Qt 5.13 | Qt WebEngine | Qt WebEngine Licensing

Qt 5.13.2 Reference Documentation

# Qt WebEngine Licensing

The Qt specific parts of the Qt WebEngine module are dual-licensed under Commercial and GNU Lesser General Public License (LGPLv3). In addition, the module contains code licensed under LGPLv2.

The module includes a snapshot of Chromium. As such, users need to respect the licenses of Chromium, and third-party code included in Chromium. The arguably most restrictive license to be respected by all users is LGPLv2.1.

Third party licenses included in the sources are:

ARCore SDK | Apache 2.0
AXE-CORE Accessibility Audit | MPL 2.0
Abseil | Apache 2.0
Alliance for Open Media Video Codec | BSD
Almost Native Graphics Layer Engine | BSD
Android Explicit Synchronization | Apache 2.0
Blackmagic DeckLink SDK - Mac | BSL (v 1.0)
BoringSSL | BSDish
Breakpad, An open-source multi-platform crash reporting system | New BSD, Apple PSL 2.0 and Apache 2.0
Brotli | MIT
CRC32C | New BSD
Chrome Custom Tabs - Example and Usage | Apache 2.0
Chromium License | BSD
Chromium OS system API | BSD
Cocoa extension code from Camino | MPL 1.1/GPL 2.0/LGPL 2.1
Compact Encoding Detection | Apache 2.0
Crashpad | Apache 2.0
Darwin | Apple Public Source License 2.0
David M. Gay's floating point routines | MIT-like
Dawn | Apache 2.0
Expat XML Parser | MIT
Feed | Apache 2.0
Fiat-Crypto: Synthesizing Correct-by-Construction Code for Cryptographic Primitives | MIT
FlatBuffers | Apache 2.0
Flot Javascript/JQuery library for creating graphs | MIT
FreeType | Custom license "inspired by the BSD, Artistic, and IJG (Independent
GVR Android SDK | Apache 2.0
GVR Keyboard | Apache 2.0
GifPlayer Animated GIF Library | Apache License 2.0
Google Ink | Apache 2.0
Google fork of Khronos reference front-end for GLSL and ESSL | MIT
Headers for the Windows 10 WebAuthn API (webauthn.dll) | MIT
IAccessible2 COM interfaces for accessibility | BSD
ISimpleDOM COM interfaces for accessibility | MPL 1.1/GPL 2.0/LGPL 2.1
Jinja2 Python Template Engine | BSD 3-Clause
Khronos header files | MIT/X11, SGI Free Software License B
LZMA SDK | Public Domain
LevelDB: A Fast Persistent Key-Value Store | New BSD
Material Design Icons | Apache 2.0
Metrics Protos | BSD
NVIDIA Management Library | NVML license
NVidia Control X Extension Library | MIT
Netscape Portable Runtime (NSPR) | MPL 1.1/GPL 2.0/LGPL 2.1
Network Security Services (NSS) | MPL 2
OTS (OpenType Sanitizer) | BSD
Oculus SDK for Windows | By exception only
OpenH264 | 2-Clause BSD
OpenMAX DL | BSD
OpenVR SDK | BSD 3-Clause
PDFium | BSD
PLY (Python Lex-Yacc) | BSD
Paul Hsieh's SuperFastHash | BSD
Perfetto | Apache2
Protocol Buffers | BSD
Quick Color Management System | MIT
Recurrent neural network for audio noise reduction | BSD 3-Clause
SMHasher | MIT, Public Domain
SPIR-V Headers | MIT
SPIR-V Tools | Apache 2.0
Shaderc | Apache 2.0
Skia | BSD
Snappy: A fast compressor/decompressor | New BSD
Strongtalk | BSD
Sudden Motion Sensor library | University of Illinois/NCSA Open Source License
SwiftShader | Apache 2.0 and compatible licenses
The Chromium Project | BSD 3-clause "New" or "Revised" License
The USB ID Repository | BSD
URI Template Parser | Apache 2.0
UnRAR source for decompressing .RAR and other files. | Non-standard
V8 JavaScript Engine | BSD
WDS | LGPL 2.1
Web Animations JS | Apache 2.0
WebKit | BSD and LGPL v2 and LGPL v2.1
WebM container parser and writer. | BSD
WebP image encoder/decoder | BSD
WebRTC | BSD
Windows Template Library (WTL) | Microsoft Permissive License
Yara | BSD 3-Clause
bspatch | BSD 2-Clause License
d3 | BSD 3-Clause
dom-distiller-js | BSD
dynamic annotations | BSD
enum34 | BSD
fdlibm | Freely Distributable
ffmpeg | LGPL 2.1
fips181 | BSD 3-Clause
flac | BSD
fontconfig | MIT
gestures | MIT
google-glog's symbolization library | BSD
google-jstemplate | Apache 2.0
harfbuzz-ng | MIT
hunspell | MPL 1.1/GPL 2.0/LGPL 2.1
iccjpeg | Custom license
icu | MIT
inspector protocol | BSD
jsoncpp | MIT
libaddressinput | Apache 2.0
libcxx-pretty-printers | GPL v3
libevdev | MIT
libevent | BSD
libjingle XMPP and xmllite libraries | BSD
libjpeg | Custom license
libjpeg-turbo | Custom license
libpng | libpng license
libprotobuf-mutator | Apache 2.0
libsecret | LGPL 2.1
libsrtp | 3-clause BSD
libudev | LGPL 2.1
libusbx | LGPL 2.1
libvpx | BSD
libxml | MIT
libxslt | MIT
libyuv | BSD
linux-syscall-support | BSD
mach_override | MIT and 2-clause BSD
mesa_headers | MIT and LGPL v2
minigbm | BSD
modp base64 decoder | BSD
nmoinvaz/minizip | Custom license
opus | BSD
pyjson5 | Apache 2.0
re2 - an efficient, principled regular expression library | BSD 3-Clause
sfntly | Apache 2.0
simplejson | MIT
sqlite | Public domain
tcmalloc | BSD
test_fonts | SIL OPEN FONT LICENSE, GPL v2, Bitstream Vera Fonts Copyright
tlslite | Public domain and BSD
url_parse | BSD and MPL 1.1/GPL 2.0/LGPL 2.1
usrsctp | New BSD
v4l-utils | LGPL 2.1
valgrind | BSD
woff2 | Apache 2.0
xdg-mime | Academic Free License version 2.0 or LGPL v2
xdg-user-dirs | MIT
xdg-utils | MIT
yasm | 2-clause or 3-clause BSD licensed, with the exception of bitvect, which is triple-licensed under the Artistic license, GPL, and LGPL
zlib | Custom license