Qt WebEngine 许可

The Qt WebEngine module uses Chromium to provide most of its functionality. During the build process, Chromium becomes a part of the Qt WebEngine Core library. Therefore, when distributing Qt WebEngine, users need to comply to both the licenses of the Qt WebEngine part as developed under the Qt Project, as well as the licenses that are part of Chromium.

The Qt specific parts of the Qt WebEngine module are available under commercial licenses from The Qt Company. Alternatively, they are available under GNU Lesser General Public License v3.0, or GNU General Public License v3.0, or GNU General Public License v2.0.

The Chromium part contains code available under various licenses, with the most restrictive license being the GNU Lesser General Public License v2.1 (LGPL 2.1). For a full list, see Third-Party Licenses 下文。

Complying with LGPL 2.1

The Qt Company allows commercial customers to distribute the source code of the Qt WebEngine module alongside the Qt WebEngine binaries, and allows recipients to customize and build Qt WebEngine from sources. This includes building and using such a modified Qt WebEngine with an application or system using an otherwise commercially licensed Qt.

The Qt Company also keeps the Qt specific parts of the Qt WebEngine module available under the GNU Lesser General Public License v3.0, or the GNU General Public License v3.0, or the GNU General Public License v2.0, even if WebEngine is released as part of a commercial-only Long-Term Support release (LTS, see also LTS (长期支持) 发行 ).

Third-Party Licenses

Third party licenses included in the sources as part of Chromium are found below.

注意： Any GPL licenses listed below are only used to access Linux system resources. The Qt WebEngine libraries and plugins does not link to nor distribute GPL binary code, and it does not affect users of Qt WebEngine.

@puppeteer/replay	Apache-2.0
@vscode/web-custom-data	MIT
AXE-CORE 可访问性审计	MPL 2.0
Abseil	Apache 2.0
Abseil	Apache 2.0
Acorn, a tiny, fast JavaScript parser written in JavaScript.	MIT
开放媒体视频编解码器联盟	BSD
开放媒体视频编解码器联盟	BSD
几乎本机图形层引擎	BSD
Android 明确同步	Apache 2.0
Android 明确同步	Apache 2.0
BoringSSL	BSDish
BoringSSL	BSDish
Brotli	MIT
Brotli	MIT
C++ Signal/Slot Library	自定义许可
C++ Signal/Slot Library	自定义许可
CRC32C	新 BSD
CRC32C	新 BSD
CSP Evaluator Core Library, a tool that allows developers to check if a Content Security Policy (CSP) serves as mitigation against XSS attacks	Apache
Chromium 许可	BSD
Closure Library	Apache 2.0
CodeMirror 5	MIT
CodeMirror 6	MIT
紧凑编码检测	Apache 2.0
紧凑编码检测	Apache 2.0
紧凑语言检测器第 3 版	Apache 2.0
Crashpad	Apache 2.0
Crashpad	Apache 2.0
Dawn	BSD 3 条款
Devtools-Frontend	BSD
Emoji Segmenter	Apache 2.0
Expat XML Parser	MIT
Expat XML Parser	MIT
FP16	MIT
FXDiv	MIT
Fiat-Crypto: Synthesizing Correct-by-Construction Code for Cryptographic Primitives	MIT
Fiat-Crypto: Synthesizing Correct-by-Construction Code for Cryptographic Primitives	MIT
FlatBuffers	Apache 2.0
General Purpose FFT (Fast Fourier/Cosine/Sine Transform) Package	Custome license
General Purpose FFT (Fast Fourier/Cosine/Sine Transform) Package	Custome license
Google Double Conversion	BSD
Google Double Conversion	BSD
Headers for the Windows 10 WebAuthn API (webauthn.dll)	MIT
Highway: C++ library for SIMD	Apache 2.0
Implementation of WebDriver BiDi standard	Apache 2.0
LevelDB：快速持久键值存储	新 BSD
Lighthouse	Apache 许可 2.0
Lighthouse i18n.js	Apache 许可 2.0
Lit	BSD-3
Lit	BSD 3 条款
Lit	BSD 3 条款
Marked	MIT
Material color utilities	Apache 许可 2.0
Metrics Protos	BSD
Metrics Protos	BSD
NVidia Control X 扩展库	MIT
OTS (OpenType Sanitizer)	BSD
One Euro Filter	BSD
PDFium	BSD
PFFFT: a pretty fast FFT.	BSD-like
PFFFT: a pretty fast FFT.	BSD-like
Perfetto	Apache2
Perfetto	Apache2
Polymer	BSD
Polymer	BSD
协议缓冲	BSD
协议缓冲	BSD
Puppeteer Core	Apache-2.0
QUICHE	BSD
QUICHE	BSD
用于音频降噪的递归神经网络	BSD 3 条款
用于音频降噪的递归神经网络	BSD 3 条款
Selenium Atoms	Apache 2
Sizzle	MIT, BSD, GPL v2
Snappy：快速的压缩器/解压缩器	新 BSD
Speech Dispatcher	GNU Lesser Public License
Chromium 工程	BSD 3-clause "New" or "Revised" License
Chromium 工程	BSD 3-clause "New" or "Revised" License
The Diff Match and Patch libraries offer robust algorithms to perform the operations required for synchronizing plain text.	Apache 许可 2.0
The Incremental Distributed Point Functions library	Apache 2.0
URL Pattern Library	MIT
V8 fork of fdlibm	fdlibm license
Volk Meta loader for Vulkan API	MIT
Vulkan Deps	BSD
Vulkan Deps	BSD
VulkanMemoryAllocator	MIT
Wasmparser	Apache
WebKit	BSD 和 LGPL v2 及 LGPL v2.1
WebKit	BSD 和 LGPL v2 及 LGPL v2.1
WebM 容器剖析器和写入器。	BSD
WebP 图像编码器/解码器	BSD
WebP 图像编码器/解码器	BSD
WebRTC	BSD
WebRTC	BSD
Wicked Good XPath	MIT
Wuffs (安全争执不可信文件格式)	Apache 2.0
Wuffs (安全争执不可信文件格式)	Apache 2.0
XNNPACK	BSD
Zstandard	BSD, GPLv2
Zstandard	BSD, GPLv2
cpuinfo	BSD
d3	BSD 3 条款
d3	BSD 3 条款
dav1d is an AV1 decoder :)	2 条款 BSD
dav1d is an AV1 decoder :)	2 条款 BSD
动态注解	BSD
动态注解	BSD
ffmpeg	LGPL 2.1
flac	BSD
fontconfig	MIT
fontconfig	MIT
google-glog's symbolization library	BSD
google-glog's symbolization library	BSD
google-jstemplate	Apache 2.0
google-jstemplate	Apache 2.0
harfbuzz-ng	MIT
harfbuzz-ng	MIT
hunspell	MPL-1.1
icu	MIT
icu	MIT
审查器协议	BSD
审查器协议	BSD
intl-messageformat	新 BSD
ipcz	BSD
ipcz	BSD
jsoncpp	MIT
jsoncpp	MIT
libaddressinput	Apache 2.0
libavif - Library for encoding and decoding .avif files	2 条款 BSD
libavif - Library for extracting metadata from .avif files	2 条款 BSD
libevent	BSD
libevent	BSD
libgav1	Apache 2.0
libpng	libpng 许可
libpng	libpng 许可
libsrtp	3-clause BSD
libsrtp	3-clause BSD
libvpx	BSD
libvpx	BSD
libxml	MIT
libxslt	MIT
libyuv	BSD
libyuv	BSD
mesa_headers	MIT 和 SGI 自由软件 B 许可第 2.0 版
minigbm	BSD
modp base64 decoder	BSD
modp base64 decoder	BSD
opus	BSD
opus	BSD
pthreadpool	BSD
re2 - 高效、原则性强的正则表达式库	BSD 3 条款
re2 - 高效、原则性强的正则表达式库	BSD 3 条款
sql sqrt floor	自定义许可
sql sqrt floor	自定义许可
sqlite	blessing
sqlite	blessing
woff2	MIT
xdg-user-dirs	MIT
xdg-user-dirs	MIT
zlib	Zlib
zlib	Zlib