OpenNLP

Machine learning based toolkit for NLP tasks by Apache Foundation.

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About

Apache OpenNLP is a machine learning toolkit for natural language text processing written entirely in Java. It supports tokenization, sentence segmentation, part-of-speech tagging, named entity recognition, chunking, parsing, and coreference resolution, and ships pretrained models that can be retrained on custom data. It integrates into JVM applications via Maven. Released under the Apache 2.0 license.

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Details

Price
Free
Platform
Local/Desktop
Difficulty
Easy (2/5)
License
Apache-2.0
Added
Apr 3, 2026

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