Best Free Gantt Chart Software in 2026

A Gantt chart is only as useful as the engine behind it. Any tool can draw bars; the ones worth paying for — or, in one case, not paying for — recalculate your schedule when a task slips, surface the critical path, and let you build a plan in minutes instead of hours. Here are the six we recommend, who each is best for, and where each falls short.

Gantt chart software compared

1. LoopGantt

   Our product — best for AI-assisted planning and free use. LoopGantt turns a plain-English description into a full schedule in seconds, with critical path analysis, four dependency types, and synced Gantt, Kanban, and WBS views. The free plan is genuinely usable (three projects, no credit card) and Pro is $5/month. Where it falls short: no resource leveling, earned-value analysis, or per-resource calendars — enterprise programs that need those still belong in Microsoft Project.

2. Microsoft Project

   Best for enterprise programs. Microsoft Project is the long-standing standard for complex, resource-heavy programs, and Copilot now drafts plans on its premium tiers. It is powerful but expensive and carries a steep learning curve that is overkill for most small teams; the full desktop app is Windows-only, though the web plans cover Mac.

3. Smartsheet

   Best for spreadsheet fans. Smartsheet wraps project management around a familiar grid. Its Gantt views, dependencies, and critical-path highlighting are solid, and there is a limited free plan — but key features sit behind higher tiers and pricing climbs quickly with seats.

4. monday.com

   Best for team collaboration. monday.com is a colorful, flexible work platform with a timeline view. It is great for cross-functional collaboration, though true critical-path scheduling is limited and per-seat pricing adds up.

5. TeamGantt

   Best simple, dedicated Gantt. TeamGantt is a clean, approachable Gantt-first tool that is easy to learn. It covers the basics well, with critical path on its paid plans, but lacks AI generation and the deeper analysis power users need.

6. GanttPRO

   Best for classic manual control. GanttPRO offers detailed manual Gantt scheduling with dependencies and baselines. It is capable, but everything is built by hand and there is no permanent free tier.

"AI scheduling" here means generating a complete, dependency-linked schedule from one prompt. Assistants that draft task lists or summaries — Microsoft Copilot, monday AI — count as Limited.

How to choose the right Gantt chart software

Start with how your work behaves. If you have deadlines and dependencies, prioritize a real critical-path engine with automatic rescheduling. If you want to skip the setup, choose a tool with AI generation. If budget matters, check whether the free plan is actually usable or just a trial. For most small teams and freelancers, a free, AI-assisted tool with critical path covers everything they need. And to be plain about our own limits: if you rely on resource leveling, earned-value tracking, or per-resource calendars, LoopGantt is not there yet — that work still belongs in Microsoft Project.