freeCodeCamp

Learn to Build Automated Workflows with Manis AI

Beau Carnes |
We just posted a complete guide to Manis AI over on the freeCodeCamp.org YouTube channel. Created by Beau Carnes (thats me!), this course will teach you how you can use agentic AI to automate real-wor... read more

How to Protect Your Privacy Online in 2026

Manish Shivanandhan |
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 VPN, browse in incognito mode, or occasion... read more

How to Build a Browser-Based PDF Watermark Tool Using JavaScript

Bhavin Sheth |
PDF watermarks are commonly used for branding, document protection, approvals, confidential files, and internal document tracking. Whether it’s adding a company logo, a “CONFIDENTIAL” label, or a draf... read more

AI Paper Review: Language Models are Few-Shot Learners (GPT-3)

Mohammed Fahd Abrah |
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 had already started producing surprising abi... read more

How to Clean Time Series Data in Python

Bala Priya C |
Real-world time series data is rarely clean. Sensors drop out, systems clock-drift, pipelines duplicate records, and manual data entry introduces mistakes. By the time a dataset reaches your notebook,... read more

7 Tools Digital Nomads Need in 2026

Manish Shivanandhan |
Digital nomadism has changed dramatically over the last few years. What started as a lifestyle trend for freelancers and travel creators has evolved into a serious way of working for developers, consu... read more

How to Build a Calculator with Tkinter in Python

Sara Jadhav |
In this tutorial, you'll learn how to create a simple arithmetic calculator in Python with Tkinter. The project will be one of your first steps towards building an actual GUI in Python. This is a hand... read more

How to Build an Autonomous OSINT Agent in Python Using Claude's Tool Use API

Tommaso Bertocchi |
When I started studying OSINT, I always felt I was just putting random values into software without deeply understanding what I was doing. After months in the field, I realized I wasn't really investi... read more

Common DevOps Mistakes and How to Avoid Them — Tips for Startups

Tolani Akintayo |
Most DevOps engineers don't fail because they lack knowledge about tools. They fail because nobody told them what not to do before they got into production. Startup environments make this worse. The p... read more

Claude Code for Beginners

Beau Carnes |
AI-powered coding has evolved beyond simple chat interfaces. The latest leap forward is Claude Code, a command-line tool from Anthropic that lives directly in your terminal and understands your entire... read more