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 5.15.11 that incorporate code licensed under third-party open-source licenses:
Qt Bluetooth
GNU General Public License v2.0 only (This does not force user code to be GPL'ed. For more info see details.) |
Qt Image Formats
Libtiff License | |
BSD 3-clause "New" or "Revised" License |
Qt Location
Boost Software License 1.0 | |
MIT License | |
MIT License | |
Boost Software License 1.0 | |
ISC License | |
ISC License | |
BSD 2-clause "Simplified" License and zlib License | |
Boost Software License 1.0 | |
BSD 3-clause "New" or "Revised" License | |
MIT License | |
ISC License | |
MIT License | |
MIT License | |
ISC License | |
ISC License | |
ISC License | |
Geosimplify-js License | |
ISC License | |
MIT License | |
ISC License | |
BSD 2-clause "Simplified" License | |
ISC License | |
ISC License | |
MIT License | |
Boost Software License 1.0 | |
BSD 3-clause "New" or "Revised" License |
Qt Quick Controls
MIT License |
Qt SVG
Historical Permission Notice and Disclaimer - sell variant |
Qt Script
GNU Library General Public License v2 or later |
Qt XML Patterns
W3C Software Notice and Document License (2015-05-13) |
Additional Information
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 | |
Commercial and BSD 3-clause "New" or "Revised" License. | |
Commercial and BSD 3-clause "New" or "Revised" License. | |
Commercial and BSD 3-clause "New" or "Revised" License. | |
Information about trademarks owned by The Qt Company. |