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  1. Barcode - Wikipedia

    A barcode or bar code is a method of representing data in a visual, machine-readable symbolic form. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel …

  2. What Is a Barcode? - GS1 US

    Understand what a barcode is and how GS1 standards enable accurate product identification and efficient supply chain operations worldwide.

  3. Barcode | Definition, Examples, & Facts | Britannica

    Nov 1, 2025 · barcode, a printed series of parallel bars or lines of varying width that is used for entering data into a computer system. The bars are typically black on a white background, and …

  4. GS1 Barcodes - Standards | GS1

    Working with GS1, you can rest assured that your barcodes and unique numbers will be accepted by major retailers and distributors all over the world. Barcodes are symbols that can be …

  5. Free Barcode Generator | Cognex

    Choose the type of code you'd like to make, enter your information, and generate a downloadable barcode and HTML code for free.

  6. What Is a Barcode? How Barcodes Work, Benefits, and Uses

    Sep 9, 2025 · What Is a Barcode? A barcode is a square or rectangle with a combination of vertical black lines of varying thickness and height, white space, and numbers that together …

  7. Free Online Barcode Generator - Barcode-Maker.com

    Free Barcode Generator is an online tool that allows users to easily create various formats of barcodes and QR codes. It supports multiple encoding types and enables users to generate …

  8. The Ultimate Guide to Barcodes - US Barcode Authority GS1 UPC

    Barcodes are essentially data carriers and can be conveyed in numerous forms. This ultimate guide to barcodes shows the common 1D and 2D barcode languages and how they are applied.

  9. Barcode 101: Beginner-Friendly Guide - sunavin.com

    1 day ago · A barcode is a machine-readable representation of data, typically in the form of parallel lines (for 1D barcodes) or squares and dots (for 2D barcodes). They allow for quick …

  10. Free Online Barcode Generator: Create Barcodes for Free!

    You may use this barcode generator as part of your non-commercial web-application or web-site to create barcodes, QR codes and other 2D codes with your own data.