Run Claude, Codex and more

Code with Claude Code, Codex & OpenCode

Run terminal coding agents with live, instant previews. Build full-stack Next.js and Vite apps in secure sandboxes.

View Demo

Run anyNode framework

Next.js
TanStack Start
Vite
Hono
Astro
React Router
Express
Node

Everything your agent needs to build.

Claude Code v2.1.310
Welcome back Sam!
Opus 5.5
Frontend
~/my-app
Tips for getting started
Ask Claude to build a feature
What's new
Runs in the browser
Terminal and previews
/release-notes for more
add a counter and a button that calls /api/hello
Bash(bun run build)Compiled successfully in 1.2s
Done. The home page has a counter and a Send request button that calls /api/hello.
xhigh · /effort
auto mode on (shift+tab to cycle) · ← for agents

Run Claude Code, Codex, OpenCode and Pi.

The frontier coding agents you already use, ready in every project with a terminal and a live preview.

Live, instant previews.

Watch your app update in real time with hot reload as your agent writes code.

GitHubRepos, branches and commit history

Native integrations including Supabase & Github

Every agent gets MCP access to your native integrations including Supabase, Shopify, Stripe, Figma and more.

Secure sandboxes. Unlimited compute.

Run your sandboxes with unlimited compute in the browser runtime or upgrade to use server-side VMs.

Next.js logo
Vite logo
TanStack Start logo
Astro logo
React Router logo
Express logo

Run Next.js, Vite, and more.

Start from Next.js, TanStack Start, Vite + Hono, Astro, React Router or Express, or import any repository from GitHub.

Designed for product teams that ship.

Choose your Node framework

A framework starter, a template from the gallery, or a repository from GitHub.

Bring your agent harness

Tell OpenCode, Claude Code, Pi or Codex what to build, right in the project terminal.

Live preview environments

The dev server runs in your browser or on a server, and the preview updates on every change.

Deploy to production

Deploy your app live or sync to GitHub. Powerful website analytics with every app.

Start for free. Scale to millions.

Build on any device with nothing to install, and move a project to a server when your team needs more compute.

BuildBrowser compute on every plan
PreviewAn isolated environment per project
DeployGlobally available

Frequently asked questions

Dream it.Build it.

Start for free. Cancel anytime.