ZPLToolkit

View, Edit, and Convert ZPL Labels for Thermal Printers

Convert, preview, and export ZPL labels with our free tools fully online - no sign-up. Turn PDFs into ZPL, render ZPL to PDF, or preview the code before printing. All tools run 100% locally for maximum privacy and security.

Free

Our Toolkit

Free, browser-based tools for working with ZPL labels and thermal printers.

PDF to ZPL Converter

Convert any shipping label (PDF, Image) into crisp ZPL code. Crop, resize, and optimize for 203, 300, or 600 DPI printers.

Open Converter →

ZPL to PDF Converter

Turn ZPL commands into print-ready PDFs. Preview layout, adjust size and DPI, then export a crisp PDF.

Open Converter →

ZPL Viewer

Visualize ZPL code instantly. Verify layout, barcode quality, and print density without wasting paper.

Open Viewer →

Quick Start

Use the quick starts below to open each tool with your file or code already loaded.

PDF to ZPL

Convert PDF shipping labels to printer-ready ZPL

Upload a shipping label PDF and open the converter ready to crop, resize, and export ZPL for thermal printers (203, 300, 600 DPI).

1Output Configuration

Print DPI

2Upload PDF

Drag and drop a PDF label or click to open the converter with your file ready to crop.

Supports single page or multi-page PDFs. <br/> Max file size 10MB.

ZPL to PDF

Export ZPL into print-ready PDFs

Paste ZPL code and open the converter to preview, adjust size and DPI, then download a PDF.

Paste your ZPL code

We will open the converter with your ZPL ready to render into PDF.

ZPL Viewer

Preview and validate ZPL code before printing

Paste your ZPL code to open the viewer and check layout, barcodes, and density before printing.

Paste your ZPL code

We will open the viewer with your ZPL already loaded and ready to render.

Frequently Asked Questions

Common questions about ZPL Toolkit and thermal printing

What is ZPL Toolkit?

ZPL Toolkit is a browser-based set of tools for working with ZPL labels: convert PDF labels to ZPL, render ZPL into image/PDF, and preview results before printing. No install and no account required.

Is it really free? Are there any limits?

Yes. You can use the tools for free. To keep things fast and safe, some local limits apply (for example, up to 10MB per PDF and up to 50 pages in the PDF converter).

Are my files (PDF/ZPL) uploaded to a server?

No. Conversion and rendering run locally in your browser (including Web Workers for performance). Your label content is not uploaded or stored. The site may use cookies and usage metrics without accessing your files — see the Privacy Policy.

Which printers are compatible with the generated ZPL?

Output is intended for printers that support ZPL/ZPL II. If your device uses a different language (such as EPL, CPCL, or TSPL), it may not print correctly.

What does DPI mean, and which one should I pick?

DPI is print resolution. 203 DPI is the common default; 300 DPI helps with small text and denser barcodes; 600 DPI is best when you need maximum sharpness. For accurate sizing, match the DPI configured on your printer.

Can I export the label as an image or PDF?

Yes. Depending on the tool, you can export the preview as PNG/JPG/PDF and also copy or download the ZPL. This is helpful for sharing, archiving, and validating layout before printing.

How do I convert a PDF label to ZPL?

Open the converter, upload the PDF, switch pages if needed, crop the label area, choose label size and DPI, then generate ZPL. After that, copy or download the code and send it to your printer.
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