freeCodeCamp just posted a Harvard University course that will give you a solid introduction to cybersecurity. It’s taught by one of the world’s most-loved computer science teachers, Dr. David J. Malan. In this course, you’ll learn how to secure your accounts, data, systems, and software against today’s threats. You’ll also learn how to recognize and […]
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I was a year into my new job at Google. After repeated warnings about underperformance, my manager sat me down. I was being placed on a Performance Improvement Plan (PIP). For those unfamiliar, a PIP at Google is a two-month plan to show improvement – a final chance to prove yourself. You’re given a project […]
Artificial intelligence is evolving at a remarkable pace. Models today can reason, write, code, and analyze information in ways that once seemed impossible. But there’s one major limitation that still holds them back: context. Most AI models don’t have access to your system, files, APIs, or live data. They only know what you tell them […]
When most people think about learning to code, they imagine building websites or automating small tasks. Few think of building games as a serious way to improve programming skills. But creating even a simple game can teach lessons that no tutorial ever could. Games force you to think about performance, user input, structure, and creative […]
Mobile app development lets you build applications that run on multiple platforms. Flutter is Google’s UI toolkit for building applications for mobile, web, and desktop from a single codebase. Flutter apps are written in Dart, a statically typed, object-oriented language. Modern mobile development requires understanding widgets, state management, navigation, and data storage. The ecosystem includes […]
Since the advent of microservices, development teams have gained the flexibility to deploy services independently, without coordinating with the entire engineering organization. Bug fixes can be released in isolation without full regression testing, and multiple teams can ship updates simultaneously, sometimes ten or more deploys a day per team. But we rarely talk about the […]
Eric Carlson is a self-taught software engineer at Cisco. In his early 20s, he worked his way up to manager at the busiest Dominos Pizza in Canada. He eventually went to college and studied liberal arts, then worked as a teacher for two decades before teaching himself programming using freeCodeCamp. He got his first developer […]
When people talk about AI agents, they often imagine something futuristic that can think, talk, and make decisions. But the truth is, AI agents are already here. And they are working quietly in the background. They answer customer questions, schedule meetings, write code, and even send emails automatically. The reason they can do all this […]
React is one of the most powerful and widely used libraries for building user interfaces with JavaScript. From small components to large-scale front-end and full-stack applications, React gives you the flexibility to create interactive, efficient, and modern features. But learning React can feel overwhelming. With so many new terms, patterns, and frameworks like Next.js in […]
In this tutorial, you’ll build a To-Do list MCP server using TypeScript. You’ll learn how to implement authentication, persistence, and billing, to make the server robust and functional for real users. By the end, you’ll have a working MCP server that: Authenticates users with Kinde. Stores to-do data in a Neon Postgres database. Enforces billing […]