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

bootstrap

A sleek, intuitive and powerful mobile first front-end framework for faster and easier web development. Since...

fatcache

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

Bijection

A Bijection is an invertible function that converts back and forth between two types, with the contract that a round-trip through the...

libcrunch

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

...

Scrooge

Scrooge is a Thrift code generator written in Scala, which currently generates code for Scala and Java.

It’s meant to be a...

Pants

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

Aurora

Aurora is a scheduler that provides all of the primitives necessary to quickly deploy and scale stateless and fault tolerant services in...

Twitter Util

Miscellaneous Idiomatic Scala Utilities and wrappers

cascading

Cascading is a Java application framework that enables typical developers to quickly and easily develop rich Data Analytics and Data...

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Featured Contributors

marius eriksen
marius eriksen
@marius
Johan Oskarsson
Johan Oskarsson
@skr
Kirill
Kirill
@KL7
Chris Severs
Chris Severs
@ccsevers
Ngoc Dao
Ngoc Dao
@ngocdaothanh
@lahosken
@lahosken
@lahosken
Ximing Yu
Ximing Yu
@ximyu
Pankaj Bhambhani
Pankaj Bhambhani
@pankajb64
wilhelm bierbaum
wilhelm bierbaum
@wil
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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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