Live Preview

Test your application in real-time as you build with Juliet's integrated live preview browser.

Written By Samir Patel

Last updated 3 months ago

Overview: Live preview shows your running application in real-time, updates automatically when AI makes changes, test functionality immediately, catch issues early, iterate faster.

How It Works: Development server runs in container, preview loads at localhost URL, changes reflect immediately, hot reload enabled for most frameworks, refresh button available if needed.

Preview Features: Full browser functionality (click, scroll, forms, navigation), responsive design testing, console access (view errors and logs), network inspector, interact like real app.

Testing Your App: Navigate pages, submit forms, test interactive elements, check responsive breakpoints, verify functionality, identify bugs.

When Preview Updates: Automatically after AI completes changes, after manual file saves, on page navigation, when development server restarts.

Troubleshooting: Blank preview (check terminal for errors, ensure dev server running), not updating (click refresh button, check for build errors), slow loading (check network, large assets may delay).