freeCodeCamp

Scaling Your AI Models with Micro-DDP

Beau Carnes |
Scaling large AI models requires more than just raw computing power. It demands sophisticated techniques to distribute workloads efficiently across hardware. We just posted a new course on the freeCod... read more

Why Computers Can’t Count Money

Beau Carnes |
Computers are incredibly fast, but they have a surprising, fundamental flaw when it comes to counting money. In our latest freeCodeCamp.org video, "Why Computers Can’t Count Money," Ania Kubow dives i... read more

Build an AI Agent in Telegram with Vercel, Cursor, Composio

Beau Carnes |
Building your own AI agent has never been more accessible. We just released a comprehensive new course on the freeCodeCamp.org YouTube channel that guides you through building a powerful, persistent A... read more

How to Build a Reliable SSE Client in TypeScript

timothy ogbemudia |
When you build a feature that streams data, like an AI chat response or a live notification feed, the network is rarely as cooperative as fetch makes it look. Connections drop, proxies buffer response... read more

Advanced Dart: Learn Asynchronous Programming with Streams, Isolates, and the Event Loop

Gidudu Nicholas |
I had been writing Flutter apps for over a year before I actually understood how Dart handles concurrency. I knew how to use await. I knew FutureBuilder and StreamBuilder well enough to get things wor... read more

How I Became Brazil's First Visually Impaired Cybersecurity Graduate — and Changed Vulnerability Research

Juan Mathews Rebello Santos |
I was born prematurely at six months. My mother's placenta detached before delivery, and she essentially "gave birth" before I came out. Two days after my birth, doctors found a heart murmur that requ... read more

How to Use Dart Dot Shorthands: A Handbook for Devs

Atuoha Anthony |
If you've written Flutter code for more than a month, you've likely written this line hundreds of times: mainAxisAlignment: MainAxisAlignment.center, crossAxisAlignment: CrossAxisAlignment.start, main... read more

How to Stop Your AI Coding Agent from Writing Outdated Code with Modern Web Guidance

Ophy Boamah |
AI coding agents can save developers a lot of time – that is, until you open the output and realize they've written code like it's 2019. Ask an agent to build a tooltip, for example. The HTML looks po... read more

How to Insert Images in Google Sheets

Vikram Aruchamy |
Google Sheets is widely used for tracking data, managing inventories, building product catalogs, and creating dashboards. In many of these use cases, adding images directly into a spreadsheet makes th... read more

How to Build a Browser-Based PDF Reverse Tool Using JavaScript

Bhavin Sheth |
PDF files are often created by combining scans, exporting documents from different systems, or processing large batches of pages. In many cases, the final PDF ends up with pages arranged in the wrong... read more