There are 2 repositories under labelary topic.
BinaryKits.Zpl a set of .net libraries. The project supports you in the simple creation of zebra labels. It generates the ZPL data, it is a printer description language from Zebra Technologies. ZPL II is now emulated by many label printers from different manufacturers. So with this implementation you can create labels for most printers.
An ethernet based virtual Zebra Label Printer that can be used to test applications that produce bar code labels.
A CLI tool & Go package for conversion of ZPL files.
A C# class library for generating ZPL code from C# code. Written to be short and sweet and support labelary's API.
Create PDF's or PNG's from ZPL labels via the Labelary API on the CLI.
Zebra GRF file generator implemented in Java.