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What Is a Live Preview?

A live preview is a real-time view of your app or web page that updates as you make changes, so you can see exactly how it looks and works before it goes live. It lets you test and refine privately, without publishing anything.

Watch your app take shape as you describe it.

How a live preview works

As you build, the preview reflects your changes as they happen, showing the current version of your app the way a user would see it. Nothing in the preview is public; it's a private working view. This lets you catch problems and adjust the design or behavior while you build, rather than finding issues only after the app is published.

Examples

While building a booking app, a live preview lets you click through the screens and check the flow as you add each part, so you can fix anything off before customers ever see it. On Emergent, you watch your app take shape in a live preview as you describe and refine it, then publish only when it's ready.

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