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A web-based project management tool, offering basic project and customer management. (PHP)

C++ parser for which converts XML-based project files into Gantt charts

BSD-licensed PHP-MySQL web-based project management application, with Gantt chart support

Issue tracking and project management. Part of Gnu Enterprise project.

Graphical Java program for editing Gantt charts. GPL

This part of the GForge collaborative development environment allows fine-grained control over tasklists, bugtracking, and gantt charts, with account management integrated into the overall product.

Web-based groupware tool which includes calendar, project-management, time-card management, PDA synchronization, email, voting system and personal to-do list management

Open source project planning and management application for the GNOME desktop.

Web-based project resource planning system, with project rooms, and tools for managing clients, invoices, time, and cost. Designed for the advertizing, IT consulting, translation and knowledge management sectors.

Open source, platform-independent, web-enabled project management tool for software projects based on Perl and MySQL.