File upload

Variants of the file upload scenario, each on its own isolated page.

• Upload + download (baseline)

  Pick any file and click the sample download. Browser-download detection optional.

  • file
  • upload
  • download

• Drag & drop dropzone

  Drag and drop any file directly onto a visually animated dropzone container to upload it.

  • file
  • upload
  • drag-and-drop
  • dropzone

• Multi-file queue & deletion

  Upload multiple files, review them in a dynamic active list, and delete a specific item before submitting.

  • file
  • upload
  • multi
  • list
  • queue
  • delete

• Format & size validation

  Upload a file that triggers validation errors (format or size limits) and recover by uploading a valid file.

  • file
  • upload
  • validation
  • restriction
  • error
  • recovery