# 1. Download
wget https://qz.io/download/qz-tray-19.8.0-linux-amd64.deb
# 2. Verify checksum
sha256sum qz-tray-19.8.0-linux-amd64.deb # compare to website hash
# 3. Install
sudo dpkg -i qz-tray-19.8.0-linux-amd64.deb
# 4. Enable & start service
sudo systemctl enable qztray.service
sudo systemctl start qztray.service
The installer automatically creates a systemd unit (qztray.service) and adds a CA certificate to /usr/local/share/ca-certificates/qztray.crt. Run sudo update-ca-certificates if you see TLS errors.
For those new to the platform, QZ Tray is a cross-browser, cross-platform utility that allows web applications to communicate directly with local hardware. From raw printing to serial communication and file management, it bridges the gap between the web and the desktop.
Version 19.8 (released July 2025) is the most recent stable build at the time of writing. It brings a handful of high‑impact improvements that make it the “top download” for anyone looking to modernise a web‑based POS system.
| Feature | What Changed | Benefit |
|---------|--------------|---------|
| Node 20 & Chromium 119 compatibility | Updated native bindings to support the latest Node LTS and Chrome/Edge/WebView2 releases. | No more “WebSocket not supported” errors on up‑to‑date browsers. |
| Signed certificates by default | The installer now generates a self‑signed certificate and automatically adds it to the OS trust store (Windows Store, macOS Keychain, Linux NSS). | Eliminates the manual “untrusted connection” warnings that plagued earlier versions. |
| Improved USB‑HID handling | Refactored USB driver layer; added support for HID‑POS devices (e.g., magnetic stripe readers). | Seamless integration with new hardware without custom drivers. |
| Reduced memory footprint | Core runtime shrunk from ~12 MB to ~7 MB on idle. | Faster start‑up on low‑powered devices (Raspberry Pi, embedded Windows). |
| Enhanced logging & diagnostics | New “Diagnostics Dashboard” (accessible via http://localhost:8150/diagnostics). | One‑click access to system logs, printer status, and JavaScript error traces. |
| Built‑in auto‑updater | Optional background updater that checks the official feed once per day. | Keeps installations current without manual re‑download. |
| License‑compliant packaging | All third‑party binaries now ship with proper OSS notices. | Easier compliance for enterprise deployments. |
If you are building a new solution—or still running an older 17.x or 18.x build—upgrading to 19.8 is strongly recommended.
Performing a qz tray 19 8 top download correctly is straightforward if you follow official channels. To recap:
By using the official source, you avoid malware, ensure full functionality, and gain peace of mind. If you are not tied to version 1.9.8 for specific hardware reasons, always consider testing the latest stable release first.
Final Checkpoint: Before you finalize your download, ensure you have Java installed (version 8 or 11), know your printer’s connection type (USB, Ethernet, Serial), and have tested the installation with a simple “Hello World” print job from the QZ Tray web interface. qz tray 19 8 top download
Now you are ready to safely download and deploy QZ Tray 1.9.8.
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.
The QZ Tray version 1.9.8 (released in April 2017) can be downloaded from the official GitHub qzind/qz-print releases page.
However, for most modern web applications (like Amazon Seller Central or 3PL Warehouse Manager), it is recommended to use the latest stable version (e.g., 2.2.6 as of April 2026) to ensure compatibility with recent browser security updates. Official Download Links Latest Version: Download QZ Tray Legacy Version (1.9.8): GitHub Release 1.9.8 Key Installation Steps
Check Java: QZ Tray requires Java to run. Version 2.1 and newer specifically require Java 8 or higher.
Run Installer: Download the appropriate file for your OS (.exe for Windows, .pkg for macOS) and follow the default prompts.
Launch: Once installed, the application will run in your system tray (near the clock). The installer automatically creates a systemd unit (
Browser Setup: If using Firefox, you may need to add a security exception for https://localhost:8181 to allow the web browser to communicate with the tray application.
If you are looking for "Cake Tray #19," this refers to a physical product rather than software: Cake Tray #19 White (Pack of 500) Go to product viewer dialog for this item. : Available from retailers like Packware. Large White Cake Tray #19 (Pack of 200) Go to product viewer dialog for this item. : Available from Summitpackaging. Download QZ Tray
QZ Tray 1.9.8 is a critical legacy version of the QZ Tray print server, a cross-platform utility that acts as a secure bridge between web applications and local hardware like printers, scales, and serial devices. What is QZ Tray?
Modern web browsers block direct access to local devices for security. QZ Tray solves this by running a background tray application that opens a WebSocket connection (typically on ports 8181 or 8182) to your browser. This allows web-based platforms—like Amazon Buy Shipping, Shopify, or custom ERPs—to send instant, "silent" print commands to thermal label printers (Zebra, Dymo, Epson) without a manual print dialog. Key Features of the 1.9 Branch
While the current stable versions are in the 2.2+ range, the 1.9 branch was a foundational release that introduced several core capabilities: Download QZ Tray
Unlocking Web Printing: A Guide to QZ Tray 1.9 & 2.x Printing labels, barcodes, or receipts directly from a browser used to be a technical headache.
has become the go-to solution for developers and business owners needing seamless browser-to-hardware communication. Whether you are looking for the classic stable performance of QZ Tray 1.9 or the advanced features of the latest releases, this guide covers everything you need to know. What is QZ Tray? Performing a qz tray 19 8 top download
QZ Tray is a cross-platform, cross-browser plugin that acts as a bridge between your web application and your local printer. It eliminates the need for manual "Print" dialogs, allowing for silent, automated printing directly from JavaScript. Key Capabilities: Raw Printing:
Send raw commands (ZPL, EPL, ESC/POS) for lightning-fast thermal printing. Pixel Printing: High-quality printing for PDFs, HTML, and images. Device Communication:
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
Setting up QZ Tray is a two-part process that requires a Java environment to be present on your system first. 1. Install Java (Prerequisite)
QZ Tray requires the Java Development Kit (JDK) or Runtime Environment (JRE) to function.
Below is a minimal, production‑ready snippet that works on all platforms with QZ Tray 19.8.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>QZ Tray 19.8 Demo</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/qz-tray/2.2.0/qz-tray.js"></script>
</head>
<body>
<button id="printBtn">Print Receipt</button>
<script>
// 1. Connect to the tray
qz.websocket.connect().then(() => console.log('QZ Tray connected'))
.catch(err => console.error('Connect error:', err));
// 2. Define a simple ESC/POS receipt (raw bytes)
const receipt = [
'\x1b\x40', // Initialize printer
'My Store\n',
'-----------------------\n',
'Item A $9.99\n',
'Item B $5.00\n',
'-----------------------\n',
'TOTAL $14.99\n',
'\x1d\x56\x41' // Cut paper
];
// 3. Set up the print config
const config = qz.configs.create('POS-Printer',
raw: true, // send raw bytes
encoding: 'UTF-8',
// optional: set DPI, margins, etc.
);
// 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>
Key points for 19.8:
Once installed, you need to pair the software with your hardware. Here is the workflow: