Qt 5.7 | Qt WebEngine | Qt WebEngine Licensing

Qt 5.7.1 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:

Almost Native Graphics Layer Engine | BSD
Blackmagic DeckLink SDK - Mac | BSL (v 1.0)
Brotli | Apache 2.0
Chrome Custom Tabs - Example and Usage | Apache 2.0
ChromeVox | Apache 2.0
Chromium OS system API | BSD
Closure compiler | Apache 2.0
Cocoa extension code from Camino | MPL 1.1/GPL 2.0/LGPL 2.1
Compact Language Detection | BSD
Crashpad | Apache 2.0
Darwin | Apple Public Source License 2.0
David M. Gay's floating point routines | MIT-like
Error Prone | Apache 2.0
Expat XML Parser | MIT
Flot Javascript/JQuery library for creating graphs | MIT
GifPlayer Animated GIF Library | Apache License 2.0
Google Cardboard | Apache 2.0
Hardware Composer Plus | Apache 2.0
IAccessible2 COM interfaces for accessibility | BSD
ISimpleDOM COM interfaces for accessibility | MPL 1.1/GPL 2.0/LGPL 2.1
JMake | GPL 2.0
Khronos header files | MIT/X11, SGI Free Software License B
LCOV - the LTP GCOV extension | GPL v2
LZMA SDK | Public domain
LevelDB: A Fast Persistent Key-Value Store | New BSD
Mojo | Chromium
NSBezierPath additions from Sean Patrick O'Brien | BSD
NVidia Control X Extension Library | MIT
Netscape Plugin Application Programming Interface (NPAPI) | MPL 1.1/GPL 2.0/LGPL 2.1
Netscape Portable Runtime (NSPR) | MPL 1.1/GPL 2.0/LGPL 2.1
Network Security Services (NSS) | MPL 1.1/GPL 2.0/LGPL 2.1
OTS (OpenType Sanitizer) | BSD
OpenH264 | 2-Clause BSD
OpenMAX DL | BSD
PLY (Python Lex-Yacc) | BSD
Paul Hsieh's SuperFastHash | BSD
Proguard | GNU General Public License (GPL), version 2
Protocol Buffers | BSD
Quick Color Management System | MIT
SMHasher | MIT, Public Domain
Skia | BSD
Snappy: A fast compressor/decompressor | New BSD
Speech Dispatcher | GPL (v2 or later)
Strongtalk | BSD
Sudden Motion Sensor library | University of Illinois/NCSA Open Source License
SwiftShader software renderer. | Proprietary
The USB ID Repository | BSD
V8 JavaScript Engine | BSD
Web Animations JS | Apache 2.0
WebKit | BSD and GPL v2
WebM container parser and writer. | BSD
WebP image encoder/decoder | BSD
WebRTC | BSD
Windows Template Library (WTL) | Microsoft Permissive License
boringssl | BSDish
bspatch | BSD Protection license
class-dump | GPL
d3 | BSD 3-Clause
dom-distiller-js | BSD
dynamic annotations | BSD
fdlibm | Freely Distributable
ffmpeg | LGPL 2.1
fips181 | BSD 3-Clause
flac | BSD
fontconfig | MIT
google-glog's symbolization library | BSD
google-jstemplate | Apache 2.0
google-safe-browsing | Apache 2.0
harfbuzz-ng | MIT
hunspell | MPL 1.1/GPL 2.0/LGPL 2.1
iccjpeg | Custom license
icu | MIT
ijar | Apache 2.0
jsoncpp | MIT
libevent | BSD
libexif | LGPL 2.1
libjingle | BSD
libjpeg-turbo | Custom license
libjpeg | Custom license
libpng | libpng license
libsecret | LGPL 2.1
libsrtp | 3-clause BSD
libudev | LGPL 2.1
libusbx | LGPL 2.1
libva | MIT
libvpx | BSD
libxml | MIT
libxslt | MIT
libyuv | BSD
linux-syscall-support | BSD
mach_override | MIT and 2-clause BSD
mesa | MIT and LGPL v2
minigbm | BSD
modp base64 decoder | BSD
mt19937ar | BSD
ocmock | BSD with advertising clause
open-vcdiff | Apache 2.0, MIT, GPL v2 and custom licenses
opus | BSD
pyelftools | Public Domain
re2 - an efficient, principled regular expression library | BSD 3-Clause
sfntly | Apache 2.0
simplejson | MIT
sqlite | Public domain
talloc | LGPL v3
tcmalloc | BSD
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
wayland-protocols | MIT
wayland | MIT
woff2 | Apache 2.0
x86inc | ISC from text in file header. Same text is copied to LICENSE file.
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
Chromium License | BSD