Apache Log4net is a versatile, feature-rich, efficient logging API
is low code bpm platform, which is easy to install and easy to use
Development Platform for Web and Mobile Applications
.NET, PowerShell, SQL, Java, Perl, and Javascript developer libraries
Web development IDE in browser, supports Java, ruby, javascript...etc
UML 2 Statemachine for C++ is a development framework with DSL support
Database schema tool