Introducing Our 100% Client-Side ZPL Viewer

If you've ever worked with barcode printers, specifically Zebra printers, you've likely encountered ZPL (Zebra Programming Language). It's a powerful but notoriously difficult-to-read page description language used to design shipping labels, product barcodes, and receipts.

For years, the standard way to test ZPL code without wasting a roll of expensive physical labels has been to use online viewers like Labelary. While these services are incredible, they come with a massive caveat: you have to send your raw ZPL code to their servers.

If you are generating shipping labels containing real customer addresses, PII (Personally Identifiable Information), or proprietary barcodes, uploading that data to a third-party server is a severe privacy and security risk.

A Better Way: 100% Local Rendering

We've built the ZPL Viewer & Renderer to solve this exact problem. Leveraging the power of WebAssembly, we've brought a full ZPL rendering engine directly into your browser.

When you paste your ZPL code into our editor, it is parsed, executed, and rendered into a high-quality PNG image using entirely local computational resources. Your data never leaves your device.

Features Built for Developers

• Live Preview & Rotation: See your label update instantly as you type, and rotate the viewport to inspect it from any angle.
• Syntax Highlighting: We've built a custom Prism.js grammar to highlight ZPL commands (like ^XA and ^FO) so you can easily read your code.
• Local File Support: Load .zpl or .txt files directly from your machine into the editor, and download your changes without saving them to a server.
• Multi-Label PDF Export: Does your code contain multiple labels? You can download them as a stack of PNG/JPEGs, or export them into a single, perfectly sized multi-page PDF document!
• Adjustable Settings: Test your label against different print densities (from 152dpi up to 600dpi) and configure custom label dimensions.

Stop wasting labels and stop uploading customer data to random servers. Try our ZPL Viewer today!

Try the ZPL Viewer