Choose free Gantt chart software by asking what should happen when dates change. If a website migration slips and QA must move with development, use a scheduler with dependencies and downstream rescheduling. If you only need a slide showing the planned sequence, a spreadsheet or presentation timeline may be enough.
This comparison covers eight options by operating model and free-access terms, not by unverified ratings or claims of hands-on testing. Official vendor documentation was checked on October 27, 2026. Pricing, plan limits, and feature availability can change.
The central distinction is simple: a scheduling engine maintains relationships between tasks, while a visual timeline mainly communicates dates. Treat that distinction as a buying requirement, not a feature-count exercise.
Free Gantt chart software: the short answer
Start with one operational question: when a task slips, must its dependent tasks move automatically?
- For a connected online schedule: consider ClickUp or TeamGantt. ClickUp documents dependency rescheduling and critical-path display, while TeamGantt offers a tightly capped free plan.
- For local desktop planning: consider ProjectLibre Desktop or GanttProject. Both document Windows, macOS, and Linux support. GanttProject is free and open-source, while ProjectLibre Desktop is positioned for individual local planning.
- For a dedicated scheduler trial: GanttPRO offers a 14-day fully featured trial without a credit card.
- For an existing Asana workflow: Instagantt’s free option is linked to Asana and limited to three projects.
- For reporting or a simple visual: Lucen Timeline is presentation-oriented. Google Sheets Timeline depends on Workspace eligibility, and Excel’s standard Gantt-like chart is manually maintained.
Dates drive dependent work
Choose this when an upstream change should shift linked tasks. Enter the dependency logic, move one date, and inspect the result before treating the schedule as a baseline.
Dates communicate a plan
Choose this when the main deliverable is a slide or simple chart. Assign an owner to update dates when the plan changes because the chart alone does not maintain schedule logic.
What “free” means in this comparison
Free access is not one uniform offer. It may mean free software installed locally, a capped cloud plan, access tied to another product, a trial that expires, or a visual tool with item or watermark restrictions.
- Free with caps: TeamGantt currently lists one user, one project, and 40 tasks on its free Personal plan. It includes basic dependencies and drag-and-drop scheduling.
- Free local desktop software: GanttProject describes its desktop product as free and open-source, with no required signup, subscription, trial period, feature gates, or usage cap. ProjectLibre Desktop is free local software for individual project planning. That does not establish unlimited collaborative cloud use.
- Free access tied to another product: Instagantt’s free Asana-linked option covers up to three Asana projects. Its standalone offering is separate and trial-based.
- Free trial: GanttPRO lists a 14-day fully featured trial without a credit card. Continued use beyond the trial requires checking the current paid terms.
- Free but restricted presentation tools: Lucen’s free experience is subject to a 10-item watermark or related free-tier restriction. The exact rule can differ between Timeline Online and the PowerPoint add-in, so check the live plan comparison.
- Visual tools with eligibility or manual upkeep: Google Sheets Timeline is available only with eligible Workspace editions. Excel can display a Gantt-like chart using a customized stacked bar chart.
Record the exact edition, project limit, task limit, user limit, trial end date, watermark rule, and export path before adopting a free tier. A free plan that fits one project may not fit the next one.
Compare 8 free Gantt chart options by operating model
The useful comparison fields are the source of truth, collaboration mode, schedule recalculation, and free-tier constraint. A chart with bars is not necessarily a scheduling engine.
| Option | Best fit | Verified free-access trade-off |
|---|---|---|
| TeamGantt | One focused online project | Free Personal currently lists one user, one project, and 40 tasks. Basic dependencies and drag-and-drop scheduling are included. |
| ProjectLibre Desktop | Individual local planning | Free desktop application for Windows, macOS, and Linux. Microsoft Project compatibility is documented; validate imported details on a copy. |
| ClickUp | Gantt view alongside work tasks | Gantt functionality is available on Free Forever. Confirm current Gantt-specific usage allowances rather than assuming unlimited use. |
| GanttProject | Free local-first scheduling | Free and open-source, with no required signup or usage cap stated by the vendor. Desktop use is distinct from browser-live collaboration. |
| GanttPRO | Evaluating a dedicated online scheduler | 14-day fully featured trial with no credit card required. Check current paid terms before adopting it beyond the trial. |
| Instagantt | Teams whose task source is Asana | Free Asana-linked option covers up to three projects and documents bidirectional synchronization. Standalone access is separate. |
| Lucen Timeline | Stakeholder-facing PowerPoint timelines | Presentation-oriented, with a free item-related restriction or watermark condition that varies by product and account terms. |
| Google Sheets Timeline and Excel | Simple visual schedules maintained manually | Sheets Timeline requires an eligible Workspace edition. Excel’s standard approach is a customized stacked bar chart, not native dependency scheduling. |
What the scheduling options actually do
ClickUp: Official help documents adding dependencies in Gantt View, enabling downstream dependency rescheduling, displaying the critical path, and showing milestones. Its pricing page lists a Free Forever plan. Check current Gantt usage limits before assigning a large plan to it. Read ClickUp’s Gantt instructions.
ProjectLibre Desktop: ProjectLibre documents local desktop planning, Windows, macOS, and Linux support, and Microsoft Project compatibility. It positions Desktop for individual project planning, while its cloud product is aimed at collaboration and multi-project work. Compatibility does not guarantee that every file version or proprietary feature transfers unchanged.
GanttProject: The desktop product documents dependencies, constraints, baselines, resource management, PERT views, cost calculation, and exports including PDF, HTML, PNG, and CSV. It is a local-first choice, not a promise of simultaneous browser editing.
TeamGantt: The current free Personal plan has a clear ceiling of one user, one project, and 40 tasks. It is worth considering when one small plan fits the cap, not when several people need free access.
GanttPRO: Its official pricing page lists a 14-day trial without a credit card and scheduling features such as dependencies and automatic scheduling. Its AI maker can draft phases, tasks, suggested dependencies, and milestones from a project description. Review the paid plan before relying on it beyond the trial.
Instagantt: The free three-project option is the Asana-linked version, not a general free standalone plan. The vendor documents bidirectional synchronization. Decide which system owns task fields and test the sync before wider use.
Lucen Timeline: Lucen is oriented toward presentation timelines and Gantt visuals, including PowerPoint use. Treat it as a reporting layer unless the actual project work remains managed elsewhere. Check whether the account uses Timeline Online or the PowerPoint add-in before relying on free-item or watermark terms.
Google Sheets and Excel: Sheets Timeline can organize structured date data when the account is eligible. Microsoft documents Excel’s Gantt-like method as a customized stacked bar chart. Their standard visual features do not provide the same built-in dependency propagation documented by dedicated schedulers. Formulas or scripts would be custom logic to maintain and test.
Test scheduling behavior before building the full plan
A short hypothetical website-migration chain can show whether a tool is maintaining schedule logic or merely displaying dates:
Task chain: content inventory -> redirect mapping -> development -> QA -> launch
Sample fields: project_id, task_id, task_name, start_date, due_date, dependency_predecessor_id, owner, statusIn ClickUp, create the tasks, enter dates, connect the dependencies in Gantt View, and enable dependency rescheduling. Move the content-inventory date and inspect whether downstream work shifts as intended. Check dependency direction, the working calendar, and the resulting dates before saving a baseline. A critical-path display reflects the logic entered; it does not establish staff availability or assess project risk.
For a GanttPRO AI first draft, provide an approved objective, target date, known milestones, teams or roles, and scope exclusions. Review the proposed phases, tasks, dependencies, and milestones in the product. The planner must still confirm deliverables, owners, calendars, workload, approval lead times, and fixed constraints. AI generation is a drafting step, not schedule approval.
Automatic date movement is only as reliable as the relationships and calendars entered. Move one known upstream task, compare the downstream result with the intended rule, and review resource capacity separately.
Choose by work context, not feature count
- Choose ClickUp when the schedule should sit beside the tasks and documented dependency and critical-path behavior matters. Verify current free-plan allowances.
- Choose TeamGantt when one person, one project, and up to 40 tasks fit the current free plan.
- Choose ProjectLibre or GanttProject when local desktop planning is acceptable and browser-live collaboration is not required. GanttProject is the clearer fit when open-source software and no signup are priorities.
- Choose GanttPRO when a 14-day trial is enough to evaluate a dedicated online scheduler and a paid plan could follow.
- Choose Instagantt when Asana remains the task source and the three-project free option fits.
- Choose Lucen Timeline, Sheets, or Excel when the main output is a presentation or simple visual and manual schedule maintenance is acceptable.
When the task source and timeline are separate, assign ownership before connecting them. For Instagantt with Asana, test one controlled task update in each direction and choose which system owns dates and assignments. For a spreadsheet, use a stable task ID and valid date values; the named schedule owner updates affected dates when upstream work moves.
A practical adoption check: source of truth, import, and exit
Before moving a real project, name the authoritative system for task names, owners, dates, and status. Test a copy of a project file or one synchronized task, then compare what arrived. ProjectLibre and GanttProject document Microsoft Project interoperability, but validate task counts, calendars, constraints, resources, baselines, and key dates rather than assuming lossless conversion.
- Identify the source of truth and assign an owner for each field that can change.
- Test one import or synchronization update on a copy or controlled task.
- Compare record counts, dates, calendars, owners, and required schedule details.
- Confirm collaboration access, project and task limits, trial end date, and any watermark rule.
- Verify the export or exit path and name the person who resolves conflicts.
If you are configuring ClickUp as an operational workspace, see ClickUp setup and automation support. This is a service option, not a requirement for using Gantt View.
For implementation records, treat each task as one row at the task grain. A proposed illustrative key is project_id + task_id + plan_version_id when storing plan snapshots. Keep task history separately at an event grain such as task_id + changed_at + event_id. If concurrent workers can create records, use a database-enforced unique constraint and transactional upsert. A lookup followed by create is not race-safe.
Frequently asked questions
Which free Gantt software works on Mac?
ProjectLibre Desktop and GanttProject explicitly document macOS support. Browser-based options can be accessed through a browser, subject to account and plan requirements. Lucen’s PowerPoint add-in and Timeline Online have different product conditions.
Can I use a free Gantt tool without creating an account?
GanttProject explicitly says signup is not required for its desktop product. ProjectLibre Desktop is locally installed. Browser services generally require an account, so check the relevant vendor’s current access requirements.
Can I use Microsoft Project files in a free Gantt tool?
ProjectLibre and GanttProject document Microsoft Project interoperability. Use a copy of the file and compare key tasks, dates, calendars, constraints, resources, and baselines after import. Compatibility is not a guarantee that every feature will transfer unchanged.
Is a Gantt chart the same as a project timeline?
A Gantt chart shows task durations on a time axis and may include dependencies and scheduling logic. A plain timeline can simply communicate the order or dates of milestones. Choose based on whether the chart must maintain work logic or mainly explain a plan.
Should I trust an AI-generated schedule?
Use it as a draft. A project owner reviews task completeness, dependency direction, dates, roles, calendars, workload, milestones, approvals, and constraints before publishing or baselining the plan.