If you’ve ever built a web application, you know that without a proper mechanism to control traffic, your application can become overwhelmed, leading to slow response times, server crashes, and a poor user experience. Even worse, it can leave you vulnerable to Denial-of-Service (DoS) attacks. This is where rate limiting comes in. In this tutorial, […]
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In this handbook, you’ll build a basic version of Claude Code using Google’s free Gemini API. If you’ve ever used Cursor or Claude Code as an “agentic” AI code editor, then you should be familiar with what we’ll be building here. As long as you have an LLM at your disposal, it’s actually surprisingly simple […]
When I started using LLMs for work and personal use, I picked up on some technical terms, such as “machine learning” and “deep learning,” which are the main technologies behind these LLMs. I’ve always been interested in learning about the differences between these technologies. Most companies in the industry are now developing their own AI […]
Large Language Models (LLMs) like LLaMA 2 and Mistral are often described as “black boxes”. This means that you can see the text you give them and the responses they produce, but their inner workings remain hidden. Inside the model, billions of weights and neuron activations transform the input into output in ways we can’t […]
What if you could learn what you need to know to become a full stack developer in just one video. We just 48-hour course on the freeCodeCamp.org YouTube channel that will take you from square one to being a hireable full-stack developer. This course was developed by the team at Scrimba. This course starts right […]
Tom Mondloch quit programming after he finished community college. After a few years of odd jobs, he decided to get back into programming and discovered freeCodeCamp. He was just learning his own way, and didn’t think freeCodeCamp’s linear curriculum would be worth his time. But he stuck with it, got good, and ultimately started contributing […]
With the rise of AI agents and agentic systems, we’re no longer just generating text or images, we’re teaching AI how to take actions. Instead of asking, “Can AI write this for me?” you can now ask, “Can AI do this for me?” From updating CRMs to managing tasks, agents can now connect to real […]
Flutter hooks are powerful functions that streamline state management, side effects handling, and code organization in Flutter applications. Inspired by React hooks, they provide a more concise and modular approach compared to traditional StatefulWidget and setState patterns. By the end of this guide, you’ll understand the core hooks in Flutter, how to use them effectively, […]
When most people think of image hosting, they imagine uploading photos to a cloud service and getting back a simple link. It feels seamless, but behind that experience sits a powerful set of technologies. At the core is something called object storage, which is a different way of handling files compared to traditional databases or […]
You’ve built toy projects. Now build something real. We’ve just launched a new course on the freeCodeCamp.org YouTube channel that will teach you how to build a production-grade AI project from the ground up. Created by the Ayush Singh, this course is a deep dive into building a real-world system. Instead of focusing on a […]