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Online Barcode Scanner

Scan Barcode with your smartphone or web camera

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Scan Barcode

scan barcode

Conholdate.Barcode Scanner is a free online app that provides advanced features to scan Barcode using your web or smartphone camera. Simply point your camera toward to a Barcode and application will automatically parse and analyze it. Barcode Scanner app support all most popular BarcodeCode formats, such as PDF417, EAN, UPC, ISBN, ISSN, Bookland, UCC-128, EAN-128, SSCC-18, Code 128, 2D and more.

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How to

How to
  1. Click on allow to use your phone/web camera when asked.
  2. Scan QR code with your camera.
  3. Select one of three available reading qualities: fast, normal, excellent.
  4. Click on "Scan" button.
  5. Wait until file is processed.
  6. Copy or share scanned output.

FAQ

It is usually letters and numbers. For some barcodes you can choose a specific set of characters(symbology). This information usually represents some description of an item on what barcode is placed.

It is usual to be about 25 characters for 1D barcode and about 2000 for 2D one. Of course the more characters you encode the bigger is barcode. 1D barcode could became impractically wide if it is more than 15 characters encoded.

It is a combination of contrast marks that scanner can read and decode. For 1D barcode it is black and white vertical lines of different thickness. For 2D it is usually a pattern of square dots. Scanner uses some algorithms to decode those patterns into a form suitable for user.

For some types of barcodes it is important. For ITF-14 size is required to be 142.75 mm wide and 32 mm high. For EAN-13 it is required to be 37.29 mm wide and 27.85 mm high.