pklonjs1

pklonjs1 is a simple and powerful Node.js package that allows you to easily load .pkl (pickle) files and make predictions directly in JavaScript/TypeScript.

It solves two major problems:

• Loading .pkl (Pickle) files properly inside Node.js (without needing Python)
• Making predictions (especially for Decision Tree models) natively in JS, without external dependencies

No more complicated Python bridges or server hacks — just load your ML models and predict directly inside your JavaScript app! 🚀

Installation

npm install pklonjs1

or

yarn add pklonjs1

Quick Example

import PickleHandler from 'pklonjs1';

async function main() {
  const model = await PickleHandler.loadPickle('./models/decision_tree_model.pkl');
  const inputData = [-1.12, -0.28, -2.13, 1.09];
  const prediction = PickleHandler.predictDecisionTree(model, inputData);
  console.log('Prediction:', prediction);
}

main();

Example Output

Prediction: 0

Why use pklonjs1?

• ✨ No Python needed — everything runs purely in Node.js!
• ✨ Direct Pickle parsing — load .pkl files easily.
• ✨ Built-in Decision Tree prediction — instantly use your models.
• ✨ Works with TypeScript — full typings included.
• ✨ Fast and lightweight — minimal dependencies.

Supported Features

• [x] Load Pickle files (.pkl) into JS objects
• [x] Predict output using Decision Tree models
• [ ] (More model types coming soon!)

License

MIT

Made with ❤️ to make Machine Learning accessible in Node.js.