Barcode generator for website

I would like two pages to be created for my website. First page will allow a user to create a simple barcode on the screen. For an example, see these next two links: 1. [login to view URL] 2. [login to view URL] Second page will allow a user to create a 2d barcode on the screen. See link for example. [login to view URL] this company, among many others, lets you create 2d barcodes for free. The site is done in Joomla, but the pages I need do not have to be. I looked around at the Joomla extensions and I see that there are a few for creating barcodes. There is plenty of shareware out there too. A good search term is “free barcode generator” Joomla code or not, the page should be simple and easy. The user may want to print the barcode or cut and paste it.