Frontend Frameworks

@programphile/brain.js

A neural network library for JavaScript and Node.js

Status
UnmaintainedNo commits in 777 days.
Last checked
Aging · Sep 2, 2026
License
Open source
Pricing
Free tier · from $0
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What it is

Brain.js is a powerful yet simple to use neural network library that allows developers to create, train, and deploy machine learning models directly in their JavaScript applications.

Brain.js stands out as a lightweight and easy-to-use neural network library specifically designed for the JavaScript ecosystem, making it ideal for developers who want to integrate AI capabilities directly into their web applications.

When it fits — and when it doesn’t

A good fit for

  • JavaScript developers looking to integrate neural networks directly into their projects without external dependencies

  • Educators and students who want a simple yet powerful tool for teaching machine learning concepts in JavaScript

Look elsewhere if

  • Projects requiring real-time, high-performance inference on large datasets (due to performance limitations of JavaScript runtime)

  • Teams needing cloud-based scalable solutions with managed services

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Limited documentation and examples

    Official documentation lacks detailed guides for advanced use cases, relying heavily on community contributions

  2. 02

    Performance issues with large datasets

    Training neural networks on large datasets can be slow and resource-intensive in JavaScript environments compared to more optimized languages like Python or C++

  3. 03

    Small community and limited support

    Few active contributors and limited resources for troubleshooting complex issues, leading to slower resolution of bugs and feature requests

What it does well

  • Simple API for creating and training neural networks

  • Supports various types of neural network architectures

  • Can be used in both browser and Node.js environments

Pricing

Free tier
YesOpen source — free to use
Paid from
$0
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

How Fast Is It?

Set up @programphile/brain.js

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →