If you want to contribute to open source but don't know how to start, this guide's for you. In it, Fanny helps you get set up. She also explains version control basics and walks you through the whole process. www.freecodecamp.org/news/how-to-...

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. www.freecodecamp.org/news/learn-g...

Today's Coding Challenge: String Mirror. Check it out on the freeCodeCamp mobile app.

As a Machine Learning Engineer, you should understand the math that powers Deep Learning. And this course covers the Linear Algebra & Calculus you'll need to know. You'll learn about determinants, differentiation, & integration + practical applications. www.freecodecamp.org/news/deep-le...

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, Andrew covers runners and commands, advanced workflows, publishing and deployment, and lots more. www.freecodecamp.org/news/pass-th...

Git is a tool that many software developers use daily. It helps you track changes to your code and collaborate with others. In this course you'll learn about key Git concepts like commits, merges and merge conflicts, logs, stashing, rebasing, and more. www.freecodecamp.org/news/learn-g...

In software, a buffer overflow happens when a program writes more data into a buffer than it was allocated. This can cause memory corruption, crashes, & even security issues. In this in-depth guide, Soham explains what buffers are & how to prevent this issue. www.freecodecamp.org/news/how-to-...

Deploying your Flutter web apps manually can start to feel repetitive real fast. So here, Anthony teaches you how to use GitHub Actions to automate it. You'll set up Firebase hosting, configure Actions, & manage your deployments through reliable CI/CD pipelines. www.freecodecamp.org/news/how-to-...

In coding, a system is a set of rules & processes that help guide your workflow. And here, Prankur teaches you some key system design principles. He uses job board & gaming case studies and covers growth issues, caching & CDNs, APIs, the CAP theorem, & lots more. www.freecodecamp.org/news/learn-k...

Today's Coding Challenge: Digits vs Letters. Check it out on the freeCodeCamp mobile app.

Ruby is a programming language that tends to make developers happy. And if you want to learn the basics, Mark has you covered here. In this interactive tutorial, he teaches you Ruby variables, types, looping, arrays, hashes, closures, classes, and more. www.freecodecamp.org/news/a-brief...

If you want to learn how to build games, Tic-Tac-Toe is a great place to start. Here, Manish walks you through building this fun game using Phaser.js. You'll set up the game config, preload assets, draw the grid, start & stop the game, check for winners, & more. www.freecodecamp.org/news/how-to-...

When you're building mobile apps, you'll need to make sure they're stable in real-world situations. And you can only do so much testing - which is where Firebase's Crashlytics tool comes in. Anthony walks you through setting up Crashlytics in your Flutter apps. www.freecodecamp.org/news/how-to-...

If you know some Chess basics, you may be wanting to improve your endgame strategies. Well, Ihechikara covers that along with algebraic chess notation in this handbook. You'll learn how chess players keep track of their moves + some popular checkmate patterns. www.freecodecamp.org/news/checkma...

If you're a web dev who wants to turn your site into a native app, Sanjay will teach you how. You'll use Bubblwrap to convert a website to a PWA & publish it on the Play Store. You'll create the PWA, build the Android app, set up TWA validation, & more. www.freecodecamp.org/news/how-to-...

Nano Banana gives you powerful tools to generate images with natural-language prompts. It's a great way to add images to your next project. Here, Tarun shows you how to set it up, do edits & fusion, and more. www.freecodecamp.org/news/nano-ba...

Today's Coding Challenge: Video Storage. Check it out on the freeCodeCamp mobile app.

Tokenization is the process of breaking down text into words, sentences, and symbols. These tokens can be used for things like NLP and much more. Here, Ayush goes over 5 different methods to tokenize text in Python. www.freecodecamp.org/news/how-to-...

Good docs are important. They’re the backbone of welcoming, empowered tech communities. Here, Oladeji shows you how to organize info & keep docs usable as communities scale. www.freecodecamp.org/news/how-to-...

SQLite is a full-featured relational database that runs in-app. No server is needed, so it's perfect for local data storage. In this tutorial, Mark goes over the basics of SQLite, & how to use it in apps. www.freecodecamp.org/news/a-brief...

Debugging back-end APIs is easier when every request has a unique trace. Here, Dominic shows you how to add per-request IDs to Express using AsyncLocalStorage and hook them into winston & morgan logging. You’ll generate & store IDs, include them in logs, & more. www.freecodecamp.org/news/how-to-...

Chatbots can do more than just reply — they can plan, use tools, & remember things. In this course, Ania helps you 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 + an agent. www.freecodecamp.org/news/buildin...

These days, it seems like everybody has a chat app - but not all of them have voice recognition. That's exactly what Timothy helps you build in this guide. You'll code your own conversational AI chatbot using Stream Chat & React with voice-to-text functionality. www.freecodecamp.org/news/build-a...

Today's Coding Challenge: File Storage. Check it out on the freeCodeCamp mobile app.

If you have a lot of data to analyze, you'll need to turn raw numbers into actionable insights. And that's what this guide to cloud data analytics teaches you. You'll learn about data management and storage, data transformation and visualization, and lots more. www.freecodecamp.org/news/beginne...

Chat apps let you catch up with people in real time. And here, Deji walks you through building your own using Angular and Supabase. You'll learn how to use Angular router for navigation, how to set up authentication, how to call Supabase functions, and lots more. www.freecodecamp.org/news/how-to-...

In programming, a queue is a collection of items arranged in a first-in, first-out order. Here, Yazdun explains how to use queues in TypeScript. You'll learn about linked lists & simple, circular, double-ended, & priority queues, plus how to implement it in code. www.freecodecamp.org/news/how-to-...

Networking is a key part of Linux systems. And you'll need to understand the network interface when setting up servers, managing device traffic flow, etc. Here, Ijeoma teaches you how to configure network interfaces in Linux - and covers some best practices, too. www.freecodecamp.org/news/configu...

Authentication proves who you are. Authorization decides what you can do. In this course, you'll learn how to build ASP.NET apps that issue JWTs, register & log in users, manage roles, and more. buff.ly/kDfeOL7

Want to pass the Databricks Data Engineer Associate exam? Then this is the course for you. It covers everything SQL commands & logic, Delta Lake, cluster types, & more. www.freecodecamp.org/news/prepare...

Today's Coding Challenge: Photo Storage. Check it out on the freeCodeCamp mobile app.

When you're managing complex CI/CD pipelines, debugging failures can be tough. So Emidowojo wrote this handbook that teaches you troubleshooting strategies & observability tools. You'll learn about logging, metrics, common CI/CD errors, postmortems, & lots more. www.freecodecamp.org/news/how-to-...

Python is one of the most popular programming languages out there - so why not dive in and start learning it? In this animated intro to Python, Mark teaches you all the basics you'll need to know. He covers control flow, conditions, functions, classes, & more. www.freecodecamp.org/news/an-anim...

Nest.js is a Node.js framework that lets you build fast, scalable server-side apps. It combines key features from various programming paradigms & gives you a fully-architected platform. In this handbook, Ger teaches some theory + practice to get you started. www.freecodecamp.org/news/the-nes...

ObjectBox is a lightweight NoSQL database built for Flutter and Dart apps. Reactive APIs, relationships, and migrations are all included. Here, Atuoha goes over how to set it up and perform CRUD operations. www.freecodecamp.org/news/how-to-...

Writing the same code repeatedly is a code smell. It's poor practice, and doesn't follow the DRY principle. Here, Grant goes over how to use loops in C# for when you need to repeat commands or operations multiple times. www.freecodecamp.org/news/how-to-...

Cosign similarity is how LLMs measure meaning. It does this by comparing angles between vectors to find relationships between text. Here, Manish goes over how cosign similarity powers chatbots and other AI systems. www.freecodecamp.org/news/how-doe...

Today's Coding Challenge: Fill the Tank. Check it out on the freeCodeCamp mobile app.

Many learners face communication barriers. Tools like smartboards expect speech or gestures to work. Here, Omotayo shows how to build an AI powered tool to interpret multimodal communication. www.freecodecamp.org/news/build-a...

Learning React can be tough - but building projects and solving coding challenges can help. And this hands-on course helps you do just that. In it, Bob walks you through 170+ coding challenges and 6 projects to teach you React fundamentals. www.freecodecamp.org/news/learn-r...

If you want to improve your coding skills, try comparing and contrasting similar code. In this in-depth guide, Evaristo walks you through 5 different versions of a Rock, Paper, Scissors game in JavaScript. You'll analyze the projects & dissect their strategies. www.freecodecamp.org/news/how-to-...

Event-driven architecture is a design pattern that helps systems handle real-time interactions & async workflows. This course teaches you how it works by building a SaaS app. You'll use Next.js & Clerk and learn about authentication flows, RBAC, Webhooks, & more. www.freecodecamp.org/news/learn-e...

Today's Coding Challenge: Slug Generator. Check it out on the freeCodeCamp mobile app.

AWS Cognito can help you simplify user management, authentication, & access control. And this course teaches you how it works by building a secure file-sharing app. You'll learn how to work with JWTs, integrate Cognito with React & Node.js, secure APIs, & more. www.freecodecamp.org/news/learn-a...

You can use collections in Go to store and manipulate data. But working with real programs requires more than just the basic syntax. Here, Gabor shows some advanced operations using Go's standard library helpers. You'll learn about sorting, map helpers, & more. www.freecodecamp.org/news/how-to-...

Transformers play a major role in how AI systems understand and process text. In this article, Oyedele teaches you how they work under the hood. You'll also build a mini transformer, and learn how use Hugging Face transformers. www.freecodecamp.org/news/how-tra...

Code editors enable you to write, execute, and test your code. But what if you built yours? In this course, you'll create a browser-based code editor with live preview. You'll implement keyboard shortcuts & code validation, add save/load functionality, & more. www.freecodecamp.org/news/code-yo...

Ollama is a powerful open source tool that lets you run LLMs right in your local environment. Local LLMs give you more control, privacy, and customization options than those run in the cloud. This course teaches you how Ollama works by building three projects. www.freecodecamp.org/news/local-a...

Today's Coding Challenge: Sentence Capitalizer. Check it out on the freeCodeCamp mobile app.

If you're a beginner learning web development, here's a course for you. You'll build a weather app that displays real-time weather data with a 7-day forecast. You'll use the Next.js framework, Tailwind CSS for styles, & TypeScript to add strong typing. www.freecodecamp.org/news/beginne...