GitHub - 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.
Unfuddle - Unfuddle is a secure, hosted project management solution for software development teams.
GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
Backlog - A cloud-based project management app for developers and their teams.
NotABug.org - Free open-source code hosting.
TaskBlast - Versatile and easy to use Project Management tool to get all team members involved.