We love open-source software, and use the following in our various product services. Thank you, open-source community, for making these fine tools! Some of these are listed under multiple software licenses, and in that case we have listed the license we’ve chosen to use.



CentOS GPLv2
Boost Boost
TBB GPLv2 – with runtime exception
Qpid APLv2
Protobuf BSD
postgreSQL PostgreSQL / BSD / MIT
Cassandra APLv2
Jboss LGPLv2.1
jQuery MIT
Boostrap MIT
Spring APLv2
Hibernate LGPLv2.1
Underscore MIT
Backbone MIT
D3 BSD 3-clause