Convert ZPL to PNG
Paste your ZPL below and download the label as a PNG image at 152, 203, 300 or 600 dpi. It runs on the OpenZPL engine, free and without an account.
How to convert ZPL to PNG
- Paste your ZPL in the editor, or open a .zpl file.
- Pick the label size and the print density of your printer (203 dpi is the most common).
- Check the preview, then download the PNG.
Convert from your code
curl https://api.openzpl.com/v1/printers/8dpmm/labels/4x6/0/ \ --data-binary @label.zpl > label.png
Questions
Yes. The viewer and the API's free plan need no account: 3 requests per second and 5,000 labels a day.
No. The label is rendered and returned; the API doesn't keep the ZPL. The editor only remembers your last label in this browser.
Grayscale has smooth edges for screens. Bitonal (1-bit) matches what a thermal printer prints and gives smaller files; pick it in the full editor.