This tool lets you print barcodes on sticker sheets with a regular printer.
Usage: Buy sticker sheets (example). Configure the settings based on your sticker sheet and printer. Use the printing function of your browser. In the printing dialog (or in the browser setting), make sure to remove any headers or footers and to match the margins in your settings. Check the preview and adjust the settings if necessary. Different browsers handle printing differently, I found that Google Chrome works best.
If you have any feedback, do not hesitate to contact me.