To generate a QR code in Java, we need to use a third-party library named ZXing (Zebra Crossing). It is a popular API that allows us to process with QR code. With the help of the library, we can easily generate and read the QR code. Before moving towards the Java program, we need to add the ZXing library to the project. A small project I made allows step-by-step debugging and following the creation of the QRCode and manually changing all the parameters - something no generator on web does. I am in need of generating QR Code in oracle database and print them in PDF document generated through BI Publisher. I have tried many places and found below post which makes use of Zxing Library to A very different and much less cumbersome approach would be to generate the QR code online and download them to be displayed in a (bound) picture control. I wrote an article on displaying online images: Reed-Solomon algorithm for a QR code generator Ask Question Asked 8 years, 9 months ago Modified 8 years, 9 months ago I am writing an application which is going to generate qr codes. Most of the programming logic is implemented. The next step in the process would be to generate the qr code image. The most simpl. I'm looking for a free to use c library/code to create barcodes. Secifically I need to be able to create QR-Code type barcodes. I'm looking for free to use (Open Source or just Free, etc.) not pay. I'm trying to generate QR codes on my website. All they have to do is have a URL in them, which a variable on my site will provide. What would be the easiest way to do this? Is it possible to generate barcode from a string using c ? Is there any builtin classes for generating barcodes in asp.net? Is it possible to detect a barcode printer connected with a system? The company I work for has released an open source (Apache License v2) Delphi QR barcode generator called DelphiZXingQRCode. It's a Delphi port of the QR code functionality from the ZXing barcode image processing library.