Ohloh Code IS the upgraded Koders.com, and is a free public code search engine for 10+ billion lines of open source code.

The Ohloh Code search database is populated and updated from a new, automated integration with Ohloh’s project list. We’ve rebuilt the code search engine (also available for private code search: www.blackducksoftware.com/code-sight). We’ve migrated the entire code base from .NET to Java (our team’s language of choice).