See Your App Come to Life
Vulk's server-side preview system renders your application in real time as it is generated and edited. No need to install dependencies, run build commands, or configure development servers. Your app is always visible, always up to date, and works on every device.
What's included
The preview system runs on dedicated servers with Vite HMR for instant hot module replacement. Every change you make is reflected immediately.
- Instant rendering -- See your app the moment code is generated.
- Hot module replacement -- Changes appear in milliseconds without full page reloads.
- Cross-browser support -- Works on Chrome, Firefox, Safari, and mobile browsers.
- Mobile preview -- Test responsive layouts on any device without deploying.
- Server-side execution -- No heavy WebContainer in your browser, keeping things fast.
- Shareable preview links -- Send a preview URL to teammates or clients.
Use cases
Perfect for teams who need fast visual feedback during the build and review process.
- Developers -- Iterate on UI and logic with instant visual feedback.
- Designers -- Review generated layouts and components in real time.
- Product managers -- Approve features before they go to production.
- Client reviews -- Share a live preview link for feedback without deploying.
- QA teams -- Test across devices during development, not after.
Built-in performance and reliability
The preview infrastructure is designed for speed and stability across all project types.
- Dedicated preview servers with warm pool of pre-initialized Vite instances.
- Pool management with automatic cleanup and resource optimization.
- Works with React, Flutter, and Three.js projects.
- Low latency with European server locations.
- No browser memory overhead -- everything runs server-side.