JsonaizerJSONPDF
Free · Runs entirely in your browser

Turn and filter your JSON into a
PDF report in seconds

Upload a JSON file or paste raw data, filter what you need, map fields, and download a structured PDF report right away.

Drag & drop JSON

or tap to upload and jump to editing

How it works

1

Upload your JSON

Drag & drop a .json file or paste raw JSON into the editor. Any structure — flat or deeply nested — is supported.

2

Map the fields

Pick your title field and iterator array. Add, label, reorder, and format individual fields with one click.

3

Download the PDF

Click Generate. A fully structured, searchable PDF report is created and downloaded to your device instantly.

Features

Handles large datasets

UI virtualization keeps the interface smooth even with thousands of records. Preview up to 500 items; PDF includes all.

Dynamic field mapping

Automatically detects all keys, nested paths (dot-notation), and data types from your JSON structure.

Drag-to-reorder

Reorder PDF columns effortlessly with drag-and-drop. Changes are reflected live in the preview.

Selectable text

Generated PDFs contain real, searchable, selectable text and include document metadata — never rasterized images.

Fully private

Everything runs in your browser via WebAssembly. Your JSON data never leaves your device.

Multiple formats

Render each field as plain text, bold label, bullet list, or a colored badge — mix and match freely.