Open Source at Twitter

Working with and contributing to the open source community

Featured Projects

Header Compression for HTTP/2.0

Bower is a package manager for the web originally created at Twitter and adopted by a large community.

It offers a generic, un-...

A simple and attractive code quality tool for CSS built on top of LESS.

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

Zipkin is a distributed tracing system that helps us gather timing data for all the disparate services at Twitter.

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


Snowflake is a network service for generating unique ID numbers at high scale with some simple guarantees.

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

Scala extensions for the Storm distributed computation system. Tormenta adds a type-safe wrapper over Storm’s Kafka and Kestrel...

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