Short description of Label Flow - Barcode Labeling Software 3.4: Whether you need to print fixed barcodes or automate barcode printing by fetching data from a database, Label Flow barcode labeling software has it all. Label Flow barcode labeling software also includes an integrated database editor and advanced data filtering tools. Label Flow barcode labeling software easily interfaces with nearly all thermal and barcode label printers so you don't need to worry about device compatibility.