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What is a barcode?

We frequently overlook barcodes even though we see them every day. After all, they usually amount to nothing more than a few tiny lines and numbers on the back of the things we purchase. But in fact, barcodes are essential to making retail stores run efficiently. In the 1970s, barcodes started to become widely used in commerce, especially in the supermarket sector. They are a machine-readable form of important data storage. They have become standard over time and have been accepted by various regulatory committees. Because there are so many types of barcodes available today, it can be difficult to understand how to use them, what they do, and how valuable they are to retailers.

1). A barcode is a machine-readable encoding of characters or numbers that consists of bars and spaces. Today's product packaging in hypermarkets, corner shops, and other stores commonly has the label with stripes seen below. These are barcodes. An optical barcode scanner can read a barcode, which is formed of different-sized bars and spaces.

2). A barcode is a rectangular or square picture that can be read by a scanner and is made up of numerous parallel black lines and spaces of various widths. Items are marked with barcodes for simple identification. Among many other purposes, they are used on invoices to help with accounting, in warehouses to manage inventory, and in retail outlets as part of the purchasing process.

Types of Barcodes


There are primarily two kinds of barcodes:

One Dimension: The barcodes that appear on product boxes or stickers are probably the ones you are most familiar with. Top-to-bottom scanning is the only dimension used to read 1D barcodes. In a similar vein, they only differ in one dimension to produce various characters. Depending on the number of bars in the UPC, there are a variety of 1D barcode subtypes. They start with eight bars and go up to fourteen.

Two-Dimensional: A slightly more recent innovation is the use of 2D barcodes. Undoubtedly, the QR code, which is frequently used to store website URLs, is the most well-known 2D barcode. Due to their ability to store more data than 1D barcodes, 2D barcodes, such as QR codes, are distinctive. They are, like the old bull's eye code, subject to blurring on high-speed conveyor belts, and they also need more advanced technology to read accurately.

How Do Barcodes Operate? Black and white bars make up barcodes, which the barcode scanner can read. The white bars are reflected, but the light is absorbed by the black bars. The specific arrangement of white and black bars is recognized by the scanner as data or as Code, which is then converted into your POS.

UPC: The UPC, or Universal Product Code, is the most popular barcode, with the 12-digit Code underneath and black and white bars above it. Why is there a code here? The manufacturer's identification number appears in the UPC's initial six digits. The item number is the next five digits, which you or whoever is in charge of your stock assigns. Each item, regardless of its various variations, such as color and size, should have its distinct number. An error-checking digit appears as the final digit.

SKU: An SKU is a Code given by your specific company, whereas a UPC is a universal code.

UPC-A: The most widely used barcode on products and goods is Universal Product Code (UPC)-A, in the USA.

EAN-13: The POS systems at supermarkets mostly use EAN-13 barcodes. There are 13 digits in all, including a country code, producer name, item number, and check digit.

Code 39: Code 39 is a numeric-length barcode with 43 permitted characters, including capital letters, the numbers 0–9, and a few special characters.

ITF: This code format is used as an identifier for products that possess a Global Trade Item Number (GTIN).

Why are barcodes used?

With the barcodes in inventory management, it is easy for warehouse staff to track items and their expiration dates with the serial and batch numbers.

Asset monitoring with the help of barcodes tracks the movement of portable products used by the staff in an organization.

Barcodes can be used in document identification invoices to store item, order, and customer-related information.

Logistics companies use barcodes for package information to get all of a package's information by just scanning it.

  1. Fast way to enter and find product information.
  2. Automating data entry with barcodes.
  3. Detailed stock counts without wasting time to identify each item
  4. Support all browser useability
  5. Improve customer service by decreasing customers' waiting times.

How To Generate Barcodes?

Barcodes are generated by using the software. The quantity, color, and type of data (as well as the format of the barcode) are determined by the stores, who also select the barcode type. The software performs an automatic machine-readable barcode creation process. With the help of software, a scanner, and a label maker, you can make custom barcodes on your computer that allow you to choose your symbology and product numbers. The advantages of going the custom route include affordability and increased product numbering flexibility. The division of the numbers into subcategories, such as product types and other classifiers, can be creatively done.

Why Should You Use A Barcode?

Shorter Checkout Times: Efficiency is one of the key advantages of barcode usage. By simply scanning the barcode, you can speed up the process tenfold instead of looking up the items in your POS register, choosing their variations, and manually adding them to the cart. If you have several items in your sale, this is especially helpful.

Higher Accuracy: When compared to manual entry, scanning products have a much lower risk of human error. With barcode products, there is much less chance that a customer will inadvertently choose the incorrect item, destroying their inventory and overcharging them.

Learning Is Simpler: Learning to scan barcodes is much simpler than learning how to use the entire POS system. It shouldn't be difficult to learn to use your POS if it has an easy-to-use interface like Oliver. If you have a barcode scanner, however, you can quickly put new employees in charge of the front desk.

More Effective Inventory Control: It is much simpler to keep track of your items and count inventory when all of your items have numerical identification and are quickly scannable with their barcodes.

Frequently Asked Questions (FAQ)


What is a barcode generator?


How many types of barcodes?


What are 1D and 2D barcodes?

There are two main types of barcodes: (1D) 1-dimensional and (2D) 2-dimensional.

A series of lines called a 1D barcode is used to record text data such as product type, size, and color. The top part of universal product codes (UPCs), that are used on product packaging and used to identify goods through the U.S. Postal Service, as well as the ISBN numbers on the back of books, contain them.

In addition to text, 2D barcodes may also include other data like the price, quantity, or even a picture. Because of this, cellphones and other image scanners can read them, but linear barcode scanners cannot. However, on the basis of the application, there are more than a dozen different barcode variations.


Can we use barcodes in stock management?


Can I create my own barcodes?


Why is a barcode different from a SKU?


Which barcode is best for use?


How do I create a free barcode?


Is this barcode generator accessible internationally?


Is this tool available offline?