poche : poche is a self hosted read-it-later app. unlike to other services, poche is free and open source.
Gitea : Gitea is a community managed fork of Gogs, lightweight code hosting solution written in Go and published under the MIT license.
Sourcegraph : Sourcegraph Server is a free, self-hosted code search server that integrates with your code host and supports multi-repository, regexp, and diff searc...
ProjectPier.org : ProjectPier is a Free, Open-Source, PHP application for managing tasks, projects and teams through an intuitive web interface. It must be downloaded a...
GitPrep is Github clone. you can install portable github system into unix/linux. You can create users and repositories without limitation.