AI coding glossary
Bolt.new
Also known as: bolt, stackblitz bolt
In one sentence
StackBlitz's browser-based AI app builder, generates and runs a full web app in WebContainer right in the browser tab.
Full definition
Bolt.new is StackBlitz's browser-based AI app builder. You describe a web app; Bolt generates the code (typically Next.js + Tailwind + a SQLite database), runs it in WebContainer in your browser tab, and lets you iterate by chatting. The unique trick is WebContainer, full Node.js runs locally in your browser via WebAssembly, so there's no server roundtrip for execution. Bolt is in the 'AI app builder' category with Lovable, v0, and Replit Agent. It's strongest for marketing sites, dashboards, and tool prototypes; weaker for production-scale apps with complex backend needs.