SourceForge
GitHub
GitLab
BitBucket
openDesktop.org
Gitea
Launchpad.net
OSOR
KSQL
Confluent
Kafka Streams
Apache NiFi
Apache Flink
Apache Storm
Zeliot Condense
Timeplus
SourceForge
KSQLGitHub - Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
Confluent - Confluent offers a real-time data platform built around Apache Kafka.
GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
Kafka Streams - Apache Kafka: A Distributed Streaming Platform.
BitBucket - Bitbucket is a free code hosting site for Mercurial and Git. Manage your development with a hosted wiki, issue tracker and source code.
Apache NiFi - An easy to use, powerful, and reliable system to process and distribute data.