Docs/Guides/First Project

Create Your First Project

Step-by-step guide to generating your first UI from video.

Before You Start

  • A Replay account (sign up at replay.build)
  • A screen recording of any UI (5-60 seconds)
  • At least 1 credit in your account

Recording Tips

The quality of your recording directly affects the generated UI. Follow these tips:

Do:

  • • Record at 1080p or higher
  • • Show all navigation states
  • • Hover over interactive elements
  • • Move slowly through the UI
  • • Record both desktop and mobile views

Avoid:

  • • Blurry or low-quality video
  • • Quick scrolling or fast movements
  • • Cropped or partial views
  • • Screen glare or reflections
  • • Videos longer than 2 minutes

Step by Step

Step 1: Open Replay

Go to replay.build and sign in to your account. You'll see the main editor interface.

Step 2: Upload Your Video

Click the upload area or drag & drop your video file. Supported formats: MP4, WebM, MOV.

Step 3: Add Context (Optional)

In the context field, describe what you're building. Example: 'E-commerce product page with cart functionality'

Step 4: Generate

Click 'Generate' and wait 30-60 seconds. The AI analyzes your video frame by frame.

Step 5: Review Your UI

Preview your generated UI. Use the Flow Map to see all detected pages.

Troubleshooting

Generation Failed?

Try a shorter video or check your internet connection. Complex animations may cause issues.

UI Looks Different?

Use Edit with AI to refine colors, fonts, or layout. The AI interprets - it doesn't pixel-perfect copy.