Bolt.new

Bolt.new is an AI tool for building web and full-stack applications directly in your browser, developed by StackBlitz. Instead of writing code line by line, you simply tell it what you want to build and it generates a complete app including frontend, backend and database. It's ideal for founders, marketers, product managers and beginner coders who need to validate an idea quickly without a heavy programming background.

It works through chat: you enter a prompt describing your app and within moments Bolt creates the code across multiple files, installs dependencies and shows you a live preview you can interact with right away. You click buttons, fill in forms and see exactly what you're getting. When you want to change something, you either type it into the chat or edit the code manually in the built-in editor.