When you're learning to code in JavaScript, you'll likely use functions for many things. And functions are powerful, but they're not the answer to everything. In this handbook, @sprucekhalifa teaches you Object-Oriented Programming in JS & covers objects, prototypes, classes, &

For today's coding challenge, you'll be given a string that may or may not include some bold text formatted in markdown. Your job is to return the equivalent HTML string. You can find it on the freeCodeCamp mobile app.

We think AI is the bottleneck. Ashfaq Munshi says the real choke points are underneath it — wasted GPUs, heat, power, and an aging grid.

Managing servers, databases, and user logins can be complex and time-consuming. And sometimes it's useful to have a tool that handles this for you. Enter Backend as a Service. In this guide, @ijaydimples explains how BaaS tools work, when they're most useful, some popular

When you're working with cloud infrastructure, security should be top of mind. And in this guide, @ijaydimples covers some of the key cloud security concepts you'll need to know. You'll learn about root vs IAM users, the Shared Responsibility model, user permissions, and lots

For today's coding challenge, you'll return the most frequent element in an array. Check it out on the freeCodeCamp mobile app.

Mini ATG Gym Design + Knee & Lower Back Recipes That Have Been Wonderful For My Clients (Heads up: long article format) I measured off 200 square feet (10’ x 20’), including ample walking space, and polished off my own mini ATG. In fact, only 100 square feet of it is really

Most business apps capture tons of data. But when you need to get insights from that data, you have to go elsewhere to an analysis tool. In this article, @manishmshiva explains what embedded analytics are and how they can make your app more valuable and useful.

You may have heard about microservices and how they can help with back-end development. Well, microfrontends represent a similar concept for front-end projects - and Rahul teaches you about them here. You'll learn about different approaches to creating microfrontends so you can

If you want to improve your Data Science and Python skills, this course is for you. You'll use popular Python libraries like Pandas, scikit-learn, and NumPy to extract and clean data, then analyze it. You'll also learn about grouping & aggregation functions, merging datasets,

freeCodeCamp's JavaScript certification is now LIVE. 🏕️ It's 1,033 steps long and you'll build dozens of projects then sit for the final exam. This is a FREE verified certification you can earn then add to your LinkedIn, CV, and portfolio website. Dive in.

From the director of The Grey. Zachary Levi and Josh Duhamel star in NOT WITHOUT HOPE.

Deploying your Flutter web apps manually can start to feel repetitive real fast. So in this tutorial, @atuohaa teaches you how to use GitHub Actions to automate the process. You'll set up Firebase hosting, configure Actions, and manage your deployments through reliable CI/CD

Ruby is a programming language that tends to make developers happy. And if you want to learn the basics, @PlaybackPress has you covered here. In this interactive tutorial, he teaches you Ruby variables, types, looping, arrays, hashes, closures, classes, and more.

If you're a web dev who wants to turn your site into a native app, this article's for you. In it, Sanjay teaches you how to use the Bubblwrap tool to convert a website to a PWA & publish it on the Play Store. He walks you through creating the PWA, creating the Android app,

Chatbots can do more than just reply — they can plan, use tools, and remember things, too. In this course, Ania shows how to build an AI shopping assistant with LangGraph, MongoDB Atlas, and Google Gemini. You’ll ship a full app with a Node.js backend, React UI, real product

Salesforce is the AOL of the AI era - decaying slowly and not innovating Clarify is the CRM for the AI era and it’s why so many companies are switching! Let AI run your sales process and build a data model specifically for your business. Today they launched Rep and it’s just

GitHub has a GitHub Actions certification exam. And if you're a developer, DevOps, or automation lover, this course can help you study. In it, @andrewbrown covers runners and commands, advanced workflows, publishing and deployment, and lots more. https://t.co/UyA7ycPxzc

Spreadsheets are an important tool in modern data management and analysis. They can help you track your finances, run a business, analyze data, & more. In this project-based course, Eamonn teaches you Google Sheets core features. https://t.co/yZyNDnRyYA

For today's coding challenge, you'll convert pounds to kilograms. Sounds useful, right? Check it out on the freeCodeCamp mobile app.

As a developer, you should know core system design concepts. This helps show potential employers that you can turn design requirements into production-ready code. This course covers app architecture, API design, caching, networking, databases, and more. https://t.co/j6TmwXZox7

30 agents. Cameras ordered off. @EricTrump recounts the moment the raid began. Watch the full interview.

Data analysis is a popular and growing field in the tech world. And this 19-hour course takes you on an in-depth journey, whether you're a beginner or more advanced in your skills. You'll learn about Python, Excel, SQL, Tableau and Power BI & much more. https://t.co/v6skwMV7lc

Qwen3 is Alibaba Cloud’s latest generation of Qwen large language models. And in this course, you'll learn how to train the LLM from scratch. You'll learn about configuring the model, training hyperparameters, RoPE positional embeddings, self-attention code, and lots more.

You may have heard about the emerging field of Agentic AI. Well, in this handbook, Balajee explains the key concepts behind AI agents & how they work. You'll learn about planning and reasoning, autonomy, how agentic AI "knows" what to do, challenges agents still face, & how to