Export Form Data (JSON) - Free Online Browser Tool

Export form data values to JSON format.

Form data and form design are separable, and that separation is useful: you can fill a form once, export the answers as JSON, and reuse that data as a template for the next identical document. This tool performs that export.

This export form data (json) utility runs completely inside your web browser. Your document is opened locally and processed on your own device using JavaScript and WebAssembly, so your file is never uploaded to any server. There is no signup, no watermark and no limit on how many documents you can handle.

  • 100% client-side - files never leave your device
  • Instant processing, no upload wait
  • Works on desktop, tablet and mobile
  • Free forever, no account required

Common next steps: Fill PDF Form Fields, Inspect & List Form Fields, Rename Form Fields, Fill PDF Forms from CSV.

How to Use the Export Form Data (JSON) Tool

Four steps, and the whole thing runs locally on your own device.

  1. Load the filled form

    Drop in a PDF whose fields you have already completed.

  2. Export the field values

    All current field values are written to a structured JSON document keyed by field name.

  3. Inspect the JSON

    The export is plain text you can read, diff and edit — and feed back in to prefill the same form next time.

  4. Download the data file

    Save the JSON alongside the PDF. Reopening the same form later with these values restores your answers.

Frequently Asked Questions

What can I do with the exported JSON?

Load the same form again and prefill it with those values, which saves retyping everything when you process many similar documents.

Does the export include empty fields?

Empty fields appear with empty values so the JSON mirrors the form’s full field structure rather than only the answers.

Is any of this sensitive data uploaded?

No. The export is produced entirely in your browser. Because form data is often personal information, treat the JSON file as carefully as you would the PDF itself.

What if a field name contains unusual characters?

Names are used as JSON keys verbatim, including spaces and punctuation, so they match exactly what you see in the field list.

Can I edit the JSON before using it?

Yes, and it is a reasonable thing to do — correcting a mistyped value or setting a field for a batch of documents is far faster in text than in the form.