The freeCodeCamp.org Copyright Policy
Copyright PolicyThis policy describes how we at Free Code Camp, Inc., the (501(c)(3) nonprofit behin …
Product
How the Mixture of Experts Architecture Works in AI Models
Artificial intelligence (AI) has seen remarkable advancements over the years, with AI models growing …
How to Build an Automatic Knowledge Graph for Your Blog with PHP and JSON
When someone searches for information today, they increasingly turn to AI models like ChatGPT, Perpl …
CSS Color Functions
If you asked me a few months ago, “What does it take for a website to stand out?” I may have said fa …
How to Build a Browser
June 7, 2026 / #Ja …
How to Build a Spam Email Detector with Python and Naive Bayes Classifier
Ever wondered how Gmail knows that an email promising you $10 million is spam? Or how it catches tho …
What is Shadow AI? The Hidden Risks and Challenges in Modern Organizations
Imagine this: a marketing manager uses ChatGPT to draft a personalized email campaign. Meanwhile, a …
freeCodeCamp's Terms of Service
These terms govern use of the website https://www.freecodecamp.org. To use the website, you must agr …
Learn JavaScript for Beginners – JS Basics Handbook
July 6, 2023 / #be…
CSS Functions Guide
IntroductionLike any other programming language, CSS has functions. They can be inserted where you’d …
Product Experimentation with Propensity Scores: Causal Inference for LLM
Every product experimentation team running causal inference on LLM-based features eventually hits th …
Creating Memorable Web Experiences: A Modern CSS Toolkit
I love the fact that CSS is finally reclaiming control over visual interactions, taking charge of th …
Microservices
#Microservices …
How to Use Bash & Python for Real DevOps Automation – Full Handbook with 5 Production Use Cases
Automation scripts often validate process completion instead of system health.A Kubernetes pod can b …
How to Convert Images to PDF in the Browser Using JavaScript – A Step
Whether it’s scanned documents, screenshots, receipts, notes, certificates, or multiple photos, user …
How to Build an Autonomous OSINT Agent in Python Using Claude's Tool Use API
When I started studying OSINT, I always felt I was just putting random values into software without …
The GraphQL API Handbook – How to Build, Test, Consume and Document GraphQL APIs
May 2, 2023 / #api …
How I Completed 15 freeCodeCamp Certifications in 4 Months: A Structured Learning Journey
Can you achieve a massive milestone while you're still in high school other than just getting high g …
Data Science Insights: Why the Mean Lies When Handling Messy Retail Data
In our daily life, we use the word "average" all the time: average salary, average marks, average ag …
How to Build a Positioning
Commitment of Traders (COT) data gets referenced a lot in commodity trading, especially when people …