Provide check digit algorithms and calculators written in Go

A portable QR and Barcode generation / manipulation library written in C.

PyUPC-EAN is a barcode library/module for Python.

Barcode Function Library Add-In for Excel

Angular Directive to Render Interleaved 2 of 5 Barcode

barcodes

A command line interface for rxing

The Enhanced QR Code & Barcode Generator, developed in Python using Tkinter, allows users to create various barcodes and QR codes with extensive customization. It supports formats like QR Code, EAN13, Code128, and DataMatrix, offering real-time preview and saving options.

Barcode Function Library for Google Sheets

barcode.php - Generate barcodes from a single PHP file. MIT license.

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Web Taekwon-Do ITF Strančice

Let's break apart ITF.

All the information you need about taekwondo here!

a KdB (https://kdb.tsukuba.ac.jp) crawler for KdB2 project

overview of essential hardware concepts, including internal components like the motherboard, processor, memory, and expansion slots. It covers key topics such as CPU sockets, RAM types, BIOS functionality, and form factors, offering foundational knowledge for the CompTIA ITF+ certification exam.

Provides trivial support for working with Interleaved 2 of 5 (aka itf/i25) codes, i. e. calculating and validating check digits.

This repo contains R code to grab ITF data from NOAA CPC ftp server : https://ftp.cpc.ncep.noaa.gov/fews/itf/

Dynamsoft Barcode Reader samples for MAUI edition

Node.js Typescript server that retrieves and stores junior tennis data in a SQL database through a combination of REST requests and screen scraping.