xenova

xenova / microgpt.js

Public

The most atomic way to train and inference a GPT in pure, dependency-free JavaScript. This repository covers the complete algorithm. Everything else is just efficiency. Inspired by Karpathy's microgpt.py.

huggingface.cospaceswebml-communitymicrogpt.js
78
7
100% credibility
Found Feb 17, 2026 at 52 stars -- GitGems finds repos before they trend. Get early access to the next one.
Sign Up Free
AI Analysis
JavaScript
AI Summary

A standalone JavaScript program that trains a tiny language model on text from a file and generates new similar text, with no extra software needed.

How It Works

1
📖 Discover the project

You find this fun, simple project that lets you train a tiny AI to copy writing styles from your own text files.

2
💾 Prepare your text

Create a plain text file filled with stories, names, poems, or any writing you want the AI to learn and mimic.

3
▶️ Start the learning process

Run the program with your text file, and it begins teaching itself the patterns in your writing, step by step.

4
📉 Watch it get smarter

You see numbers dropping as the AI improves at guessing what words come next, feeling the magic of learning happen.

5
✨ Create new writings

Tell the AI to dream up fresh text, and it generates creative new stories or names in the style it learned.

🎉 Celebrate your mini AI

Now you have a personal tiny brain that writes like your input, ready for endless fun experiments!

Sign up to see the full architecture

4 more

Sign Up Free

Star Growth

See how this repo grew from 52 to 78 stars Sign Up Free
Repurpose This Repo

Repurpose is a Pro feature

Generate ready-to-use prompts for X threads, LinkedIn posts, blog posts, YouTube scripts, and more -- with full repo context baked in.

Unlock Repurpose
AI-Generated Review

What is microgpt.js?

microgpt.js trains and runs a tiny GPT model from scratch in pure JavaScript, using just a text file as input to learn character patterns and generate new sequences. It solves the barrier of needing Python or heavy ML libraries by delivering the full GPT algorithm—training loop, attention, and inference—in dependency-free code that runs in browsers or Node.js. Developers get instant, reproducible text generation demos without setup.

Why is it gaining traction?

This stands out as the most atomic GPT implementation amid github most popular repos and github most starred ones, stripping everything to the core algorithm while matching a well-known Python reference exactly. No frameworks or deps means zero-friction experiments, hooking JS devs tired of npm bloat in github most used languages projects. Its browser-ready inference draws tinkerers chasing the most atomic algorithm purity.

Who should use this?

JavaScript developers dissecting transformers without switching languages. Web educators building live NN demos for students. Hobbyists training micro-models on custom text in client-side apps, like generating names or code snippets.

Verdict

Worth forking for hands-on GPT algorithm insight, despite 1.0% credibility from 52 stars and basic docs—it's a toy, not production-ready. Use to level up your ML intuition in JS.

(178 words)

Sign up to read the full AI review Sign Up Free

Similar repos coming soon.