QR codes & barcodes

JSON to QR code

Encode compact JSON data in a standard QR code with configurable PNG or SVG output.

Tools will load when you run.

Keep dark modules on a light background. A quiet zone of at least four modules and high contrast help phones read the code. SVG scales cleanly for print.

How to use JSON to QR code

  1. Choose your JSON or paste text into the editor.
  2. Paste valid JSON or upload a JSON file, then choose QR output settings.
  3. Download the code. QR code to JSON can recover the original JSON data from its image.

Formats and requirements

Input formats
JSON
Output
PNG
Availability
Free in your browser and through the CLI
Files per operation
1
Browser file limit
0.02 MiB per file, 32 MiB total

What to expect

Creates a standard QR code locally. Capacity depends on the content and error correction. Keep the quiet zone and test the code before printing.

Do my files leave my device?

No. Thanks to advanced file-processing technology, your files are processed directly on your device, inside your browser. OneKit does not receive your input files or results. Required public processing libraries may download when you first use the tool.

File privacy and local processing →

Related tools

QR code to JSONImage to Base64Image to PDFImage to PowerPoint

Install OneKit

Keep OneKit in its own app window, with a shortcut on your device.