Barcode vs QR Code: Which One Should You Use for Labels, Links and Payments?
Barcodes and QR codes look different and solve different problems. A barcode is a row of bars that stores a short code, and a QR code is a square pattern that can store much more. Choosing the wrong one makes labels harder to scan or impossible to use with the system you have. This guide explains the difference, how to choose a barcode format and how to print and test both.
The basic difference
A barcode is one-dimensional: information runs left to right across the bars, so it holds only a short value, usually a number or a small piece of text. A QR code is two-dimensional, which lets it hold much more, such as a web link, text, a Wi-Fi login or a payment link, and it can be read from different angles. Barcodes are the standard in shops and warehouses, while QR codes are built for phone cameras.
When a QR code is the better choice
- Sharing a web link, menu or profile: URL QR Code.
- Letting guests join Wi-Fi: Wi-Fi QR Code.
- Collecting a UPI payment: UPI QR Code.
- Starting a WhatsApp chat: WhatsApp QR Code.
The codes created on PraxTools are static, so the information is stored in the picture itself and cannot be changed or tracked later.
Choosing a barcode format
The Barcode Generator offers five formats. Each accepts only certain values:
| Format | Accepts | Typical use |
|---|---|---|
| Code 128 | Letters, digits and symbols | Inventory and internal labels |
| EAN-13 | 12 digits (check digit added) or 13 digits with a correct check digit | Retail products |
| UPC | 11 digits (check digit added) or 12 digits with a correct check digit | Retail products, mainly in North America |
| Code 39 | Capital letters, digits and - . space $ / + % | Asset tags, older systems |
| ITF-14 | 13 digits (check digit added) or 14 digits with a correct check digit | Cartons and outer packaging |
If you are not sure, Code 128 is the most flexible choice for your own labels. A wrong check digit in a retail format is rejected, and lowercase letters in Code 39 are converted to capitals.
Retail product barcodes are not just a drawing
A barcode generator draws the bars. It does not give you an official product number. If you sell products through retail stores or marketplaces that need registered EAN or UPC codes, you must obtain the numbers from the official issuer, which in India is GS1 India. For tracking your own stock, shelves or files, an internal numbering scheme with Code 128 labels is usually enough.
Printing tips for both
- Keep strong contrast: dark on a white background. Avoid inverted or coloured codes.
- Leave empty space (a quiet zone) around the code and do not crop it.
- Do not stretch a code unevenly. Resize it in proportion.
- Print large enough to scan comfortably. Tiny barcodes with thin bars may fail on low-quality printers.
- A barcode download from PraxTools is an SVG, which stays sharp at any size. QR codes download as PNG images.
Scanning tips
The Barcode Scanner reads common one-dimensional barcodes and QR codes with your camera or from a picture. For long barcodes, move the camera back until the whole code fits inside the scanning box. Avoid glare, steady the phone and tap to focus. A scanned barcode shows only the number or text stored in it, so a retail barcode will not show a product name or price. To read a QR code from a screenshot, use the QR Code Scanner.
Frequently asked questions
Can a barcode hold a website link?
A barcode can technically store text, but long links make very wide, hard-to-scan barcodes. A QR code is the right tool for links.
Which barcode type is best for inventory?
Code 128 is a common choice because it accepts letters, digits and symbols.
Can I use a generated barcode in a shop?
For retail sale you need registered numbers from the official issuer, such as GS1 India. This tool does not issue product numbers.
Are QR codes safer than barcodes?
Neither is inherently safer. A QR code can lead to any website, so read the link before opening it, and be careful with codes in public places.
Try the tools mentioned
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