GNOME Planner is a cross-platform project management tool based on the Work breakdown structure (WBS). Developed by Richard Hult and Mikael Hallendal, Imendio
License: Open Source
Gantter is a more feature-rich project management tool with strong resource management and collaboration capabilities, making it suitable for teams and complex projects. In contrast, GNOME Planner is an open-source, lightweight option ideal for individual users or small projects, focusing on simplicity and offline use.