Heron is a realtime, distributed, fault-tolerant stream processing engine from Twitter
Pants Build System
Wonderful reusable code from Twitter
Repository for Twitter Open Source Decks
A fault tolerant, protocol-agnostic RPC system
Twitter common libraries for python and the JVM
Fast, testable, Scala services built on Twitter-Server and Finagle
Twitter-Server defines a template from which services at Twitter are built
A Thrift parser/generator
A Scala API for Cascading
The Twitter OSS Project Builder
OAuth-enabled curl for the Twitter API
Twitter Text Libraries
Twitter Kit is a native SDK to include Twitter content inside mobile apps.
Experimental Scala compiler focused on compilation speed
The official Twitter plugin for WordPress. Embed Twitter content and grow your audience on Twitter.
Scala extensions for the Kryo serialization library
Lessons in the Fundamentals of Scala
Streaming MapReduce with Scalding and Storm
typeahead.js is a fast and fully-featured autocomplete library
Find potential bugs in your services with Diffy
A listing of open source efforts at Twitter on GitHub
Vireo is a lightweight and versatile video processing library written in C++11
Twitter Kit for Android
Twitter's collection of LZO and Protocol Buffer-related Hadoop, Pig, Hive, and HBase code.
Anomaly Detection with R
Ruby implementation of the ICU (International Components for Unicode) that uses the Common Locale Data Repository to format dates, plurals, and more.
A fast, light-weight proxy for memcached and redis
A Thrift client wrapper that encapsulates some common failover behavior