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
UI
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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
How to Clean Time Series Data in Python
Real-world time series data is rarely clean. Sensors drop out, systems clock-drift, pipelines duplicate records, and manual data entry introduces mistakes. By...
Bala Priya C - 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