Your labelviewer install
Two products for ZPL labels
Turn ZPL into pixel-exact label images, and let your users design label templates inside your own software. Everything runs on this server, on your network.
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Viewer
ZPL → PNG
See exactly what the printer will print: the label as an image, one printer dot per pixel.
How: POST ZPL to this server and get a PNG back, or put <zpl-viewer> in your page.
Editor
Design label templates
Your users design templates in <zpl-editor> inside your app; your backend fills them with data and prints.
How: load() a template from your database, store it in saveHandler, print with POST /v1/merge.