Pure Chromium

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The Chromium projects include Chromium and Chromium OS, the open-source projects behind the Google Chrome browser and Google Chrome OS, respectively. This site houses the documentation and code related to the Chromium projects and is intended for developers interested in learning about and contributing to the open-source projects.
Chromium
Chromium is an open-source browser project that aims to build asafer, faster, and more stable way for all users to experiencethe web. This site contains design documents, architecture overviews,testing information, and more to help you learn to build and work withthe Chromium source code.

Download Google Chrome
Chromium OS
Chromium OS is an open-source project that aims to provide a fast, simple, and more secure computing experience for people who spend most of their time on the web. Learn more about the project goals, obtain the latest build, and learn how you can get involved, submit code, and file bugs.
Looking for Google Chrome OS devices?
Visit the Google Chrome OS site
Pure

When exceptionally pure chromium is required, the electrolytic process is used. Using this process, purities of up to 99.995% are possible. This is achieved by dissolving CrO3 Cr(VI) in sulfuric acid and using a galvanic deposition process to obtain chromium flakes. Chromium, a steely-gray, lustrous, hard metal that takes a high polish and has a high melting point, is a silvery white, hard, and bright metal plating on steel and other material. Commonly known as chrome, it is one of the most important and indispensable industrial metals because of its hardness and resistance to corrosion.

Pure Chromium Browser

Getting Involved‎ > ‎

Download Chromium


You can test Chrome builds or Chromium builds. Chrome builds have the most infrastructure for analyzing crashes and reporting bugs. They also auto-update as new releases occur, which makes them a good choice for most uses. Chrome Canary is available for Windows and Mac and autoupdates daily. Other channels (dev and beta) are available.
Chromium builds do not auto-update, and do not have symbols. This makes them most useful for checking whether a claimed fix actually works. Use the following instructions to find builds:

Easy Point and Click for latest build:

Open up https://download-chromium.appspot.com

Easy Script to download and run latest Linux build:

Not-as-easy steps:

  1. Head to https://commondatastorage.googleapis.com/chromium-browser-snapshots/
  2. Choose your platform: Mac, Win, Linux, ChromiumOS
  3. Pick the Chromium build number you'd like to use
    1. The latest one is mentioned in the LAST_CHANGE file
  4. Download the zip file containing Chromium
  5. There is a binary executable within to run

Please file bugs as appropriate.


Downloading old builds of Chrome / Chromium

Let's say you want a build of Chrome 44 for debugging purposes. Google does not offer old builds as they do not have up-to-date security fixes.
However, you can get a build of Chromium 44.x which should mostly match the stable release.
  1. Look in https://googlechromereleases.blogspot.com/search/label/Stable%20updates for the last time '44.' was mentioned.
  2. Loop up that version history ('44.0.2403.157') in the Position Lookup
  3. In this case it returns a base position of '330231'. This is the commit of where the 44 release was branched, back in May 2015.*
  4. Open the continuous builds archive
  5. Click through on your platform (Linux/Mac/Win)
  6. Paste '330231' into the filter field at the top and wait for all the results to XHR in.
  7. Eventually I get a perfect hit: https://commondatastorage.googleapis.com/chromium-browser-snapshots/index.html?prefix=Mac/330231/
    1. Sometimes you may have to decrement the commit number until you find one.
  8. Download and run!
* As this build was made at 44 branch point, it does not have any commits merged in while in beta.
Typically that's OK, but if you need a true build of '44.0.2403.x' then you'll need to build Chromium from the 2403 branch. Some PortableApps/PortableChromium sites offer binaries like this, due to security concerns, the Chrome team does not recommend running them.