GitHub is a web-based Git or version control service.

OpenProj is an open source project management software application.

Avaza is a beautiful online software suite with modules for Project Management, Timesheets, Expenses & Invoicing. Access from anywhere, with any device.

ProjectLibre is an open source, freely available project management software system intended ultimately as a standalone replacement for Microsoft Project.

Nozbe is a to-do, task, project and time management application.

Hudson is an extensible Continuous Integration Server.

Jenkins is a self-contained Java-based program, ready to run out-of-the-box, with packages for Windows, Mac OS X and other Unix-like operating systems.

Bric is software that helps you manage your professional services team’s time.

ERPNext is a free and open-source integrated Enterprise Resource Planning (ERP) software.

Skwish freelance is a project management tool packed full of features to help manage scopecreep; collaborations, finances, invoicing and teams you're working …

Buildbot is a software development continuous integration tool which automates the compile/test cycle required to validate changes to the project code base.

GitPrep is a portable GitHub system.