QR codes & barcodes

Scan barcode

Read standard linear barcodes from an image or your camera and export the identifier and detected format as JSON.

Tools will load when you run.

Or scan with your camera

The camera starts only when you press Start camera. Frames are processed locally and are never uploaded.

How to use Scan barcode

  1. Choose your PNG, JPEG, WebP, BMP, GIF.
  2. Upload a clear barcode image or start the camera. Include the full bars and clear side margins.
  3. Read the result locally and download the decoded identifier. The camera stops after a successful scan.

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 standard linear barcodes locally from an image; browser Scan also supports a camera. Use a sharp image with complete bars and clear side margins.

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

vCard to QR codeWi-Fi to QR codeGenerate barcodeText to QR code

Install OneKit

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