Drag & Drop UI with Real-Time Progress

Built the converter interface with drag-and-drop upload, automatic format detection, output format grid, and real-time conversion progress tracking.

The conversion engine is powerful, but it needs a good interface. Here's what we've built:

Upload experience

  • Drag & drop or click to browse — works on desktop and mobile
  • Automatic format detection — we identify your file type instantly
  • Unsupported formats get a clear error message

Output format selection

A visual grid of all available output formats. Each format shows its badge, full name, and file extension. Click one to start converting.

Progress tracking

Real-time status updates as conversion progresses:

  1. "Preparing conversion engine..."
  2. "Reading file..."
  3. "Building 3D model..."
  4. "Optimizing output..."
  5. "Conversion complete!" — ready to download

Privacy notice

A persistent badge reminds users: "Privacy Protected — files never leave your device." Because that's the whole point.