Revision 1.3, November 12, 2020

"QZ Tray" is open source software authored by QZ Industries, LLC and published under the LGPL 2.1 license.

Source Code License

  • The exact license text of "QZ Tray" and its components is available here: LICENSE.txt

API License

Premium Support

  • "QZ Tray" binaries provided by ship with a code restriction that encourages a premium support purchase. This premium license (in the form of an electronic certificate) is available for purchase at

Terms Of Use

"Company Branded + Premium Support" is a special rebranding service offered by QZ Industries, LLC released under a special Terms Of Use.


"QZ Tray" is supported through two options:

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