freeCodeCamp.org

When you build a website, you have two choices for how pages are created: statically or dynamically. But if you want the best of both worlds, consider Incremental Static Regeneration, or ISR. In this guide, @thejoanayebola explains how ISR works in Next.js so you can use it to…

Today's coding challenge keeps it pretty straightforward: you'll build a word counter. Check it out on freeCodeCamp's mobile app.

Kubernetes is an open source tool that helps you manage all the parts of your apps in containers. So if you have an app with a bunch of microservices, for example, Kubernetes lets you wrangle them more easily. In this handbook, @POnukwili teaches you about pods, workflows,…

Design patterns are solutions to common coding problems that show up often in your projects. And in this tutorial, @PlaybackPress explains how some key object-oriented design patterns work in Java. He covers patterns like Strategy, Singleton, Composite, Decorator, State,…

Flutter and Firebase work well together - and in this handbook, @atuohaa shows you exactly how. You'll learn how to integrate tons of different Firebase services into your Flutter apps. He walks you through setting up your app, using Cloud Firestore and Functions, hosting and…

When you're hacking away on your own projects, sometimes you want to put together your own tool stack. And in this guide, Manish shares his picks for the ultimate Indie Hacker stack. He talks about key build tools, hosting and payment options, how to deploy where your users…

Telehealth lets patiences get certain health care remotely, without going to a doctor's office. And since this approach has gotten so popular, it's helpful for devs to know how to build Telehealth apps. In this in-depth guide, @Derekvibe26 walks you through building one using…

SonarQube is an open source tool that helps you analyze your code to find any bugs and vulnerabilities. And in this article, Divya explains how you can use it. She walks you through what SonarQube does, helps you get it installed and set up, and runs through a quick code…

Did you know that on this day in 1988, the first major internet worm started rampaging around the net? It infected about 10% of computers connected to the internet after just one day. For today's coding challenge, given a number of days since the worm was released, you'll need…

React lets you you create interactive, reusable components that manage their own state and respond efficiently to data changes. And in this tutorial, Mark covers React basics to get you started. You'll learn about writing your first component, building a React app with Vite, &…

Web scraping lets you gather info you may need from a webpage. And in this tutorial, Mihail shows you how to build your own scraper tool in React. You'll even make the app more performant by using local storage to store already scraped data. freecodecamp.org/news/build-a-d…

AI Engineers design, build, and deploy AI models and systems to solve complex real-world problems. And if you want to get into the field, this handbook is for you. In it, @tatevkaren7 discusses must-have skills, shares tips for getting started, and goes through use cases for…

If you're an aspiring Data Scientist, Data Science competitions can help improve your skills. And this course teaches you about Kaggle, a popular competition platform & DS community. It covers picking competitions, feature engineering, selecting a model, & more.…

Wishing everyone a happy and safe Halloween! 🎃 👻 🕸️

Potential employers may want to know that you have solid Kubernetes skills. Well, to show them you do, you can earn the Certified Kubernetes Administrator cert - and this course helps you study. In it, @beaucarnes covers cluster architecture, workloads and scheduling,…

For today's coding challenge, you'll build a small signature validator. Sounds useful, right? Check it out on the freeCodeCamp mobile app.

You may have tons of assets in your Flutter projects - like images, icons, and fonts. And managing them can be a pain, especially as your app grows - and especially if you're doing it manually. In this guide, @atuohaa shows you how to use the flutter_gen package to handle…

Performance testing shows how your app will perform in terms of load, concurrency, and throughput - under real-world pressure. And in this guide, Noor helps you build an end-to-end performance test in Apache JMeter. Your test suite will be dynamic and one-click executable, and…

You may have heard about the Model Context Protocol and wondered how it lets AI tools connect to other tools, APIs, and systems. Well, it's all thanks to MCP servers. In this guide, Manish explains how MCP servers work and helps you build your own with Python and the FastMCP…

No one wants to hear they're being placed on a Performance Improvement Plan. Moshe certainly didn't at first - until he dug in, worked harder than ever before, and started seeing improvement. In this article, he discusses his PIP experience at Google - what he learned, where he…