Open Source at Twitter

Working with and contributing to the open source community

Featured Projects

Libcrunch is a lightweight mapping framework that maps data objects to a number of nodes, subject to user-specified constraints.

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A Java HTTP client for consuming Twitter’s Streaming API. Features * GZip support * OAuth support * Partitioning support * Automatic...

Pants is a build system for software projects in a variety of languages. It works particularly well for a single source code repository...

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 Ambrose is a platform for visualization and real-time monitoring of MapReduce data workflows. It presents a global view of all...

Storehaus is a library that makes it easy to work with asynchronous key value stores. Storehaus is built on top of Twitter’s...

A Ruby implementation of the ICU (International Components for Unicode) that uses the Common...

fatcache is memcache on SSD. Think of fatcache as a cache for your big data.

Header Compression for HTTP/2.0

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