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If you really want to understand how LLMs work, try coding your own version from scratch. And that's exactly what you'll do in this course: build a Llama 4-like LLM from the bottom up. You'll build a tokenizer, learn about the attention mechanism, & lots more.
www.freecodecamp.org/news/code-yo...
www.freecodecamp.org/news/code-yo...
February 13, 2026 at 5:08 PM
If you really want to understand how LLMs work, try coding your own version from scratch. And that's exactly what you'll do in this course: build a Llama 4-like LLM from the bottom up. You'll build a tokenizer, learn about the attention mechanism, & lots more.
www.freecodecamp.org/news/code-yo...
www.freecodecamp.org/news/code-yo...
Winter Olympics, Day 8! For today's coding challenge, you'll be given an array of segment times for a luger. Your goal is to determine which segment had the fastest speed and what that speed was. Check it out on the freeCodeCamp mobile app.
February 13, 2026 at 2:45 PM
Winter Olympics, Day 8! For today's coding challenge, you'll be given an array of segment times for a luger. Your goal is to determine which segment had the fastest speed and what that speed was. Check it out on the freeCodeCamp mobile app.
If you're prepping for tech job interviews, you should know how to apply data structures & algorithms to coding challenges. And this course helps you learn the key DSA you'll need to know. It covers arrays, sets, hashmaps, Big O notation, binary search, & more.
www.freecodecamp.org/news/data-st...
www.freecodecamp.org/news/data-st...
February 13, 2026 at 1:03 PM
If you're prepping for tech job interviews, you should know how to apply data structures & algorithms to coding challenges. And this course helps you learn the key DSA you'll need to know. It covers arrays, sets, hashmaps, Big O notation, binary search, & more.
www.freecodecamp.org/news/data-st...
www.freecodecamp.org/news/data-st...
Vim is a powerful, customizable text editor that many devs swear by. It has a steep learning curve for beginners, but this course helps smooth that out for you. In it, Andrew teaches you about Vim's history, customization & plugins, and core commands.
www.freecodecamp.org/news/masteri...
www.freecodecamp.org/news/masteri...
February 13, 2026 at 9:01 AM
Vim is a powerful, customizable text editor that many devs swear by. It has a steep learning curve for beginners, but this course helps smooth that out for you. In it, Andrew teaches you about Vim's history, customization & plugins, and core commands.
www.freecodecamp.org/news/masteri...
www.freecodecamp.org/news/masteri...
If you want to practice your AI + coding skills, this one's is for you. Arunachalam helps you build an AI-powered bot using Node.js, Gemini, & other popular tools. You'll learn how to automate fetching & processing the data then compose tweets based on that data.
www.freecodecamp.org/news/how-to-...
www.freecodecamp.org/news/how-to-...
February 13, 2026 at 5:01 AM
If you want to practice your AI + coding skills, this one's is for you. Arunachalam helps you build an AI-powered bot using Node.js, Gemini, & other popular tools. You'll learn how to automate fetching & processing the data then compose tweets based on that data.
www.freecodecamp.org/news/how-to-...
www.freecodecamp.org/news/how-to-...
If you want to protect yourself against cybersecurity threats, you should know how attackers might hack you. In this course, you'll learn how to defend against real-world vulnerabilities. You'll also learn about pentesting, network security, helpful tools & more.
www.freecodecamp.org/news/learn-c...
www.freecodecamp.org/news/learn-c...
February 13, 2026 at 1:01 AM
If you want to protect yourself against cybersecurity threats, you should know how attackers might hack you. In this course, you'll learn how to defend against real-world vulnerabilities. You'll also learn about pentesting, network security, helpful tools & more.
www.freecodecamp.org/news/learn-c...
www.freecodecamp.org/news/learn-c...
If you want your AI-powered app to be personalized - and to survive production - you'll need to connect it to tools & manage multi-step workflows. Here, Nataraj helps you build AI agents that remember user preferences (without breaking context).
www.freecodecamp.org/news/how-to-...
www.freecodecamp.org/news/how-to-...
February 12, 2026 at 9:03 PM
If you want your AI-powered app to be personalized - and to survive production - you'll need to connect it to tools & manage multi-step workflows. Here, Nataraj helps you build AI agents that remember user preferences (without breaking context).
www.freecodecamp.org/news/how-to-...
www.freecodecamp.org/news/how-to-...
Testing your applications is something you should do before problems appear in production. And if you're building apps with React + Vite, the Vitest framework is a good fit. In this tutorial, Abraham walks you through testing your components & hooks with Vitest.
www.freecodecamp.org/news/how-to-...
www.freecodecamp.org/news/how-to-...
February 12, 2026 at 5:05 PM
Testing your applications is something you should do before problems appear in production. And if you're building apps with React + Vite, the Vitest framework is a good fit. In this tutorial, Abraham walks you through testing your components & hooks with Vitest.
www.freecodecamp.org/news/how-to-...
www.freecodecamp.org/news/how-to-...
Winter Olympics, Day 7! For today's coding challenge, you'll get two arrays representing the lap times of two speed skaters. You'll need to return the lap number where there's the biggest difference in times. Check it out on the freeCodeCamp mobile app.
February 12, 2026 at 3:15 PM
Winter Olympics, Day 7! For today's coding challenge, you'll get two arrays representing the lap times of two speed skaters. You'll need to return the lap number where there's the biggest difference in times. Check it out on the freeCodeCamp mobile app.
If you want to show that you have a deep understanding of Kubernetes admin, this course is for you. It'll help you study for the Kubernetes Administrator cert exam. You'll learn about cluster architecture, RBAC, workloads and scheduling, networking, & lots more.
www.freecodecamp.org/news/prepare...
www.freecodecamp.org/news/prepare...
Prepare for the Kubernetes Administrator Certification and Pass [2026 update]
We just posted a course on the freeCodeCamp.org YouTube channel to help prepare you for the Certified Kubernetes Administrator Certification. This course is designed to provide a deep, practical…
www.freecodecamp.org
February 12, 2026 at 1:02 PM
If you want to show that you have a deep understanding of Kubernetes admin, this course is for you. It'll help you study for the Kubernetes Administrator cert exam. You'll learn about cluster architecture, RBAC, workloads and scheduling, networking, & lots more.
www.freecodecamp.org/news/prepare...
www.freecodecamp.org/news/prepare...
Git stash lets you temporarily save uncommitted code changes so you can go work on something else without committing incomplete work. It has a bunch of helpful variations, too. Here, Chidiadi shows you examples of git stash push, pop, apply, list, and more.
www.freecodecamp.org/news/how-to-...
www.freecodecamp.org/news/how-to-...
February 12, 2026 at 9:02 AM
Git stash lets you temporarily save uncommitted code changes so you can go work on something else without committing incomplete work. It has a bunch of helpful variations, too. Here, Chidiadi shows you examples of git stash push, pop, apply, list, and more.
www.freecodecamp.org/news/how-to-...
www.freecodecamp.org/news/how-to-...
Design patterns give you proven solutions to common problems in software development. If you've ever struggled with repeatedly creating objects or managing different object types, the factory pattern can help. Here Bala shows how it works in Python with examples.
www.freecodecamp.org/news/how-to-...
www.freecodecamp.org/news/how-to-...
February 12, 2026 at 5:01 AM
Design patterns give you proven solutions to common problems in software development. If you've ever struggled with repeatedly creating objects or managing different object types, the factory pattern can help. Here Bala shows how it works in Python with examples.
www.freecodecamp.org/news/how-to-...
www.freecodecamp.org/news/how-to-...
Here's a practical project to help you improve your Python skills: building a résumé screening system. Abdul focuses on core coding concepts & the power of multi-processing. You'll parse documents, design a scoring algorithm, build a web interface, & deploy it.
www.freecodecamp.org/news/python-...
www.freecodecamp.org/news/python-...
February 12, 2026 at 1:01 AM
Here's a practical project to help you improve your Python skills: building a résumé screening system. Abdul focuses on core coding concepts & the power of multi-processing. You'll parse documents, design a scoring algorithm, build a web interface, & deploy it.
www.freecodecamp.org/news/python-...
www.freecodecamp.org/news/python-...
It's often helpful to visualize your network traffic in real time. So here Chaitanya helps you build a network traffic dashboard with Python & Streamlit. You'll learn how to capture raw network packets, process the data & create real-time updating visualizations.
www.freecodecamp.org/news/build-a...
www.freecodecamp.org/news/build-a...
February 11, 2026 at 9:02 PM
It's often helpful to visualize your network traffic in real time. So here Chaitanya helps you build a network traffic dashboard with Python & Streamlit. You'll learn how to capture raw network packets, process the data & create real-time updating visualizations.
www.freecodecamp.org/news/build-a...
www.freecodecamp.org/news/build-a...
Understanding basic AI and Machine Learning concepts is essential for devs. But getting started and learning all the key terms and core ideas can be overwhelming. In this course, Vladimirs covers concepts like variance, p-values, neural networks, and tons more.
www.freecodecamp.org/news/essenti...
www.freecodecamp.org/news/essenti...
February 11, 2026 at 5:06 PM
Understanding basic AI and Machine Learning concepts is essential for devs. But getting started and learning all the key terms and core ideas can be overwhelming. In this course, Vladimirs covers concepts like variance, p-values, neural networks, and tons more.
www.freecodecamp.org/news/essenti...
www.freecodecamp.org/news/essenti...
Winter Olympics, Day 6! For today's coding challenge, you'll calculate the final score for a figure skating routine. See if you can solve it on the freeCodeCamp mobile app.
February 11, 2026 at 1:02 PM
Winter Olympics, Day 6! For today's coding challenge, you'll calculate the final score for a figure skating routine. See if you can solve it on the freeCodeCamp mobile app.
When you're building an app, different parts need to communicate, within the app & with the outside world. APIs let you do this - and REST is a popular way to architect your APIs. Here, Oliver teaches you key REST API principles by building an Express movie app.
www.freecodecamp.org/news/learn-r...
www.freecodecamp.org/news/learn-r...
February 11, 2026 at 9:01 AM
When you're building an app, different parts need to communicate, within the app & with the outside world. APIs let you do this - and REST is a popular way to architect your APIs. Here, Oliver teaches you key REST API principles by building an Express movie app.
www.freecodecamp.org/news/learn-r...
www.freecodecamp.org/news/learn-r...
Data pipelines let you collect, process, and use huge amounts of data efficiently. But building and maintaining these pipelines can be tricky. In this in-depth course, you'll learn about data ingestion & normalization, data loading, tuning performance, and more.
www.freecodecamp.org/news/data-lo...
www.freecodecamp.org/news/data-lo...
February 11, 2026 at 5:01 AM
Data pipelines let you collect, process, and use huge amounts of data efficiently. But building and maintaining these pipelines can be tricky. In this in-depth course, you'll learn about data ingestion & normalization, data loading, tuning performance, and more.
www.freecodecamp.org/news/data-lo...
www.freecodecamp.org/news/data-lo...
When you're writing code, sometimes you may not even know it's vulnerable until something bad happens. So Manish wrote this guide to help you identify common security issues He talks about missing input validation, poor error handling, no rate limiting, & more.
www.freecodecamp.org/news/what-ma...
www.freecodecamp.org/news/what-ma...
February 11, 2026 at 1:01 AM
When you're writing code, sometimes you may not even know it's vulnerable until something bad happens. So Manish wrote this guide to help you identify common security issues He talks about missing input validation, poor error handling, no rate limiting, & more.
www.freecodecamp.org/news/what-ma...
www.freecodecamp.org/news/what-ma...
When you're building an app, different parts need to communicate - both within the app & with the outside world. This happens through APIs, & REST has become a popular way to architect them. Here Oliver teaches you key REST API principles with an example project.
www.freecodecamp.org/news/learn-r...
www.freecodecamp.org/news/learn-r...
February 10, 2026 at 9:01 PM
When you're building an app, different parts need to communicate - both within the app & with the outside world. This happens through APIs, & REST has become a popular way to architect them. Here Oliver teaches you key REST API principles with an example project.
www.freecodecamp.org/news/learn-r...
www.freecodecamp.org/news/learn-r...
Data pipelines let you collect, process, and use huge amounts of data efficiently. But building and maintaining these pipelines can be tricky. In this course, you'll learn about data ingestion & normalization, data loading, tuning performance, and much more.
www.freecodecamp.org/news/data-lo...
www.freecodecamp.org/news/data-lo...
February 10, 2026 at 5:07 PM
Data pipelines let you collect, process, and use huge amounts of data efficiently. But building and maintaining these pipelines can be tricky. In this course, you'll learn about data ingestion & normalization, data loading, tuning performance, and much more.
www.freecodecamp.org/news/data-lo...
www.freecodecamp.org/news/data-lo...
Winter Olympics, Day 5! For today's coding challenge, you'll get an array of times for a cross-country ski race. You'll need to convert them into times behind the winner's time. Check it out on the freeCodeCamp mobile app.
February 10, 2026 at 2:30 PM
Winter Olympics, Day 5! For today's coding challenge, you'll get an array of times for a cross-country ski race. You'll need to convert them into times behind the winner's time. Check it out on the freeCodeCamp mobile app.
Learning about algorithms is a key step in prepping for dev job interviews. And this course teaches you 10 popular ones that often come up in coding challenges. It covers array chunking, max char, fizz buzz, the pyramid string pattern, and more.
www.freecodecamp.org/news/top-10-...
www.freecodecamp.org/news/top-10-...
February 10, 2026 at 1:02 PM
Learning about algorithms is a key step in prepping for dev job interviews. And this course teaches you 10 popular ones that often come up in coding challenges. It covers array chunking, max char, fizz buzz, the pyramid string pattern, and more.
www.freecodecamp.org/news/top-10-...
www.freecodecamp.org/news/top-10-...
Machine learning lineage is a framework that helps you track & understand an ML model's whole lifecycle. It helps with validation, tracing failures, providing proof of training, & more. Kuriko helps you build an ML lineage using a price prediction model example.
www.freecodecamp.org/news/how-to-...
www.freecodecamp.org/news/how-to-...
February 10, 2026 at 9:01 AM
Machine learning lineage is a framework that helps you track & understand an ML model's whole lifecycle. It helps with validation, tracing failures, providing proof of training, & more. Kuriko helps you build an ML lineage using a price prediction model example.
www.freecodecamp.org/news/how-to-...
www.freecodecamp.org/news/how-to-...
When you're building an application, you likely don't want all users to have the same level of access. This is where role-based access control comes in handy. In this guide, Ayodele teaches you how to set up RBAC with custom claims ising Firebase rules.
www.freecodecamp.org/news/firebas...
www.freecodecamp.org/news/firebas...
February 10, 2026 at 5:01 AM
When you're building an application, you likely don't want all users to have the same level of access. This is where role-based access control comes in handy. In this guide, Ayodele teaches you how to set up RBAC with custom claims ising Firebase rules.
www.freecodecamp.org/news/firebas...
www.freecodecamp.org/news/firebas...