Bolt.new

Bolt.new is StackBlitz’s AI-powered full-stack app builder, and it represents a step change in how fast you can go from idea to running application. Describe what you want in plain English, and Bolt generates the complete codebase — frontend UI, backend routes, database schema, environment config — and runs it live in your browser within seconds.

The secret is WebContainers: StackBlitz’s technology that runs a real Node.js environment entirely inside your browser tab, no server required. This means Bolt can install npm packages, run build tools, execute server-side code, and show you a live preview of your app — all without any local setup.

Unlike tools that only generate frontend UI, Bolt handles the full stack. It will scaffold a Next.js app with API routes, wire up a Supabase database, add authentication, and configure environment variables — all from a single conversation. When something breaks, you describe the bug in chat and Bolt patches it.

The in-browser terminal and file explorer let you see exactly what’s been generated and make manual edits alongside the AI. When you’re done, deploy to Netlify or Cloudflare with one click, or download the project to continue locally.

The free tier gives you a daily token budget — enough for several small projects. The Pro plan ($20/month) unlocks significantly higher limits and is worth it if you’re building multiple apps or iterating heavily on a single one. For non-developers, Bolt is one of the most accessible ways to build a real, working web application from scratch.