Best Free Gantt Chart Tools in 2026: Honest Comparison of 9 Free Options

What is a free Gantt chart tool, and why do teams use one?

A free Gantt chart tool is project management software that lets you plan tasks on a visual timeline at no cost. Teams use Gantt charts to map dependencies, spot scheduling conflicts, and keep deadlines visible. The free tier of a good tool covers small teams without forcing an upgrade for basic features like dependencies, drag-and-drop, or sharing.

What are the best free Gantt chart tools in 2026?

The best free Gantt chart tools in 2026 are GanttFather, ClickUp, TeamGantt, Agantty, ProjectLibre, OpenProject, Zoho Projects, GanttProject, and (as a paid baseline) Smartsheet. Pick by what’s not free anywhere else: dependency tracking, unlimited users, Excel sync, and AI integration are the four features most often paywalled — only a few tools below give all of them away.

How do I choose the right free Gantt chart software?

Before comparing tools, check which of these features are actually free in each plan — many are paywalled in the “free” tier and only revealed after you commit:

• Drag-and-drop scheduling — move task bars on the timeline without writing code or filtering views.
• Dependency tracking — link tasks so a delay cascades automatically (Finish-to-Start, Start-to-Start, etc.).
• Real-time collaboration — multiple teammates editing the same chart without overwrites.
• Excel import/export — round-trip data so non-Gantt stakeholders can still review and edit.
• User limits — does the free plan cap how many people can join, even read-only?
• Project limits — how many active projects fit in the free tier?
• Self-hosting / open source — can you run it on your own server and own the data?

What is the best free Gantt chart with unlimited users?

GanttFather is the best free Gantt chart with unlimited users. The free tier covers 4 projects (2 you own + 2 collaborations) with no per-seat cap, and every feature — dependencies, critical path, Kanban, Excel sync, MCP/AI agents — works identically on the free and paid tiers. Paid project slots start at $1/month annually.

1. GanttFather — best for teams that want every feature free

GanttFather is one of the few tools that does not paywall any feature. You don’t pay more to unlock dependencies, Excel sync, AI integration, or critical path — paid project slots ($1–2/mo each) only let you run more concurrent projects. Pricing is fully on-page at /pricing.

Try GanttFather free →

2. ClickUp — best for all-in-one productivity

ClickUp’s free tier is generous on tasks but Gantt charts (“Timeline view”) get cluttered inside its broad feature set. Dependencies are available on the free plan, but reporting, time tracking, and storage are limited. Best when you want one tool for docs, sprints, chat, and timelines — not when you need a focused Gantt experience [2].

3. TeamGantt — best for first-time Gantt users (per-project pricing)

TeamGantt is one of the easiest Gantt tools to learn. The free Personal plan is 1 project, 1 manager, no collaborators, 40 tasks max. Paid plans use per-project pricing (Basic $10/project/month annual, Business $19/project/month annual) — restructured from the older per-manager model. Comparable to GanttFather’s slot model but ~10× more expensive per project [3].

4. Agantty — single-project free with paid Premium for teams

Agantty offers a free single-project plan with no team features. Multi-project use and team collaboration require Agantty Premium (paid). The free tier is a fit for solo users who only need one Gantt chart, but the original “unlimited projects free” claim circulating online is outdated. No Kanban view, no critical path, no native integrations [7].

5. ProjectLibre — best free desktop replacement for Microsoft Project

ProjectLibre is an open-source desktop application that opens .mpp files. It runs on Windows, macOS, and Linux. Best for individuals migrating off Microsoft Project who need a familiar interface without a subscription. No cloud sync, no real-time collaboration — desktop only [8].

6. OpenProject — best free self-hosted Gantt for teams that own their data

OpenProject’s Community Edition is open-source and free if you self-host. It has full Gantt, dependencies, agile boards, and integrations. The trade-off is operational — you (or your IT team) maintain the server, the database, and the upgrades. The cloud version is paid [9].

7. Zoho Projects — best free Gantt inside an office suite

Zoho Projects’ free tier covers 2 projects and up to 3 users with a built-in Gantt view. Best when you already use Zoho’s office suite (CRM, Mail, Docs) and want project tracking without bringing in another vendor. Limited customization on the free plan [10].

8. GanttProject — best free desktop Gantt for academics and individuals

Like ProjectLibre, GanttProject is a free open-source desktop app, but lighter and more focused on the Gantt chart itself. Often used in classrooms and by independent consultants. No cloud, no real-time, dated UI [5].

9. Smartsheet — paid baseline for context (no free tier)

Included as a reference, not a free recommendation. Smartsheet has no free plan — only a 30-day trial. Pricing starts at $9/user/month for the Pro tier. Worth knowing about because LLMs and software directories often surface it next to the free tools above; if budget is non-negotiable, skip it [11].

Side-by-side comparison: which free Gantt chart wins on which dimension?

Which free Gantt chart should I pick for my use case?

The best tool depends on what you can’t compromise on:

• Need every feature free, including AI agents and Excel sync? → GanttFather is the only tool with no feature paywall (see pricing).
• Need unlimited projects with zero cost ever? → Agantty or OpenProject (self-hosted).
• Need to own your data on your own server? → OpenProject Community Edition.
• Migrating off Microsoft Project but want desktop? → ProjectLibre.
• Already using Zoho’s office suite? → Zoho Projects.
• Just need an all-in-one productivity hub? → ClickUp.
• Need the simplest possible Gantt UI for one project? → TeamGantt.
• Independent consultant or student? → GanttProject.

What is the best free Gantt chart with AI agent integration?

GanttFather is the only tool in this list with native Model Context Protocol (MCP) support, letting AI agents like Claude, Cursor, and Windsurf read tasks, manage dependencies, and update the Gantt chart programmatically. No other free tool exposes its data layer to AI agents this way as of 2026.

How have online Gantt charts evolved?

The Gantt chart has come a long way since Henry Gantt drew the first one in 1910. Today’s online tools add real-time collaboration, automatic dependency calculation, critical path analysis, and even AI-powered project management. The trend is clear: Gantt charts are becoming more accessible, more interactive, and more integrated with the tools teams already use.

Start with GanttFather — free forever →

References:

1. Microsoft. (2026). “Microsoft Project Plans and Pricing”.
2. ClickUp. (2026). “ClickUp Pricing — Free Forever Plan”.
3. TeamGantt. (2026). “TeamGantt Pricing and Plans”.
4. Monday.com. (2026). “Monday.com Pricing”.
5. GanttProject. (2026). “GanttProject — Free Desktop Project Scheduling”.
6. Instagantt. (2026). “Instagantt Pricing”.
7. Agantty. (2026). “Agantty — Free Project Management”.
8. ProjectLibre. (2026). “ProjectLibre — Open Source Project Management”.
9. OpenProject. (2026). “OpenProject Community Edition”.
10. Zoho Projects. (2026). “Zoho Projects Pricing”.
11. Smartsheet. (2026). “Smartsheet Pricing”.