📊 Gantt Chart Maker
Lay tasks out on a timeline with bars, milestones and dependencies, track % complete, and export a PNG, PDF or CSV. Private, in your browser.
| Task | Start | End | % | ◆ | After | |
|---|---|---|---|---|---|---|
Drag a bar to reschedule it, or drag its ends to resize. Use ＋ / － / Fit to zoom the timeline. The filled part shows % complete, ◆ marks milestones, and the red line is today. Saved locally; export PNG, PDF, CSV or JSON.
How the gantt chart maker works
A Gantt chart shows a project as horizontal bars on a timeline — each bar a task, spanning its start to end date, so you can see what happens when and what overlaps. Add tasks in the table, set their dates and percent complete, mark milestones (shown as diamonds) and optionally link a task to the one it follows (a dependency arrow). The timeline auto-scales to your project, a red line marks today, and the filled portion of each bar shows progress. Export the chart as a PNG or PDF, the data as CSV or JSON, all saved in your browser.
Gantt charts are excellent for communicating a plan and terrible if you treat them as gospel — real projects slip, and a chart that isn't updated quickly becomes fiction. Use it to see the shape of the work and the critical hand-offs (the dependency arrows), update the percentages as you go, and don't over-engineer every sub-task. Everything is computed and stored on your device.
Frequently asked questions
What is a Gantt chart?
A bar chart of a project schedule: each task is a horizontal bar positioned by its start and end dates on a timeline, so you can see durations, overlaps and the overall shape of the plan at a glance.
How do dependencies work here?
Set a task's "After" field to the task it follows, and an arrow is drawn from the predecessor to it. It's a visual link showing the hand-off; it doesn't auto-reschedule, so you keep full control of the dates.
What are milestones?
Zero-duration markers for key moments — a launch, an approval, a deadline — shown as diamonds rather than bars. Tick the milestone box on any task to turn it into one.
Can I export the chart?
Yes — as a PNG or PDF image for sharing or printing, or as CSV/JSON data. The whole chart is also auto-saved in your browser.
Is anything uploaded?
No — the timeline is drawn and stored entirely on your device. Export JSON to back up or move devices.