ZPLDesigner
A Zebra Programming Language (ZPL) IDE with embedded viewer
...You will be able to zoom/unzoom, rotate or save the generated label as an image.
You can choose how to render your ZPL code: a local Zebra printer or by using the labelary.com webservice.
An industrial ZPL printer with embedded website and network is required when you choose to use "Local Zebra Printer" as renderer.