Supported Barcode Formats

February 28, 2022

Updated April 24, 2025

Barcodes are widely used across industries for tracking, labeling, and encoding data. With a variety of formats available, from simple one-dimensional linear codes to complex two-dimensional matrix codes. This article presents a comprehensive list of supported barcode formats. Whether you are generating barcodes or decoding them, this information will help you choose the most suitable format for your needs.

QR & 2D Barcode

Two-dimensional (2D) barcodes can encode significantly more data than traditional linear barcodes while using less physical space. They are widely used in industries such as logistics, healthcare, manufacturing, and marketing due to their efficiency and versatility. This section highlights the supported 2D barcode formats, including popular types like QR Code, Data Matrix, and Aztec, as well as specialized formats such as MaxiCode for shipping and Intelligent Mail for postal services. Each format has unique characteristics designed to suit different use cases, ranging from compact labeling to high-speed scanning and error correction.

QR Code

Micro QR Code

Rectangular Micro Code

Aztec

Data Matrix

MaxiCode

Intelligent Mail Barcode

The Intelligent Mail Barcode (IMB), also known as IM Barcode, USPS OneCode Barcode, or IMB, is a one-dimensional barcode used by the United States Postal Service (USPS) for sorting and tracking mail. It combines routing and tracking information into a single code, enabling more efficient mail handling. IMB encodes up to 31 digits of numeric data, including fields such as the mailer ID, service type, and serial number. It is primarily used in bulk and automated mail systems rather than for general-purpose data encoding.

Intelligent Mail

Modern Linear Barcodes

Code 39

Code 128

GS1-128

The GS1-128 is a variant of Code 128, which can encode all ASCII alphanumeric characters in a barcode format. GS1-128 defines both data types and formats that are used for exchange and logistics between entities. Food companies use this barcoding format to share company, product, and shipping information.