Apache OpenNLP
Developer(s)Apache Software Foundation
Initial releaseApril 22, 2004; 19 years ago (2004-04-22)
Stable release
2.3.2 / February 4, 2024; 2 months ago (2024-02-04)[1]
RepositoryOpenNLP Repository
Written inJava
TypeNatural language processing
LicenseApache License 2.0
Websiteopennlp.apache.org Edit this on Wikidata

The Apache OpenNLP library is a machine learning based toolkit for the processing of natural language text. It supports the most common NLP tasks, such as language detection, tokenization, sentence segmentation, part-of-speech tagging, named entity extraction, chunking, parsing and coreference resolution. These tasks are usually required to build more advanced text processing services.[2][3]

See also


  1. ^ "News - Apache OpenNLP". Retrieved 4 February 2024.
  2. ^ Apache OpenNLP Website
  3. ^ Apache OpenNLP Proposal