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:

ANGLE array bounds clamper from WebKit

BSD

ARCore SDK

Apache 2.0

AXE-CORE Accessibility Audit

MPL 2.0

Abseil

Apache 2.0

Alliance for Open Media Video Codec

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

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

Dawn

Apache 2.0

Emoji Segmenter

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

Fuchsia NDK

BSD 3-Clause, MIT, GPL v2

GVR Android SDK

Apache 2.0

GVR Keyboard

Apache 2.0

GifPlayer Animated GIF Library

Apache License 2.0

Google Ink

Apache 2.0

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

Khronos reference front-end for GLSL and ESSL

MIT

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

Netwide Assembler

2-Clause BSD

Network Security Services (NSS)

MPL 2

OTS (OpenType Sanitizer)

BSD

Oculus SDK for Windows

By exception only

Open Screen Protocol Library

BSD

OpenH264

2-Clause BSD

OpenMAX DL

BSD

OpenVR SDK

BSD 3-Clause

PDFium

BSD

PFFFT: a pretty fast FFT.

BSD-like

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

bspatch

BSD 2-Clause License

d3

BSD 3-Clause

dav1d is an AV1 decoder :)

2-Clause BSD

dom-distiller-js

BSD

dynamic annotations

BSD

enum34

BSD

fdlibm

Freely Distributable

ffmpeg

LGPL 2.1

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

xxHash

BSD

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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