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:

AXE-CORE Accessibility Audit

MPL 2.0

Almost Native Graphics Layer Engine

BSD

Android Explicit Synchronization

Apache 2.0

Blackmagic DeckLink SDK - Mac

BSL (v 1.0)

Brotli

MIT

Chrome Custom Tabs - Example and Usage

Apache 2.0

ChromeVox

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

Compact Language Detector v3

Apache 2.0

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

FlatBuffers

Apache 2.0

Flot Javascript/JQuery library for creating graphs

MIT

FreeType

Custom license "inspired by the BSD, Artistic, and IJG (Independent

GifPlayer Animated GIF Library

Apache License 2.0

Google VR SDK

Apache 2.0

Google fork of Khronos reference front-end for GLSL and ESSL

MIT

Headless Android Heap Analyzer

Apache 2.0, LGPL 2.1

IAccessible2 COM interfaces for accessibility

BSD

ISimpleDOM COM interfaces for accessibility

MPL 1.1/GPL 2.0/LGPL 2.1

Khronos header files

MIT/X11, SGI Free Software License B

LZMA SDK

Public Domain

LeakCanary

Apache 2.0

LevelDB: A Fast Persistent Key-Value Store

New BSD

Material Design Icons

Apache 2.0

NSBezierPath additions from Sean Patrick O'Brien

BSD

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

OpenH264

2-Clause BSD

OpenMAX DL

BSD

PDFium

BSD

PLY (Python Lex-Yacc)

BSD

Paul Hsieh's SuperFastHash

BSD

Protocol Buffers

BSD

Quick Color Management System

MIT

SMHasher

MIT, Public Domain

SPIR-V Tools

MIT

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

The USB ID Repository

BSD

The library to input, validate, and display addresses.

Apache 2.0

V8 JavaScript Engine

BSD

Vulkan API headers

MIT

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

boringssl

BSDish

bspatch

BSD 2-Clause License

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

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

libFuzzer

University of Illinois/NCSA Open Source

libcxx

MIT, University of Illinois/NCSA Open Source License

libcxxabi

MIT, University of Illinois/NCSA Open Source License

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

libunwind

MIT, University of Illinois/NCSA Open Source License

libusbx

LGPL 2.1

libva

MIT

libvpx

BSD

libxml

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

nmoinvaz/minizip

Custom license

open-vcdiff

Apache 2.0, MIT, GPL v2 and custom licenses

opus

BSD

re2 - an efficient, principled regular expression library

BSD 3-Clause

sfntly

Apache 2.0

simplejson

MIT

sqlite

Public domain

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

MIT

wayland-protocols

MIT

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

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