freeCodeCamp

#Life lessons

Here are 850+ Ivy League Courses You Can Take Right Now for Free

#Certification

1000+ Free Developer Certifications

#education

The Top 100 Free University Courses of the Year (Ranked by Popularity)

#React

Common React Mistakes to Avoid

#Blazor

How to Add Local Storage to Your Blazor Apps with Blazored.LocalStorage

#Python

How to Use Python to Build Your Own Web Scraper

#Docker

How to Create Database Migrations in Go Using Docker and Postgres

#Collaboration

How to Collaborate with Web Development Teams Using Productivity Tools

#open source

How to Become an Open Source Project Maintainer

#dictionary

How to Use DefaultDict in Python

#error handling

Error Handling in Python – try, except, else, & finally Explained with Code Examples

#email

How to Send Emails With Nodemailer in NestJS

#Certification

GitHub Foundations Certification – Exam Prep Guide

#information security

How to Hash Passwords with bcrypt in Node.js

#React

New Features in React 19 – Updates with Code Examples

#Firebase

How to Build a Full-Stack Kanban Task Management App With TypeScript, Next.js, Redux-toolkit, and Firebase

#Object Oriented Programming

How to Build an Online Banking System – Python Object-Oriented Programming Tutorial

#AI

How to Use Claude AI – Introduction to Claude AI + Code Example

#authorization

How to Implement Relationship Based Access Control (ReBAC)

#Form validations

How to Use HTML Forms – HTML Form Basics

#caching

Caching vs Content Delivery Networks – What's the Difference?

#Linux

The Syslog Handbook – How to Collect and Redirect Logs to a Remote Server

#bots

How to Create a Music Bot Using Discord.js – Step-by-Step Tutorial

#data analysis

Essential SQL Concepts for Data Analysts – Explained with Code Examples

#CSS

How to Use the :has() Selector in CSS