Creating a Gantt chart with ChatGPT is a practical way to speed up project planning. Instead of building timelines manually from scratch, you can use ChatGPT to define tasks, estimate durations, and organize dependencies, then turn that structure into a visual Gantt chart using Excel or project management software like GoodDay.
In this guide, we’ll explore how to make a Gantt chart with ChatGPT, which methods you can use, and how to combine ChatGPT with project management software for a complete workflow.
GoodDay’s Gantt charts provide advanced customization capabilities that work for both simple tasks as well as complex, multi stage projects. If you have any questions that are not covered in this article, you can always connect with us via info@goodday.work
What ChatGPT does in Gantt chart creation
ChatGPT works as a planning and structuring assistant. It helps you think through the project and prepares clean, organized data that a Gantt chart needs. ChatGPT can help you:
- break a project into tasks and phases
- estimate task durations
- define task order and dependencies
- structure data in tables or code formats
ChatGPT does not usually create an interactive visual Gantt chart on its own. To see and manage the timeline visually, you still need a spreadsheet, a project management tool like GoodDay, or a specialized Gantt chart GPT.
How to make a Gantt chart with ChatGPT: top 3 methods

Let’s explore top methods of creating a Gantt chart with help of ChatGPT. By utilizing these methods, ChatGPT can significantly speed up the planning phase of your project.
Method 1: Exporting data for Excel, Google Sheets, or project management tool like GoodDay
This method gives you a flexible and editable Gantt chart using standard tools. You can use spreadsheets for basic visualization or import the same data into GoodDay to create a live, interactive Gantt chart.
- Prompt ChatGPT to structure your project plan as a table with the necessary columns.
Example prompt: Generate a project plan as a table with columns for task name, start date, end date, duration, and responsible owner for a marketing campaign.
- Refine the data with follow-up prompts until the plan is complete.
Example prompts: Add task dependencies to this project plan. Add milestones and key delivery dates. Adjust the timeline to fit an eight-week schedule.
- Export or prepare the data for use in another tool.
Example prompt: “Format this project plan so it can be easily imported into Excel, Google Sheets, or a project management tool.”
- Open the data in Microsoft Excel, Google Sheets, or a project management tool like GoodDay.
In Excel or Google Sheets, use a built-in Gantt template or bar chart to visualize the timeline. With GoodDay, you can add or import the tasks, set dates and dependencies, and the Gantt chart is created automatically and stays updated as the project progresses.
Method 2: Using a dedicated Gantt chart custom GPT (requires ChatGPT Plus)
If you have a ChatGPT Plus subscription, you can use specialized GPTs designed for creating Gantt charts.
- Search for “Gantt chart” in the GPT Store.
- Select a relevant GPT, such as Gantt Chart GPT or Gantt Chart Maker AI.
- Upload your project data, for example an Excel file, or describe your project in plain English.
- Instruct the GPT to generate the Gantt chart.
Depending on the tool, the output may include a structured table, a visual image, or a file that can be opened in Excel or another project management tool.
Method 3. Using Mermaid syntax for a basic diagram
This method is useful when you need a quick and simple Gantt chart image. The result is a static diagram that cannot be edited or updated automatically.
- Prompt ChatGPT to generate a project plan in Mermaid syntax.Example Prompt: “Create a project plan as a Mermaid Gantt chart for a website redesign project, including tasks, start dates, and durations.”
- Copy the code generated by ChatGPT.
- Use a Mermaid renderer to convert the code into a diagram. Open the Mermaid Live Editor online, paste your code, and you will see the generated Gantt chart.
- Export the chart by saving the image file (e.g., PNG or SVG) from the Live Editor.
This method is best for documentation or presentations, not for managing real project work.
Why ChatGPT works best with a project management software like GoodDay

ChatGPT is excellent for planning a Gantt chart, but projects do not stay static. Tasks move, deadlines change, and teams need a shared view of progress. This is where a project management tool becomes essential.
When you move your ChatGPT-generated plan into GoodDay, your Gantt chart becomes interactive, always up to date, connected to real tasks and easy to adjust when plans change. Turning a ChatGPT plan into a live Gantt chart in GoodDay is simple:
- Use ChatGPT to define tasks, dates, and dependencies.
- Add or import those tasks into GoodDay.
- Open the Gantt view to see the full timeline instantly.
GoodDay automatically keeps the Gantt chart in sync with task updates, progress, and changes made by the team.
Why teams choose GoodDay for Gantt charts

GoodDay is an all-in-one project management platform with deeply configurable Gantt chart functionality used by Fortune 500 companies, scaling startups, and established organizations all over the world. It is recognized as a top-rated software in 12 Capterra shortlists.
The platform is known for its flexible setup options and responsive support team. And its modest price is a standout, you really get a lot for what you pay. With GoodDay, you can:
- drag and adjust tasks directly on the Gantt chart
- manage dependencies without breaking the timeline
- track progress in real time
- connect Gantt charts with tasks, goals, and workload
And if you have questions about creating your chart or want to explore how GoodDay can support your workflows, feel free to contact our team at info@goodday.work
FAQs
Can ChatGPT make a Gantt chart for me?
Yes, ChatGPT can help you create gantt charts by structuring tasks, dates, and dependencies for a clear project timeline. It supports project planning by organizing details, milestones, and resources from a simple description of your work. While it does not render a live chart by itself, chatgpt takes care of the planning logic so you can convert the output into a visual tool. This approach helps teams begin faster and improve productivity.
How can I generate a Gantt chart?
You can generate a Gantt chart by asking ChatGPT to gather tasks, durations, and dependencies, then refine them into a clean table. From there, you fill a spreadsheet or project app and assign tasks across a defined workflow. This method works well for marketing, development, and sales projects that need clear connections and quality control. It also supports adjustments as scope changes and new risk appears.
Can AI create a Gantt chart?
Yes, AI can plan and structure Gantt data by turning an idea into an actionable timeline. It helps teams create gantt charts that include milestones, dependencies, and ownership without manual setup. This is especially useful for business teams that need speed, clarity, and measurable benefits. Many teams start free and later scale as needs grow.
Can ChatGPT create charts?
ChatGPT can generate structured data and code that tools use to display charts, including Gantt formats. Using artificial intelligence, it explains the process and provides a repeatable technique to build timelines from one task to many. It also supports sharing information by preparing tables that teams can collaborate on with stakeholders. The result is a practical way to automate planning steps and reduce error.
Can AI create visualizations?
AI tools can prepare data for visualizations, while dedicated software like GoodDay renders the final chart view. ChatGPT focuses on planning so teams can launch faster and support collaboration across roles. For a business, this means AI can generate structured timelines while teams focus on execution instead of setup. It also helps teams think through a project challenge early and organize the right resources. Clear inputs and supporting materials make the visualization process faster and more reliable.
Can ChatGPT make visualizations?
ChatGPT can output formats used by visualization tools, including tables and scripts, but it does not host interactive visuals itself. It is often paired with a tutorial, video, or app menu to show next steps and confirm the sign of readiness. Teams use prepared materials to align stakeholders and keep connections clear. This balance improves productivity while maintaining planning accuracy.