Licenses Used in Qt | Qt 5.13

Qt 5.13 | Licenses Used in Qt

Qt 5.13.2 Reference Documentation

# Licenses Used in Qt

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 that incorporate code licensed under third-party open-source licenses:

## Additional Information

The following table lists related documents, such as information about Trademarks and other licenses used in parts of Qt.

Android GNU C++ Run-time Licensing | Provides additional information about the licensing of run-time dependencies of Qt for Android
LLVM Attribution | University of Illinois/NCSA Open Source License, BSD licenses
License Changes | Information about changes of licenses in Qt and Third Party Modules
Macros for Building with CMake | BSD 3-clause "New" or "Revised" License
Mesa llvmpipe | MIT License
Open Source Licensing of Qt | Information about open source licensing of Qt.
The Active Qt framework | Commercial and BSD 3-clause "New" or "Revised" License.
The QtOpenGLExtensions Library | Commercial and BSD 3-clause "New" or "Revised" License.
The qtmain Library | Commercial and BSD 3-clause "New" or "Revised" License.
Trademarks | Information about trademarks owned by The Qt Company and other organizations.