Replit is a browser-based development environment that lets you write and run code without installing anything locally. It supports dozens of programming languages and includes an AI assistant that can help generate, explain, or debug code. Projects can be shared with a link, which makes it useful for teaching, pair programming, and getting feedback. The platform also handles hosting for simple web apps.

Beginners often use Replit to start learning a language without worrying about environment setup. More experienced developers use it for quick prototypes, coding interviews, and collaborative experiments. The free tier covers basic use, with paid plans adding more compute and private projects. If you want to test an idea in a few seconds without touching a terminal, Replit is one of the fastest options.