GanttProject Overview
GanttProject is an open-source project planning application for creating Gantt charts, task schedules, milestones, resource assignments, and project calendars. This listing now points to the official GanttProject 3.3.3316 release files hosted by the publisher on GitHub, including Windows MSI/EXE/ZIP packages, separate macOS builds for Apple Silicon and Intel, and a Linux DEB package. The direct packages are useful for project teams, labs, and managed desktops because each installer can be saved once, copied to a USB drive or software share, and installed without using a generic download page. Use the Windows MSI for standard deployment, the macOS DMG that matches the Mac processor, or the Linux DEB on Debian and Ubuntu based systems. The GanttProject offline installer is the standalone setup for Windows/macOS/Linux — the full setup file deploys in schools, offices, and air-gapped workstations where on-demand installer downloads aren't possible.