Replit

Replit is a browser-based development environment that has reinvented itself around AI. Replit Agent can build entire applications from a description — generating files, installing dependencies, configuring databases, and deploying — all without leaving the browser. The Ghostwriter assistant provides inline AI completions and code explanation. Hacker plan ($25/month) includes Agent and Ghostwriter; Teams plan adds collaboration. Best for: rapid prototyping, learning to code, building demos, and developers who want zero local setup. Particularly powerful for non-developers wanting to build internal tools or simple apps from scratch.