Question: I need a website that allows me to practice coding challenges and build projects directly in the browser.

If you want a site where you can take coding challenges and build projects in the browser, Codedamn is a good choice. It's got interactive lessons, real-world coding challenges and AI-assisted help. With more than 100 projects, including language-specific playgrounds, you can work on your own or with friends and get feedback on your code. The site has community features, too, so it's good for beginners and experienced programmers who want to improve their skills.

Another good option is Replit, a cloud-based environment where you can write, share and deploy software as quickly as possible. Replit is a full-featured environment for building websites, automations and internal tools, with collaboration tools, AI code generation and secure deployment options. That makes it a good fit for programmers who need a flexible and easy environment.

RunCode is a high-performance, customizable online coding environment. It supports a broad range of programming languages and integrates with common frameworks and databases. With features like real-time workspace sharing and generative AI-powered code completion, RunCode is a good fit for full-stack developers who need a secure and collaborative development environment.

If you're interested in web development, W3Schools Spaces lets you build and host websites directly in the browser. It's got a code editor, terminal and variety of AI tools to help you get work done. With the ability to build both static and full-stack sites, W3Schools Spaces is good for a broad range of developers, from beginners to full-stack pros.