File uploads

Add a normal <input type="file"> and include the script. Formclick turns each file input into a drag-and-drop zone with a file list, progress bars and remove buttons.

<form action="https://api.formclick.io/submit" method="POST">
  <input type="hidden" name="access_key" value="YOUR_ACCESS_KEY">
  <input type="text"  name="name"  required>
  <input type="email" name="email" required>

  <!-- One file, PDF or Word only -->
  <input type="file" name="resume" accept=".pdf,.doc,.docx">

  <!-- Several files, images or PDF -->
  <input type="file" name="work_samples" accept="image/*,.pdf" multiple>

  <button type="submit">Submit application</button>
</form>

<!-- Handles submit, file upload, loading state and success/error messages. -->
<script src="https://cdn.formclick.io/formclick.min.js"></script>

Attributes

Limits

• 5 MB per file. Larger files are rejected in the browser with a clear message, and the server enforces the same limit.
• Duplicate files (same name and size) are only added once.
• Uploads retry automatically up to 3 times with back-off if the connection drops.

How it works

1. When the visitor submits, the script asks Formclick for a one-time upload URL for each file.
2. Each file uploads directly to secure storage in parallel, so large files never pass through the form endpoint.
3. The submission is sent with a link and details for every file.

In the saved submission a single file looks like this (a multiple field holds a list of these):

{
  "name": "Jane Smith",
  "resume": {
    "name": "jane-smith-cv.pdf",
    "size": 248133,
    "type": "application/pdf",
    "url": "https://…"
  }
}

Next: Advanced file uploader for size limits and styling, and File attachments for how files reach you.