Open-source natural language processing library
Apache OpenNLP is an open-source natural language processing library that provides tools for tokenization, sentence segmentation, part-of-speech tagging, and named entity extraction.
Pricing Type
Billing
Billed monthly
Last checked: February 21, 2026
Categories
Platforms
Company
Apache Software Foundation
Founded
Founded in 1999
Country
Language
English
Website
opennlp.apache.org