1
visualml.io
visualml.ioAlso covers machine learning and programming · same kind of website
The visualml.io site introduces a machine learning toolkit built with JavaScript.
Alternatives
The Best OpenNLP Alternatives in 2026
24 alternatives1 free · 7 open source
Looking for something like OpenNLP? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 1 are free or have a free plan and 7 are open source.
Apache OpenNLP is a machine learning based toolkit for the processing of natural language text.
Top picks at a glance
First suggestionvisualml.ioThe visualml.io site introduces a machine learning toolkit…Free or freemium optionshimmytokThe shimmytok project provides a pure Rust GGUF tokenizer…Open source optionML.NETML.NET provides an open source, cross platform machine…Another optionTreatTreat supplies Ruby developers with a framework for natural…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | visualml.io | — | Not stated | Web |
| 2 | Treat | — | Not stated | — |
| 3 | scikit-learn | — | Not stated | Web |
| 4 | ML.NET | — | Yes | — |
| 5 | MLJ | — | Not stated | — |
| 6 | rb-libsvm | — | Yes | — |
| 7 | Python | — | Not stated | Web |
| 8 | shimmytok | Free | Yes | — |
| 9 | XGBoost | — | Yes | — |
| 10 | Retext | — | Yes | — |
All OpenNLP alternatives
2
Treat
github.com/louismullie/treatAlso covers machine learning and programming
Treat supplies Ruby developers with a framework for natural language processing.
3
scikit-learn
scikit-learn.orgAlso covers machine learning and programming · same kind of website
The scikit-learn documentation covers machine learning tools and methods for Python.
4
Also covers machine learning and programming · open source
ML.NET provides an open source, cross platform machine learning framework for .NET applications.
5
MLJ
github.com/alan-turing-institute/MLJ.jlAlso covers machine learning and programming
The MLJ project provides machine learning tools and a framework for Julia.
6
Also covers machine learning and programming · open source
rb-libsvm provides Ruby bindings for the LIBSVM machine learning library.
7
Python
python.orgAlso covers machine learning and programming · same kind of website
Python.org is the official site for the Python programming language and its documentation.
8
Also covers machine learning and programming · open source · free
The shimmytok project provides a pure Rust GGUF tokenizer compatible with llama.cpp and ready for WebAssembly.
9
Also covers machine learning and programming · open source
Scalable, Portable and Distributed Gradient Boosting (GBDT, GBRT or GBM) Library.
10
Also covers programming · open source
Retext processes natural language through a plugin based toolkit in the unified JavaScript ecosystem.
11
Polyglot
github.com/aboSamoor/polyglotAlso covers programming
Polyglot provides multilingual text processing tools for natural language processing.
12
Also covers programming · open source
Natural provides general purpose natural language processing utilities for applications built with Node.js.
13
Tribou
tribuo.orgAlso covers machine learning · same kind of website
Tribuo provides machine learning tools in Java, according to its project title.
14
FoLiA format
proycon.github.io/foliaAlso covers programming · same kind of website
FoLiA is an XML format for linguistic annotation of written language resources such as corpora.
15
Codigo
codigolangs.comAlso covers programming · same kind of website
Search and compare programming languages in Codigo, a directory that also publishes language news and examples.
16
Octave
octave.orgAlso covers programming · same kind of website
GNU Octave is a programming language for scientific computing with mathematical syntax.
17
Bun
bun.comAlso covers programming
JavaScript and TypeScript code can be bundled, installed, and run with Bun, a runtime and toolkit.
18
Also covers machine learning · open source
The machinelearn.js project offers machine learning tools for web applications and Node.js.
19
act
nektosact.comAlso covers programming
The act programming language is documented in a user guide with reference materials.
20
LMQL
lmql.aiAlso covers programming
LMQL provides a programming language for interactions with large language models.
21
JavaScript Interop
clojurescript.org/reference/javascript-apiAlso covers programming · same kind of website
ClojureScript JavaScript API documentation covers JavaScript interoperation and collection behavior.
22
JavaDecompiler
javadecompilers.comAlso covers programming · same kind of website
Decompile Java class and JAR files online to inspect their source code with JavaDecompiler.
23
Underdash
surma.github.io/underdashAlso covers programming · same kind of website
Copy and paste reusable JavaScript utility functions from the Underdash collection.
24
JS Compressor
jscompressor.treblereel.devAlso covers programming · same kind of website
Compress JavaScript with the Closure Compiler and choose an optimization level and formatting options.
No alternatives match this filter.
Alternatives to similar tools
JavaScript Interop24 alternativesJavaDecompiler24 alternativesmachinelearn.js24 alternativesPolyglot24 alternativesact24 alternativesMLJ24 alternatives
What is the best alternative to OpenNLP?
Based on features, tags and platforms, the closest alternatives to OpenNLP are visualml.io, Treat, and scikit-learn.
Is there a free alternative to OpenNLP?
Yes. shimmytok is free or offer a free plan.
Are there open-source alternatives to OpenNLP?
Yes: ML.NET, rb-libsvm, shimmytok, and XGBoost.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative