Getting Started with Million.js: The High-Performance Frontend Library

In the modern world of web development, speed and efficiency are everything. That’s where Million.js comes into play. Million.js is a powerful JavaScript library designed to improve the performance of web applications, specifically integrating with React applications. This tutorial will cover the process of integrating Million.js into your React applications, helping you unleash the true potential of your React development journey.

What is Million.js?

Million.js is an extremely fast and lightweight virtual DOM library that serves as a drop-in replacement for React. It is designed to make React applications up to 70% faster, especially for UI and data-heavy applications. The library offers a range of features aimed at optimizing the performance of React apps without requiring major code changes or learning a new framework.

One of the key features of Million.js is its block virtual DOM, which outperforms React’s virtual DOM by using a diffing technique based on data rather than the DOM. This approach significantly reduces the computational overhead of React, resulting in faster rendering and improved user experience.

In addition to the block virtual DOM, Million.js also includes a supercharged compiler that optimizes React components on the server. This optimization process further enhances the performance of React apps, allowing them to handle larger datasets and complex UI structures with ease.

Key Takeaways:

  • Million.js is a lightweight virtual DOM library that makes React applications up to 70% faster.
  • It offers features like a block virtual DOM and a server-side compiler to optimize React components.
  • Million.js requires just one plugin to integrate into your React app, making it easy to try out.

Building an App with Million.js

Now let’s see how we can build an app using Million.js. For this example, let’s create a data grid, which will showcase one of the many benefits of using Million.js in rendering lists of data.

To get started, we need to install Million.js. You can do this by running the following command:

npm install millionjs

Once Million.js is installed, you can import it into your React app:

import { block } from "millionjs";

Next, let’s assume you have access to pre-built components like <Table /> and <Input /> from a UI library. In Million.js, you can create a block component by using the block() function, which wraps your component and optimizes its rendering performance.

const TableBlock = block(Table);
const InputBlock = block(Input);

Now, let’s create a data grid component using Million.js. We’ll store the number of rows to display in a useState() hook:

import React, { useState } from "react";

const DataGrid = () => {
  const [rows, setRows] = useState(10);

  const data = buildData(rows);

  return (
    <TableBlock data={data}>
      <InputBlock onChange={(e) => setRows(} value={rows} />

In this example, we create a DataGrid component that renders a TableBlock component and an InputBlock component. The TableBlock component receives the data prop, which contains the data to be rendered in the table. The InputBlock component is used to dynamically update the number of rows displayed in the table. Whenever the value of the input changes, we update the rows state using the setRows() function.

By using Million.js’s block components, we can ensure optimal rendering performance, even for large datasets and complex UI structures.

Who is Million.js for?

Million.js is ideal for React developers who are looking to improve the performance of their applications. Whether you’re working on a UI-heavy project, a data-intensive application, or simply want to enhance the overall user experience, Million.js can help you achieve your goals.

If you’re already familiar with React and want to make your applications faster without learning a new framework or making major code changes, Million.js is a great choice. The library seamlessly integrates with React, making it easy to adopt and try out without disrupting your existing development workflow.

Additionally, Million.js is suitable for developers who work on projects that require handling large datasets or complex UI structures. The optimizations provided by Million.js, such as the block virtual DOM and the server-side compiler, enable React applications to perform efficiently in these scenarios.

Getting Started with Million.js

To get started with Million.js, you need to follow a few simple steps:

  1. Install the Million.js library by running npm install millionjs in your project directory.
  2. Import the block function from the Million.js library.
  3. Wrap your React components with the block function to optimize their rendering performance.
  4. Utilize the optimized components in your application, taking advantage of their improved rendering speed.

By following these steps, you’ll be able to integrate Million.js into your React applications and experience the enhanced performance of your UI.


Million.js is a powerful library that provides a faster and lighter alternative to the virtual DOM used by React. By leveraging a finely-tuned virtual DOM, Million.js reduces the overhead of React, resulting in significantly improved rendering performance. With features like the block virtual DOM and the server-side compiler, Million.js offers a range of optimizations that can make React apps up to 70% faster.

Throughout this tutorial, we explored the key concepts and benefits of Million.js, and we learned how to integrate it into a React application. We saw how using Million.js’s block components can optimize rendering performance, especially when dealing with large datasets and complex UI structures.

If you’re interested in exploring Million.js further, I encourage you to visit the official documentation at There, you’ll find detailed guides, examples, and additional resources to help you unleash the full potential of Million.js in your React development journey.

So why wait? Experience the power of Million.js today and transform your React applications into lightning-fast, high-performing marvels.