Open Source at Twitter

Working with and contributing to the open source community

Featured Projects

SPDY for iOS and OS X. See our blog post for more information....

The Apache Hadoop software library is a framework that allows for the distributed processing of large data sets across clusters of...

Apache Mesos is a cluster manager that provides efficient resource isolation and sharing across distributed applications, or frameworks...

Finagle is an asynchronous network stack for the JVM that you can use to build asynchronous Remote Procedure Call (RPC) clients and...

Miscellaneous Idiomatic Scala Utilities and wrappers

Finatra is a sinatra-inspired web framework for scala, running on top of Finagle

See the...

MySQL is the persistent storage technology behind most Twitter data: the interest graph, timelines, user data and the Tweets themselves...

Scalding is a Scala library that makes it easy to specify Hadoop MapReduce jobs. Scalding is built on top of Cascading, a Java library...

Twitter common libraries for Python and the JVM.

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