Gantt Chart Maker for Free, Online

Two ways to make a Gantt chart here

• Data mode: enter your tasks with their start and end dates (or durations) and the tool plots each one as a bar on an accurate, to-scale timeline — no dragging, aligning, or spreadsheet formulas.
• AI illustration mode: describe your project in plain English and the tool generates a polished, presentation-ready Gantt-style graphic with themed colors and styling.
• Use data mode when the dates have to be exact (a real project plan, a thesis schedule, a client deliverable); use AI mode when you want a clean visual for a slide, proposal, or pitch.

Tasks, durations, dependencies, and milestones

• Tasks: the individual pieces of work, each on its own row with a start and end date.
• Durations: how long a task takes — set it directly, or let it follow from the start and end dates.
• Dependencies: links that say one task can only start after another finishes, so the schedule stays realistic.
• Milestones: zero-duration markers for key dates such as a kickoff, an approval, or a launch.
• Phases: group related tasks (for example Research, Build, Launch) to keep a longer plan readable.

How to make a Gantt chart online from a task list

• List your tasks — one per line — and give each a start date and an end date (or a duration).
• Add any dependencies so tasks that rely on each other line up in the right order.
• Mark milestones for the dates that matter, like approvals, deadlines, or the launch.
• The tool plots every task as a bar on a to-scale timeline and labels the schedule for you.
• Adjust colors and labels, then export a clean SVG or PNG to drop into a doc, slide, or report.

How to read a Gantt chart timeline

Read a Gantt chart from left to right: the horizontal axis is time (days, weeks, or months) and each row is a task. A bar’s left edge is the start date and its right edge is the end date, so its length is the duration. Tasks whose bars overlap vertically run at the same time, while a task that begins only after another ends shows a dependency. Diamonds or flags mark milestones. Following the chain of dependent tasks reveals the critical path — the sequence that determines the project’s finish date — which is why a Gantt chart is the standard way to plan and track schedules in project management.

When to use the AI illustration mode

Reach for AI illustration mode when you want a styled, eye-catching schedule graphic rather than a strict, date-accurate plan — a roadmap slide for a pitch, a high-level timeline for a proposal, or a visual for a blog post. For anything where the dates and dependencies must be exactly right, such as a project plan you will actually track against or a deliverable schedule, use data mode so every bar is placed to scale from your real dates.