freeCodeCamp

How to Build AI-Powered Flutter Applications with Genkit Dart – Full Handbook for Devs

Atuoha Anthony |
There's a particular kind of frustration that every mobile developer has felt at some point. You're building a Flutter application, and you want to add an AI feature. Perhaps it's something that reads... read more

How to Build AI Agents That Can Control Cloud Infrastructure

Manish Shivanandhan |
Cloud infrastructure has become deeply programmable over the past decade. Nearly every platform exposes APIs that allow developers to create applications, provision databases, configure networking, an... read more

How to Build a Local SEO Audit Agent with Browser Use and Claude API

Daniel Nwaneri |
Every digital marketing agency has someone whose job involves opening a spreadsheet, visiting each client URL, checking the title tag, meta description, and H1, noting broken links, and pasting everyt... read more

Efficient State Management in Flutter Using IndexedStack

Atuoha Anthony |
When you're building Flutter applications that have multiple tabs or screens, one of the most common challenges you'll face is maintaining state across navigation without breaking the user experience.... read more

How to Design a Type-Safe, Lazy, and Secure Plugin Architecture in React

Jessica Patel |
Modern web applications increasingly need to evolve faster than a single team can maintain a monolithic codebase. Product teams often want to add features independently, experiment with new capabiliti... read more

How to Build a QR Code Generator Using JavaScript – A Step-by-Step Guide

Bhavin Sheth |
QR codes are everywhere today. You scan them to open websites, make payments, connect to WiFi, or even download apps. Most developers use online tools when they need one quickly. But just like image c... read more

How to Build an Animated Shadcn Tab Component with Shadcn/ui

Vaibhav Gupta |
Tab components are everywhere: dashboards, settings panels, product pages. But most implementations are static, lifeless, and forgettable. What if your tabs felt alive, with smooth spring animations,... read more

How to Implement Token Bucket Rate Limiting with FastAPI

Prosper Ugbovo |
APIs power everything from mobile apps to enterprise platforms, quietly handling millions of requests per day. Without safeguards, a single misconfigured client or a burst of automated traffic can ove... read more

How to Build Your Own Claude Code Skill

Daniel Nwaneri |
Every developer eventually has a workflow they repeat. A way they write commit messages. A checklist they run before opening a pull request. A structure they follow when reviewing code. They do it man... read more

How to Share Components Between Server and Client in NextJS

David Aniebo |
Next.js App Router splits your app into Server Components and Client Components. Server Components run on the server and keep secrets safe. Client Components run in the browser and handle interactivit... read more