Double-click the downloaded setup file. If Windows SmartScreen or macOS Gatekeeper flags it due to the age of the certificate, you may need to manually grant permission to proceed.
Beyond printers, it can talk to USB and Serial attached devices like scales or barcode scanners. Cross-Platform Support: Works on Windows, macOS, and Linux. Step-by-Step Installation Guide
Download the installer matching your operating system ( .exe for Windows, .pkg for macOS). 2. Verify File Integrity
This article is for informational purposes. Always refer to the official QZ Tray documentation for the most up-to-date guidance. Version 1.9.8 may contain unfixed security vulnerabilities; use it only in controlled environments.
Many custom-built ERPs, warehouse management systems (WMS), and older e-commerce plugins were developed and coded specifically around the QZ Tray 1.9.x API architecture. Upgrading to a newer major version (like 2.x or higher) sometimes introduces breaking syntax changes. Companies stick to version 1.9.8 to avoid rewriting thousands of lines of code. 2. Lightweight Resource Footprint qz tray 19 8 top download
The developers maintain a legacy download section on their primary website. This archive serves users who require older iterations for system continuity. You can cross-reference the digital signatures of these files against the GitHub source to ensure they have not been altered. Step-by-Step Installation Guide
Once you have downloaded the official file, follow these setup steps: 1. Check Prerequisites (Java)
The QZ Tray 19.8 is a high-capacity, top-loading precision balance designed for laboratories, industrial quality control, and educational settings. With a maximum capacity of 19.8 kg and 0.1 g readability, it delivers accurate results for bulk sample weighing, component counting, and checkweighing.
: QZ Tray versions are not always backwards compatible . A very old version (e.g., 1.9) may conflict with a newer version and cause the application to fail to start. It's always best to perform a clean upgrade to the latest stable version. Double-click the downloaded setup file
Originally, the software was called QZ Print and ran as a Java applet utilizing NPAPI/ActiveX LiveConnect calls. When Google Chrome dropped NPAPI support in 2015 and Firefox followed in 2017, the desktop wrapper "QZ Tray" was created to maintain compatibility.
The first time your e-commerce site or shipping software attempts to print via QZ Tray, a pop-up warning will ask for permission.
// 4. Wire the button document.getElementById('printBtn').addEventListener('click', () => qz.print(config, receipt) .then(() => console.log('Print succeeded')) .catch(err => console.error('Print error:', err)); ); </script> </body> </html>
QZ Tray uses a local loopback secure connection ( localhost ). Cross-Platform Support: Works on Windows, macOS, and Linux
The most trusted source for QZ Tray 19.8 is the official QZ Tray GitHub repository. Navigate to github.com/qzind/tray/releases . Look for the tag v19.8 . You will find assets for different operating systems:
In v19.8, cash drawers are controlled via printer port sharing. Go to Printers > [Your Printer] > Cash Drawer . Test the "Open Cash Drawer" button. If it works, ensure your web code targets the correct printer alias.
This script will handle all the steps for you, ensuring the software is properly placed and configured.
certutil -hashfile QZ-Tray-1.9.8-win64.exe SHA256
The safest place to grab this specific legacy build is the official repository managed by the creators. You can download the code-signed installers from the QZ Print GitHub Releases Archive . : qz-tray-1.9.8.exe macOS File : qz-tray-1.9.8.pkg Linux File : qz-tray-1.9.8.run 2. Official Website