AI Coding Agent

Bolt.new

StackBlitz's in-browser AI builder that generates, runs, and lets you edit full-stack web apps entirely client-side via WebContainers.

Pricing

Free tier, paid plans from $20/mo

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Bolt.new runs entirely in the browser using WebContainers, so the generated app boots, installs npm packages, and runs without any server round-trip. You can prompt changes and watch the live app update instantly.

Why it stands out

Instant execution. No backend provisioning delay — the app runs client-side the moment it’s generated.
Direct file access. You can hand-edit any generated file alongside the AI.
One-click deploy to Netlify from the same interface.

Good for

Fast full-stack prototypes and demos where you want to see a running app within seconds of the first prompt.