Think Like the JavaScript Engine
Most developers learn JavaScript by memorizing rules and copying framework patterns. But when a weird production bug hits or a senior engineer asks a deep...
Beau Carnes - freecodecamp
Development
UI
How to Build a Browser-Based PDF Watermark Tool Using JavaScript
PDF watermarks are commonly used for branding, document protection, approvals, confidential files, and internal document tracking. Whether it’s adding a...
Bhavin Sheth - freecodecamp
Design
Learn LaTeX in 41 Hours
Traditional word processors require you to act as a writer, layout designer, and typesetter all at once. LaTeX automates the tedious design mechanics so you...
Beau Carnes - freecodecamp
Other
How to Avoid Rebuilding Infrastructure for Every New Project
Every production engineering team knows the pattern. A new project begins with energy. Product goals are clear. Deadlines are ambitious. Teams want to move...
Manish Shivanandhan - freecodecamp
How to Use GitHub Search Like a Pro
GitHub is a popular code collaboration platform for developers. You can use it to share, manage, and contribute to open-source codebases, save and work on...
Rajdeep Singh - freecodecamp
How to Encrypt Kubernetes Traffic with cert-manager, Let's Encrypt, and Internal TLS
Most engineers assume their Kubernetes cluster encrypts all of its traffic. It doesn't. The commands you run with kubectl are encrypted — your client and the...
Destiny Erhabor - freecodecamp
How to Migrate from ASP.NET Framework to ASP.NET Core
Migrating to ASP.NET Core is a strategic upgrade that improves performance, scalability, and cross-platform support. Instead of a risky full rewrite, you can...
Gopinath Karunanithi - freecodecamp
Learn to Build Automated Workflows with Manus AI
We just posted a complete guide to Manus AI over on the freeCodeCamp.org YouTube channel. Created by Beau Carnes (thats me!), this course will teach you how...
Beau Carnes - freecodecamp
How to Protect Your Privacy Online in 2026
Online privacy has never been more talked about, yet it has never been more misunderstood. In 2026, most people believe they are “covered” because they use a...
Manish Shivanandhan - freecodecamp
AI Paper Review: Language Models are Few-Shot Learners (GPT-3)
After GPT-2, it became clear that language models could do much more than researchers originally expected. Simply training a model to predict the next word...
Mohammed Fahd Abrah - freecodecamp
Advanced Tree Counting: Mathematical Layouts With `sibling-index()` And `sibling-count()`
Meet `sibling-index()` and `sibling-count()`. Staggered cascade effect in one line of CSS without `:nth-child()` rules or JS workarounds. Works for 5 items or 5,000.
Durgesh Pawar - smashingmagazine