5 Websites Every Programmer
Should Bookmark

One of the biggest struggles for beginners — and even intermediate developers — is not knowing what to learn next. roadmap.sh solves that completely. It provides visual, step-by-step learning roadmaps for almost every tech path: Frontend, Backend, DevOps, Full Stack, React, Python, Cybersecurity, and more. Each roadmap breaks down exactly what to learn and in what order.

freeCodeCamp is one of the most trusted free learning platforms in the programming world — and for good reason. It offers hundreds of hours of structured, hands-on curriculum covering HTML, CSS, JavaScript, Python, Data Structures, Algorithms, and more. The project-based approach means you build real things, not just read theory. Plus their blog is packed with top-tier tutorials.

Let's be honest — regular expressions are confusing. Even experienced developers Google regex syntax constantly. That's where regex101.com comes in. It's a real-time regex tester and debugger that explains your pattern step by step as you type. Paste in your text, write your regex, and watch it highlight matches while the sidebar explains every single character of your expression.

If you're a programmer and not actively using GitHub, you're missing the most important platform in the entire dev ecosystem. GitHub is where the world's code lives — open-source projects, personal portfolios, collaborative teams, everything. Beyond storing code, it's where you build your developer reputation, contribute to open source, and showcase work to employers.

CodePen is a browser-based code playground for HTML, CSS, and JavaScript. It's the perfect place to test a quick idea, experiment with animations, or share a snippet without any setup. The community aspect makes it even better — browse thousands of "pens" built by other developers, fork them, learn how they work, and remix them for your own projects.