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GanttProject

GanttProject is a free, open-source desktop project-scheduling application for Windows, macOS, and Linux, written in Java and licensed under GPL-3.0. Maintained since 2003 by BarD Software, it focuses on Gantt charts, task hierarchies and dependencies, milestones, resource assignments with load charts, PERT charts, and baselines, and can import/export Microsoft Project files plus export to PDF and HTML. It is a lightweight, single-user alternative to Microsoft Project.

3.5/5desktop-ganttFree (open-source desktop app, GPL-3.0)

Our verdict

Last verified Jun 15, 2026

A dependable, genuinely free Gantt-scheduling desktop tool maintained for two decades under GPL-3.0, ideal for simple project plans with full local data control and MS Project file exchange. Held back because it is single-user desktop software (not a self-hosted server) with a basic feature set and minimal collaboration.

Rating
3.5/5
Editorial score
Users
0
Verified users
Starting at
Free (open-source desktop app, GPL-3.0)
open-source free desktop; optional paid cloud storage (GanttProject Cloud)
Category
desktop-gantt
Market segment

Key Features

Gantt charts with task hierarchy and dependencies
Milestones and baselines
Resource assignment and load charts
PERT charts
Critical path
Import/export Microsoft Project files
Export to PDF and HTML
Runs on Windows, macOS, and Linux

Pros & cons

Pros

  • Completely free and open-source under GPL-3.0
  • Simple, focused Gantt scheduling with dependencies and baselines
  • Imports/exports Microsoft Project files
  • Cross-platform and maintained since 2003

Cons

  • Desktop, single-user — not a self-hosted multi-user server
  • Basic feature set compared with full PM suites
  • Collaboration requires the separate paid GanttProject Cloud storage

Detailed Information

No information available for Inventory Tracking Methods.

Best For

Individuals and small teams needing simple Gantt scheduling for freePlanners who want a lightweight MS Project alternative on the desktopUsers who value full local control of project files

Not ideal for

Teams needing real-time, multi-user server collaborationAgile teams wanting boards, sprints, or issue tracking

Integrations

Microsoft Project (import/export)
PDF / HTML export
CSV export

Frequently Asked Questions

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0 verified users

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Additional Information

Category
desktop-gantt
Price Range
Free (desktop)
Pricing Model
open-source free desktop; optional paid cloud storage (GanttProject Cloud)

Company

Founded
2003