QR codes & barcodes

Reverse QR code

Decode a QR image to reveal its stored text, link, Wi-Fi credentials, contact card or JSON data.

Tools will load when you run.

How to use Reverse QR code

  1. Choose your PNG, JPEG, WebP, BMP, GIF.
  2. Upload an image showing the complete QR code, including its border.
  3. Download a JSON report. Original generator settings and the image behind a link cannot be recovered.

Formats and requirements

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

What to expect

Reads QR payloads locally from an image; Scan also supports a browser camera. Reverse reveals the stored content, not the original image or generator settings. No links are opened automatically.

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 →

Install OneKit

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