGPL, MIT, ... Deep Linguistic Processing with HPSG Initiative [6]
Distinguo C++ Commercial Ultralingua Inc. [7]
Ellogon C / C++ LGPL Georgios Petasis [8]
FreeLing C++ GPL Universitat Politècnica de Catalunya [9]
General Architecture for Text Engineering Java LGPL GATE open source community [10]
Graph Expression Java Apache License Startup huti.ru [11]
Learning Based Java Java BSD Cognitive Computation Group at the University of Illinois [12]
LingPipe Java royalty free or commercial Alias-i [13]
LinguaStream Java Free for research University of Caen, France [14]
Mallet Java Common Public License University of Massachusetts Amherst [15]
MII nlp toolkit Java LGPL UCLA Medical Imaging Informatics (MII) Group [16]
Modular Audio Recognition Framework Java BSD The MARF Research and Development Group, Concordia University [17]
MontyLingua Python, Java Free for research MIT [18]
Natural Language Toolkit (NLTK) Python Apache 2.0 [19]
NooJ (based on INTEX) .NET Framework-based Free for research University of Franche-Comté, France [20]
OpenNLP Java Apache License 2.0 Online community [21]
Rosette C, C++, Java, .NET Commercial Basis Technology [22]
ScalaNLP Scala Apache License David Hall and Daniel Ramage [23]
Stanford NLP Java GPL The Stanford Natural Language Processing Group [24]
Rasp C++ LGPL University of Cambridge, University of Sussex [25]
Natural Javascript, NodeJs GPL Chris Umbel [26]
Text Engineering Software Laboratory (Tesla) Java Eclipse Public License University of Cologne [27]
Thinktelligence Delegator Java Commercial Thinktelligence Corporation [28]
UIMA Java / C++ Apache 2.0 Apache [29]
WebLab-project Java LGPL OW2 [30]
UniteX Java & C++ LGPL Laboratoire d'Automatique Documentaire et Linguistique [31]
The Dragon Toolkit Java GPL Drexel University [32]
Factorie Java Apache License University of Massachusetts Amherst [33]
Silpa Indic Language Processing Toolkit Python AGPL Silpa opensource community developers [34]

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