is chrome browser open source

kf10 said:

or closed source???????????

Google Chrome browser itself is not open source.

However its counterpart "Chromium" (commonly known as Nightly Builds) are open source. Are you looking for the source code?

kf10 said:

no i just wondering, as google is champion of open source

I wouldn't call them a champion of open source, rather a leader. Just as Canonical (where Ubuntu is concerned).

RobinSchouten said:

I believe Google Chrome uses the H.264 HTML5 video codec, which isn't open-cource.

Correct, also Developer Builds of Google Chrome are bundled with Flash Player, which is also not open source.