How the Gantt chart works

Each Trello card becomes a bar on the timeline. Drag the middle of a bar to move it, or drag either edge to change its start or due date. Use the Day / Week / Month buttons to zoom the timeline and Today to jump to the current date. Hover any bar to see its start and due dates without opening the card.

Click the circular handle on a card and drag the arrow to another card to create a dependency. Click an existing connection line to edit its type and lag, or double-click the arrow to remove it. A dependency is stored on the successor—the card that depends on another.

• FS

  Finish → Start

  The successor starts after the predecessor finishes. The most common type, and the default for new connections.

• SS

  Start → Start

  The successor can't start until the predecessor starts. Useful for work that runs in parallel once kicked off.

• FF

  Finish → Finish

  The successor can't finish until the predecessor finishes. Use when two cards must wrap up together.

• SF

  Start → Finish

  The successor can't finish until the predecessor starts. Rare—mostly for hand-offs between shifts or phases.

The chart schedules forward: when you move a card that others depend on, every downstream card shifts automatically to respect its connection type and lag. The cascaded dates are written back to Trello for you—no need to drag each dependent card by hand.

Click Critical path in the toolbar to highlight the chain of cards that determines your project's end date. If any card on the critical path slips, the whole project's finish date slips with it.

A milestone marks a key moment—a launch, a sign-off, a deadline—as a single diamond instead of a bar. Right-click any card and choose Convert to milestone (right-click again to convert it back).

A baseline is a saved snapshot of your plan, drawn as a faint "ghost" bar behind each task so you can see how the current schedule has drifted from the original. Use the Baseline ▾ menu to:

• Show / Hide baseline—toggle the ghost bars on or off.
• Set baseline to current dates—capture today's schedule as the plan.
• Clear baseline—remove the saved plan.

Comparing planned vs. current for a task

1. Make sure the task has both a start and end date. Tasks without dates are skipped when a baseline is captured, so they get no ghost bar.
2. Open Baseline ▾ and choose Set baseline to current dates. This snapshots the current schedule of every dated task as the plan and turns the ghost bars on.
3. Reschedule the task—drag its bar, or let auto-scheduling shift it. The live bar moves while the ghost bar stays at the captured plan.
4. Read the gap between the live bar and the ghost beneath it: that offset is how far the task has drifted from plan.

• Sidebar: the panel next to the timeline lists your cards with their owner and checklist progress. Drag its border to resize it to fit your screen.
• Group cards by list (column), label, or member into swimlanes.
• Filter by a single member, a specific label, or a Trello list to focus on just the cards that matter.

Pro turns the sidebar into fully manageable columns, so the panel shows exactly the card data your team needs, laid out the way you want.

• Click a column header to sort by it, and drag a border to resize any column.
• Use the column picker to show or hide columns—name, dates, members, and checklist progress.
• Your column layout is remembered per board in this browser.

Le Gantt is 100% Trello-native. Everything the chart adds—start and due dates, dependencies, connection types, lag, and milestone flags—is stored directly in your Trello card properties.

• No external database, no custom fields, and no account or registration required.
• Card titles, labels, members, and checklists always come from Trello.
• Your scheduling data stays securely within your own Trello workspace.

Le Gantt for Trello is free to use—there's no trial, because almost everything is simply free. Several Pro features, such as baselines and task columns, need an active subscription: $19/month or $190/year (two months free on the yearly plan). Start it anytime from the Upgrade to Pro button inside the Power-Up.

• One subscription per Trello Workspace. Billing covers the whole Workspace, and every member is included—there's no per-seat charge.
• Admins manage billing. Only Workspace admins can start, change, or cancel the subscription. Other members keep full Pro access while it's active but can't change billing.
• Billing contact. The admin who subscribes becomes the billing contact. Another admin can transfer the billing contact to themselves from the Subscription page.
• Payments & invoices are handled by our reseller, Lemon Squeezy, as Merchant of Record (so applicable taxes are included). Admins can open the billing portal to update payment details or download invoices.