What is Design Mode?
Design Mode lets you create beautiful, interactive websites and app designs in just a few minutes. Simply describe your idea and Replit builds it for you. Design Mode is perfect for:- Testing your ideas quickly: Visualize your app’s design before building functionality
- Creating polished websites: Landing pages, portfolios, restaurant menus, event pages
- Fine-tuning your design: Adjust colors, layouts, and content instantly
Design Mode apps look and feel like real apps, but they don’t store data or connect to external services yet. When you’re happy with how everything looks, you can convert your design into a full app with one click. The steps below show you how.
What is App Mode?
App Mode creates real, working applications that can save data, let people sign in, and connect to other services. Use App Mode when your app needs to:- User accounts: Let people create accounts and log in
- Save information: Store data like orders, messages, or user preferences
- Connect to other services: Process payments, send emails, or pull in data from other apps
- Handle complex tasks: Run an online store, manage bookings, or power a dashboard
See the difference in action
This comparison shows the same restaurant menu built in both modes using an identical prompt. Switch between tabs to see what each mode created:- Design Mode
- App Mode
Design Mode — Built in 1 minute
- Beautiful, polished design
- Elegant typography and layout
- Perfect for showcasing your vision
- Static menu (no ordering functionality)
Using both modes together
Design Mode and App Mode are built to work together. You don’t have to choose one or the other. You can start with design and evolve into a full app.Design first
Start in Design Mode to quickly visualize your idea. Focus on how your app looks and feels—the layout, colors, buttons, and user experience.
Refine and iterate
Use the Visual Editor to click directly on elements and adjust them, or chat with Agent to describe changes you want. The changes will appear immediately.
Convert to a full app
When you’re happy with your design and ready to add real functionality, click the Design button on the top left, then click “Convert to App” in the menu. Agent will add the ability to save data, handle user accounts, and connect to services—all while keeping your design intact.
Agent will prompt you to convert to App Mode when you try to add a database or advanced features.
When to use each mode
Start with Design Mode
- You want to see your idea quickly
- You’re creating a simple website
- You want to test different designs
- Speed is your priority
Go straight to App Mode
- You know exactly what you need
- Your app must save data from day one
- People need to log in
- You’re connecting to other services
Key differences
| Feature | Design Mode | App Mode |
|---|---|---|
| Speed | A few minutes | About 10 minutes for complete apps |
| Data storage | Visual only (no saving) | Saves and retrieves real data |
| User accounts | Shows what login looks like | Actual login functionality |
| Connecting to services | Not available | Payments, emails, external data |
| Hosting | Simple static hosting | Scales with your audience |