📊 Gantt Chart Maker

Generate beautiful Gantt charts by setting task names, start dates, end dates, and colors. Use it for project management and schedule sharing. Downloadable as PNG images.

Task Name Start Date End Date 色

Usage and Application Examples

  • For project schedule management and progress sharing
  • Quickly create timeline diagrams for meetings and presentations
  • Visualize by phase with color-coding for each task
  • Download as PNG image and insert into reports
  • For creating school assignment and event schedules

What is a Gantt Chart?

A Gantt chart is a visual project management tool that displays tasks as horizontal bars along a timeline. This browser-based tool lets you create professional Gantt charts instantly without purchasing expensive software or learning complex applications. It's essential for planning projects, managing deadlines, coordinating team efforts, and communicating schedules to stakeholders effectively.

How to Use

Enter your task names in the left column and specify start dates and end dates for each task. Assign distinct colors to different tasks to represent project phases, team assignments, or priority levels. The tool automatically generates a visual timeline showing task duration and overlap. You can adjust dates by dragging bars, add new tasks, and export the chart as an image for presentations or reports. The interface updates instantly as you edit.

Use Cases

A marketing manager can plan a product launch campaign, mapping research, design, copywriting, and promotion phases across weeks. Software development teams use Gantt charts to track sprint planning, development, testing, and deployment cycles. Event planners outline venue booking, vendor coordination, invitations, setup, and post-event tasks. Construction projects schedule foundation work, framing, utilities, finishing, and inspections. Product teams visualize feature development roadmaps and release schedules across quarters.

Tips & Insights

Color-coding by department helps teams quickly identify responsibilities and handoff points. Tasks that overlap indicate parallel work; non-overlapping sequences show dependencies where one task must finish before another starts. Update your chart weekly to track actual progress against planned dates—this variance reveals scheduling issues early. Gantt charts become more valuable as projects grow in complexity, with many interdependent tasks and team members.

Frequently Asked Questions

What is a Gantt chart?

A Gantt chart is a horizontal bar graph schedule used in project management. It displays the start and end dates of each task as horizontal bars, making the overall schedule easy to understand at a glance.

How many tasks can I add?

There is no limit. The chart automatically expands as you add tasks. However, for readability, 10-20 tasks are recommended.

Can I save the created Gantt chart as an image?

Yes. Click the "Download PNG" button to download the displayed Gantt chart as a PNG image. You can use it in presentations and reports.

Can I set individual colors for each task?

Yes. Each task has a color picker, allowing you to set individual colors. Color-coding by category or phase improves visibility.

Is the data entered secure?

Yes. All processing is completed within the browser and no data is sent to the server. You can use this service with peace of mind.

Can I export the Gantt chart data in different formats?

Yes, you can export your chart data in CSV format for use in spreadsheet applications or other project management tools. JSON export is also available for developers who want to integrate the data with their own systems or backup the project structure.

How do I show task dependencies or relationships between tasks?

While this tool focuses on basic Gantt visualization, you can represent dependencies by adjusting task dates so that dependent tasks start after their predecessors end. Color-coding related tasks can also help visually indicate which tasks are connected.

Can I add milestones to mark important project dates?

Milestones can be created as tasks with zero duration (same start and end date), which will appear as diamonds on the Gantt chart. This helps you mark key deadlines and project phases without consuming task slots.

What happens to my chart if I change task dates after creation?

The Gantt chart updates in real-time as you modify any task dates, colors, or names. The chart automatically recalculates the timeline, so you can experiment with different schedules to find the optimal project plan.

Can I share my Gantt chart with team members?

You can save the chart as an image and share it via email or messaging apps. For collaborative editing, you can also copy the task data and share it with colleagues who can recreate the chart in the tool.

Is there a limit to the project duration or date range I can use?

The tool supports a wide range of dates from past to future, allowing you to create charts for projects spanning months or years. However, extremely long timescales spanning multiple decades may reduce the chart's readability.