Industry printing

and more from your web browser.

Download now

Watch how

Print to popular hardware

Using PCL, ESC/POS, EPL, ZPL, FGL and more.

Bi-directional serial, HID and USB communication

Communicate directly with connected devices, such as scales, industrial automation systems and more.

Simple API, easy coding

Download and edit sample.html to get started.

Free Version

Community supported only, untrusted.

Premium Version

Commercially supported, trusted dialog.

Cost FREE $499 USD
(annual renewal at reduced rate)
Support Community Help - Direct Email Response
- Basic Product Integration
- Remote Troubleshooting
- Message Signing
- Critical Bug Fixes
- Raw Language Consulting
- New Hardware Consulting
Updates Manual Immediate Email Notification
Certificate None (Will display warnings) Trusted (1 - 5 years)
Licence LGPL Premium Supported
(Source remains LGPL)


Buy Now

Live Demo


“QZ Tray is a perfect! Handsfree label-print for all outgoing orders. pakaneo loves QZ Tray.”

Ansgar Sohn, Co-Founder pakaneo GmbH

“qz-tray is amazing [... and] a life-saver for my startup company! Our warehouse will use it to print FedEx labels to a thermal printer.”

Kim McGee, Owner

“The QZ is absolutely amazing and it's easy to set-up because the wiki is full of information we needed. You can save a lot of your time and nerves. I recommend to all!”

Adam Svitavanc, CEO Queens Store

“QZ Tray is a brilliant [...] labels and documentation direct from our website dramatically decreased the time we take processing each order.”

Gareth Dart, Herring Shoes

“I LOVE QZ! and your support is top-notch.”

Bill Matlock, BillBuilt Web Systems

“The process was so smooth! The guide on the wiki was fantastic and all the info I needed was easy to find. Great product, great support!”

Robert Mosolgo,

“Great software that has brought our door ticket solution to life. A special mention goes out to the highly effective support team.”

Clement Jobeili,

“Wonderful application, awesome support for premium users. Assistance was beyond expectation.”

Jan Dayanan,

“The money spent on your software is worth every cent, including the great support.”

Dr. Markus Löschnigg DBA, Loeschnigg Consulting

Thermal Printing

  • Print barcodes, receipts and more from the web
  • Works with Zebra, Epson, Citizen, Star, Boca, Dymo and more
  • Supports all popular connection types: COM, Parallel, Serial, USB, IP (and more)
  • Compatible with Windows, Mac OS X, Linux clients
  • Tested with Firefox, Chrome, Safari, Internet Explorer, Microsoft Edge, Opera

Quick Setup

  • Seamlessly sends commands in EPL, ZPL, FGL, ESC/POS, EPCL, CPCL (and many more)
  • Open source, free community support
  • Commercial supported versions available
  • AJAX ready by using JavaScript to control print jobs
  • Supports direct JPG, PDF, PNG, HTML printing


  • Source code is open source; LGPL
  • Depends on open source projects jetty, jSSC, PDFBOX, jQuery, WebSockets
  • Popular with hobbyists and professionals
  • Tested and deployed in POS and Shipping industries around the world
  • All versions can be used in commercial software.
  • Successfully implemented with PHP, Java, JSP, Node.js, C#, VB.NET, Tomcat, WebLogic©, ColdFusion©, Erlang, R, Classic ASP, Ruby, Perl, Python, Go and several others
  • Widely used. Over 200,000 downloads