Free
Free
Apache-licensed open-source library with free downloads and public issue tracker.
- Access
- Apache-licensed open-source library with free downloads and public issue tracker.
Finding the possibilities
OpenNLP
● Identity checkedNLP · Vendor site 2026-10-04
Apache OpenNLP is a Java machine learning toolkit for natural language processing tasks such as tokenization, sentence segmentation, tagging, parsing, and named entity recognition. It ships models, Maven integration, and documentation for embedding NLP pipelines.
- Category
- NLP
- Free access
- Apache-licensed open-source library with free downloads and public issue tracker.
- API access
- Not confirmed
Is OpenNLP right for you?
A good fit for
Java developers building on-prem NLP pipelines who need trainable classical ML components.
Before you choose
You host and integrate the library yourself; pretrained model quality and language coverage vary by model package.
Java NLP toolkit
Apache OpenNLP provides trainable components for common text processing pipelines in Java applications.
What it can do
Features & capabilities
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| NLP tasks | Homepage lists sentence segmentation, tokenization, lemmatization, and related NLP tasks. | Facts sourced | 2026-10-04 |
| Java toolkit | Site describes a machine-learning-based library with Maven and Gradle integration guides. | Facts sourced | 2026-10-04 |
Understand the total cost
OpenNLP pricing & plans
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Explore toolThe practical questions
Frequently asked questions
What is OpenNLP used for?
Apache OpenNLP is a Java machine learning toolkit for natural language processing tasks such as tokenization, sentence segmentation, tagging, parsing, and named entity recognition. It ships models, Maven integration, and documentation for embedding NLP pipelines.
Does OpenNLP have a free plan?
Apache-licensed open-source library with free downloads and public issue tracker.. This record lists ongoing free access; check the plan limits before starting.
How much does OpenNLP cost?
No paid monthly price is listed; this record treats the product as free to start. See the plan cards for entitlements, billing commitments and seat minimums.
Can I use OpenNLP through an API?
Not confirmed. API access and subscription access may have different terms; consult the linked sources.
What should I check before choosing it?
You host and integrate the library yourself; pretrained model quality and language coverage vary by model package.
Price history
No retained pricing changes yet. A current price alone does not establish a historical trend.
How this profile is supported
Identity and profile
Reviewed vendor source
Read original source ↗Facts apply to the named version and check date. Send a sourced correction if something changed.