This versioning scheme and the branch points that occur every six to seven weeks are from Google Chrome and its development cycle. īuilds are identified by a four-part version number that is. The Chromium continuous integration system automatically builds and tests the codebase several times a day. Participants are identified by their email addresses. The bug tracking system is a publicly accessible website. (A copy of Apple's WebKit engine is also in the codebase, since it is required for iOS browsers. Support for mobile operating systems requires special languages: Java for Android, and for iOS both Swift and Objective-C. This is mostly from third-party libraries that provide essential functionality, such as SQLite and numerous codecs. Ībout 10% of the codebase is written in C. An extensive collection of web platform tests are also written in these languages. Some of the user interface is implemented in HTML, CSS, and JavaScript. This includes the Blink and V8 engines, the implementation of HTTP and other protocols, the internal caching system, and other essential browser components. Some employees of these companies also have email addresses.Ĭ++ is the primary language, comprising about half of the codebase. The Chromium browser codebase is widely used, so others have made important contributions, most notably Microsoft, Igalia, Yandex, Intel, Samsung, LG, Opera, and Brave. However, in terms of governance, "Chromium Projects" are not independent entities Google retains firm control of them. Google refers to this project and the offshoot Chromium OS as "The Chromium Projects", and its employees use email addresses for this development work. Contributors Ĭhromium has been a Google project since its inception, and Google employees have done the bulk of the development work. The Chromium browser codebase contains about 35 million source lines of code. Unlike Chromium, Chrome is not open-source, so its binaries are licensed as freeware under the Google Chrome Terms of Service. While Chrome has the same user interface functionality as Chromium, it changes the color scheme to the Google-branded one. Tracking mechanisms for usage and crash reports.Licensed codecs for the popular H.264 video and AAC audio formats.API keys for some Google services, including browser sync.Features Ĭhromium lacks the following Chrome features:
#Bst chrome based browsers code
Differences from Google Chrome Ĭhromium provides the vast majority of source code for Google Chrome, so the name "Chromium" was chosen by Google because chromium metal is used in chrome plating. Thus many Linux distributions do this, as well as FreeBSD and OpenBSD. This licensing permits any party to build the codebase and share the resulting browser executable with the Chromium name and logo. Other parts are subject to a variety of licenses, including MIT, LGPL, Ms-PL, and an MPL/ GPL/ LGPL tri-license. The Google-authored portion is shared under the 3-clause BSD license.
#Bst chrome based browsers software
All versions released with the Chromium name and logo are built by either The Chromium Projects, or other parties.Ĭhromium is an entirely free and open-source software project. Google itself does not provide an official stable version of the Chromium browser, although it provides some official API keys for some included functionality, such as speech to text, text to speech, translation, etc. Moreover, significant portions of the code are used by several app frameworks. Microsoft Edge, Samsung Internet, Opera, and many other browsers are based on the code. This codebase provides the vast majority of code for the Google Chrome browser, which is proprietary software and has some additional features. IA-32, x86-64, ARM, any C++-supported platform (source code)Ĭhromium is a free and open-source web browser project, principally developed and maintained by Google. Windows, Linux, Android, iOS, macOS, BSDs com /chromium /srcĬ++ primarily HTML, CSS, JavaScript for UI and test suite
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