Open Source at Twitter

Working with and contributing to the open source community

Open Source Projects
Twitter engineers use, contribute to and release a lot of open source software. We are thankful to work with a variety of projects and communities.
Community
Twitter supports a number of open source organizations and communities with contributions or official membership.
Contributors
We are thankful to everyone who has contributed to our projects.

Featured Projects

Finatra

Fast, testable, Scala HTTP services built on Finagle and Twitter-Server.

See the...

Algebird

Abstract algebra for Scala. This code is targeted at building aggregation systems (via Scalding or Storm). It was originally developed...

Twitter Commons

Twitter common libraries for Python and the JVM.

Summingbird

Summingbird is a library that lets you write MapReduce programs that look like native Scala or Java collection transformations and...

Hosebird Client (HBC)

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

Tormenta

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

mysql

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

Snowflake

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

libcrunch

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

...

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Featured Contributors

Ryan Greenberg
Ryan Greenberg
@greenberg
from the future
from the future
@nk
Tanin Na Nakorn
Tanin Na Nakorn
@tanin
Blake Smith
Blake Smith
@blakesmith
Ryan LeCompte
Ryan LeCompte
@ryanlecompte
brian wickman
brian wickman
@wickman
P. Oscar Boykin
P. Oscar Boykin
@posco
Franklin Hu
Franklin Hu
@thisisfranklin
Sébastien Cevey
Sébastien Cevey
@theefer
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Code of Conduct

Our Open Source Code of Conduct reflects the standards we hold ourselves within our open source projects and the communities we work with.
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Contributor's License Agreement

For certain Twitter open-source projects, Twitter requires you or your employer accept and submit a Contributors License Agreement (CLA) with Twitter. In order to address the intellectual property license granted with contributions, Twitter must have a CLA on file that has been submitted by each contributor. The CLA is designed for your protection as a contributor; it does not change your ownership of your contributions. By accepting the CLA, you represent that you have the rights needed to grant Twitter a license to the code.
Submit CLA
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