Qt contains some code that is not provided under the GNU Lesser General Public License (LGPL) or the Qt Commercial License, but rather under specific licenses from the original authors.
The Qt Company gratefully acknowledges these and other contributions to Qt. We recommend that programs that use Qt also acknowledge these contributions, and quote these license statements in an appendix to the documentation.
Note: You only need to comply with (and acknowledge) the licenses of the third-party components that you are using with your application. Click the name of the component to see the licensing details.
Third-party Licenses
The following table lists parts (modules) of Qt 6.4.1 that incorporate code licensed under third-party open-source licenses:
|
MIT License |
|
|
MIT License or Public Domain |
|
|
MIT License |
|
BSD 2-clause "Simplified" License |
|
|
BSD 2-clause "Simplified" License |
|
|
BSD 2-clause "Simplified" License |
|
|
BSD 2-clause "Simplified" License |
|
|
BSD 2-clause "Simplified" License |
|
|
BSD 2-clause "Simplified" License |
|
|
BSD 2-clause "Simplified" License |
|
GNU General Public License v2.0 only (This does not force user code to be GPL'ed. For more info see details.) |
|
BLAKE2 (reference implementation), version 54f4faa4c16ea34bcd59d16e8da46a64b259fc07 |
Creative Commons Zero v1.0 Universal or Apache License 2.0 |
|
Zlib License |
|
|
BSD 3-clause "New" or "Revised" License |
|
|
BSD 3-clause "New" or "Revised" License |
|
|
BSD-3-Clause |
|
|
Public Domain |
|
|
Public Domain |
|
|
BSD 2-clause "Simplified" License |
|
|
BSD 3-clause "New" or "Revised" License |
|
|
BSD 3-clause "New" or "Revised" License |
|
|
Public Domain |
|
|
Creative Commons Zero v1.0 Universal |
|
|
BSD 2-clause "Simplified" License |
|
|
BSD 3-clause "New" or "Revised" License |
|
|
Creative Commons Zero v1.0 Universal |
|
|
MIT License |
|
|
Unicode License Agreement - Data Files and Software (2016) |
|
|
Unicode License Agreement - Data Files and Software (2016) |
|
|
BSD-3-Clause |
|
|
MIT License |
|
Academic Free License v2.1, or GNU General Public License v2.0 or later |
|
BSD 3-Clause "New" or "Revised" License |
|
|
Freetype Project License or GNU General Public License v2.0 only |
|
|
Bitstream Vera Font License |
|
|
BSD 3-clause "New" or "Revised" License |
|
|
Bitstream Vera Font License |
|
|
MIT License |
|
|
MIT License and MIT Open Group variant |
|
|
Zlib License |
|
|
Freetype Project License or GNU General Public License v2.0 only |
|
|
MIT License |
|
|
BSD 3-clause "New" or "Revised" License |
|
|
Independent JPEG Group License and BSD 3-Clause "New" or "Revised" License and zlib License |
|
|
Libpng License and PNG Reference Library version 2 |
|
|
MIT License |
|
|
Apache License 2.0 |
|
|
MIT License |
|
|
MIT License |
|
|
MIT License |
|
|
BSD 2-clause "Simplified" License and Imlib2 License |
|
|
Apache License 2.0 or MIT License |
|
|
MIT License |
|
|
MIT License |
|
|
LCS-Telegraphics License |
|
|
X11 License and Historical Permission Notice and Disclaimer |
|
|
MIT License |
|
|
International Color Consortium License |
|
Libtiff License |
|
|
BSD 3-clause "New" or "Revised" License |
|
ISC License |
|
|
Geosimplify-js License |
|
The Public Suffix List, version d17a65633b0286833727ef21e897a22564695ef5, fetched on 2022-05-23 |
Mozilla Public License 2.0 |
|
BSD 3-clause "New" or "Revised" License |
|
Mozilla Public License 2.0 and Creative Commons Zero v1.0 Universal and Creative Commons Attribution Non Commercial Share Alike 4.0 International and BSD 3-Clause "New" or "Revised" License and Apache License 2.0 and MIT License |
|
MIT License |
|
|
Boost Software License 1.0 |
|
|
BSD 3-clause "New" or "Revised" License |
|
BSD 2-clause "Simplified" License |
|
Apache License 2.0 |
|
|
BSD 3-clause "New" or "Revised" Licensee |
|
|
MIT License |
|
|
BSD 3-clause "New" or "Revised" License |
|
|
MIT License |
|
BSD 3-Clause "New" or "Revised" License |
|
MIT License |
|
Public Domain |
|
Historical Permission Notice and Disclaimer - sell variant |
|
Mozilla Public License 2.0 and BSD 3-Clause "New" or "Revised" License |
|
|
Resonance Audio, version e225aedb5ec76ca6a0fe7079c0b84dbcbb490553 |
Apache License 2.0 |
|
BSD 3-Clause "New" or "Revised" License |
|
Boost Software License 1.0 |
|
|
MIT License |
|
|
GNU General Public License v2.0 only with Linux Syscall Note |
|
|
BSD 4-clause "Original" or "Old" License |
|
Apache License 2.0 |
|
|
Apache License 2.0 |
|
|
Apache License 2.0 and BSD 3-clause "New" or "Revised" License |
|
BSD |
|
SPIRV-Cross, version d137abeef57b2f3fdbdab0ad5590fe99a44ba546 |
Apache License 2.0 and Khronos License |
|
BSD 3-Clause "New" or "Revised" License, and Khronos License, and Apache License 2.0, and GNU General Public License v3.0 or later with Bison exception 2.2, and NVIDIA 2002 License |
The following table lists related documents, such as information about Trademarks and other licenses used in parts of Qt.
|
Provides additional information about the licensing of run-time dependencies of Qt for Android |
|
|
University of Illinois/NCSA Open Source License, BSD licenses |
|
|
Information about changes of licenses in Qt and Third Party Modules |
|
|
BSD 3-clause "New" or "Revised" License |
|
|
MIT License |
|
|
Details of restrictions on the use of PDF-related trademarks |
|
|
Commercial and BSD 3-clause "New" or "Revised" License. |
|
|
Information about trademarks owned by The Qt Company. |
