Chromium
Chromium is a free, open-source browser project and codebase for developers who build, study, and contribute to web software.
What Chromium is
Chromium is a free, open-source browser project and codebase for developers who build, study, and contribute to web software. Its project site provides source code, design documents, architecture overviews, testing information, build guidance, and contribution instructions. Chromium develops the V8 JavaScript engine and Blink rendering engine. Its published security approach includes sandboxing, Safe Browsing, defense in depth, and safe defaults, while a security team reviews architecture and helps address security bugs. Build documentation covers Windows, Mac, Linux, iOS, and Android, and the download archive lists Mac, Windows, Linux, and ChromiumOS. Builds are offered on a best-effort basis from arbitrary revisions, so they may differ from user-facing Chrome releases. They do not auto-update and do not include symbols. The source code uses a permissive BSD license, and Google uses Chromium as the basis for Google Chrome. Developers can contribute code, report bugs, and join discussions.
Good
- Free and open source
- Includes V8 and Blink development
- Security architecture documentation available
- Build guidance covers desktop and mobile systems
- Developer contribution channels are provided
Watch out
- Builds do not auto-update
- Builds lack symbols
- Downloads may differ from Chrome releases
- Site Isolation has documented Android limitations
Who it suits
Chromium suits developers learning about or contributing to an open-source browser project. It is also relevant to people building Chromium for supported desktop and mobile platforms.
Verdict
Chromium provides source, documentation, engines, security guidance, and build resources for browser developers. Its best-effort builds require users to handle updates themselves.
The facts
Each one read from Chromium's own pages, with the date it was checked.
What it does
- Audience
- The Chromium site provides source code, design documents, architecture overviews, testing information, and contribution guidance for people who build and work with Chromium.checked 12 Oct 2026
- Build availability
- Chromium builds are made available on a best-effort basis from arbitrary revisions that may not match user-facing Chrome releases.checked 12 Oct 2026
- Build limitation
- The download page says Chromium builds do not auto-update and do not have symbols.checked 12 Oct 2026
- Community
- The project invites developers to contribute code, report bugs, and participate in discussions.checked 12 Oct 2026
- Developer support
- The project directs people who need help with the code to the chromium-dev Google Group or the #chromium IRC channel, and says these are not support channels for Chrome itself.checked 12 Oct 2026
- Downloads
- Chromium builds are offered on a best-effort basis and come from arbitrary revisions that may not correspond to user-facing Chrome releases.checked 12 Oct 2026
- Engines
- The project develops the V8 JavaScript engine and Blink rendering engine.checked 12 Oct 2026
- Extensions
- Chromium's extension documentation links developers to reference documentation, samples, tutorials, FAQs, discussion groups, and videos.checked 12 Oct 2026
- Google relationship
- A Chromium Blog post describes Chromium as the open-source project and browser source code maintained at chromium.org, which Google uses as the basis for Google Chrome.checked 12 Oct 2026
- Intended audience
- The project site describes itself as intended for developers learning about and contributing to the open-source projects.checked 12 Oct 2026
- License
- Google released the Chromium source code under a permissive BSD license.checked 12 Oct 2026
- Open source
- Yeschecked 21 Sep 2026
- Product
- Chromium is an open-source browser project intended to provide a safer, faster, and more stable way to experience the web.checked 12 Oct 2026
- Project purpose
- The Chromium Projects site provides documentation and code for developers interested in learning about and contributing to the open-source projects.checked 12 Oct 2026
- Security
- The security principles describe sandboxing, Safe Browsing, defense in depth, and safe defaults as parts of the browser’s security approach.checked 12 Oct 2026
- Security limits
- The Site Isolation documentation says it is not supported in Android WebView or on Chrome for Android devices with less than 2 GB of RAM.checked 12 Oct 2026
- Security process
- The security team reviews architecture, helps find and fix security bugs, and provides security consulting to the broader Chromium project.checked 12 Oct 2026
- Security tradeoff
- The project documents increased memory use as a Site Isolation tradeoff, estimating about 10–13% on desktop with many tabs open in Chrome 67.checked 12 Oct 2026
- Support
- The project directs developers who need help to the chromium-dev Google Group or IRC channel and says these are not support channels for Chrome itself.checked 12 Oct 2026
Where it runs
- Browser engine
- otherchecked 21 Sep 2026
- Build platforms
- The project documents building Chromium on Windows, Mac, and Linux host systems, as well as iOS and Android build instructions.checked 12 Oct 2026
- Download platforms
- The Chromium build archive lists Mac, Windows, Linux, and ChromiumOS as platform choices.checked 12 Oct 2026
- Platform support
- The project documents builds for Windows, Mac, Linux, iOS, and Android; the download page lists Chromium builds for Mac, Windows, Linux, and ChromiumOS.checked 12 Oct 2026
- Supported platforms
- bothchecked 21 Sep 2026
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