What Significant Google Products Are Open Source?

Question

I know that Google does some open source but a lot of their assets are very closed source. What are the main ones that are open source and those not?

• Android - fully open (I think)
• GMail - Closed
• Search - Obviously closed
• Chrome - Some open source bits (webkit)... but I'm not sure
• JavaScript compilers (that Steve Yegge is working with)
• Youtube - Closed
• Feedburner - Closed Blogger - Closed

I am struggling to come up with big pro-OSS products from Google.

Answer 1

(Disclaimer: I'm a Google employee, and therefore obviously biased :)

Have a look at this page for a fairly large list of our open source APIs and projects. (I'm particularly involved in Protocol Buffers and the C# port.)

Other things to consider off the top of my head, some of which are no doubt on that list:

• Google Java collections
• GWT (Google Web Toolkit)
• Wave (in the future)

You might also consider code.google.com to be a "pro-OSS product" in its own right.

Answer 2

Chrome is entirely open-source, as Chromium.

Answer 3

Google CTemplate, a templating library for C++.

Answer 4

http://code.google.com/p/zxing/ ZXing multi-format 1D/2D barcode image processing library implemented in Java. Possibly it's not the main one and not the highest quality but I've found it useful and open-source as opposed to most other such libraries.

Answer 5

Jaiku, as of recenty.